Weather in Key Colony Beach

14-day forecast · updated today, Thursday, October 29, at 8:01 am (EDT)

Now · light drizzle 78 °F

Feels like: 84 °F
Low / high: 76 / 83 °F
Rain: 5%
Wind: 13 mph NE

↗ 29.92 inHg · rising UV 7 · high

Today in Key Colony Beach: light drizzle, 76 °F to 83 °F, with a 5% chance of rain and a moderate breeze from the northeast (13 mph). Tomorrow, light drizzle, 77 °F to 82 °F and a 13% chance of rain. The warmest day of the week is Thursday 29, at 83 °F.

Measured now at the airport

Marathon (KMTH), 1.9 mi away · 18 min ago

Visibility9.9 mi or more

WeatherNothing to note

Temperature78 °F

Wind7 mph from the northeast

It's what the airport's weather station measured, not a forecast: on the coast, wind and fog can be different. Airports report every 30 or 60 minutes.

Airport METAR report, via NOAA's Aviation Weather Center (aviationweather.gov). Sources and licenses

Temperatures for the next 14 days

83° 76°
Today
82° 77°
Fri 30
82° 80°
Sat 31
81° 79°
Sun 1
81° 78°
Mon 2
81° 77°
Tue 3
81° 78°
Wed 4
81° 78°
Thu 5
80° 77°
Fri 6
79° 76°
Sat 7
78° 74°
Sun 8
81° 75°
Mon 9
80° 78°
Tue 10
79° 77°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Light drizzle	76 / 83 °F	5%	15 mph ENE	2.5 ft	12:20 pm · 11:59 pm	HRRR
Fri 30	Light drizzle	77 / 82 °F	13% · 0.05 in	13 mph ENE	1.4 ft	1:15 pm	HRRR + NBM
Sat 31	Light drizzle	80 / 82 °F	31%	15 mph ENE	1.6 ft	12:58 am · 2:16 pm	NBM
Sun 1	Light showers	79 / 81 °F	62% · 0.25 in	18 mph ENE	2.2 ft	1:05 am · 2:23 pm	NBM
Mon 2	Light showers	78 / 81 °F	54% · 0.20 in	17 mph ENE	1.9 ft	2:19 am · 3:29 pm	NBM
Tue 3	Light drizzle	77 / 81 °F	22%	15 mph ENE	1.6 ft	3:38 am · 4:29 pm	NBM
Wed 4	Light drizzle	78 / 81 °F	8%	12 mph ENE	1.7 ft	4:54 am · 5:18 pm	NBM
Thu 5	Light drizzle	78 / 81 °F	13%	9 mph NW	1.4 ft	5:59 am · 6:01 pm	NBM
Fri 6	Light drizzle	77 / 80 °F	21%	12 mph NW	3.2 ft	6:54 am · 6:39 pm	NBM
Sat 7	Mainly clear	76 / 79 °F	13%	13 mph N	1.6 ft	7:40 am · 7:16 pm	NBM
Sun 8	Mainly clear	74 / 78 °F	9% · 0.02 in	17 mph NE	1.8 ft	8:20 am · 7:52 pm	NBM
Mon 9	Light drizzle	75 / 81 °F	15% · 0.07 in	16 mph ENE	1.8 ft	8:57 am · 8:28 pm	NBM + ECMWF
Tue 10	Light drizzle	78 / 80 °F	17% · 0.10 in	14 mph ENE	1.6 ft	9:33 am · 9:05 pm	ECMWF
Wed 11	Light drizzle	77 / 79 °F	22% · 0.17 in	11 mph NE	1.2 ft	10:10 am · 9:44 pm	ECMWF

Each hour comes from the best model for this spot: HRRR until Friday 30 3:00 am; then NBM until Monday 9 2:00 am; then ECMWF until Thursday 12 10:00 pm; then GFS.

Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.

Today, every 3 hours

Time	12:00 am	3:00 am	6:00 am	9:00 am	12:00 pm	3:00 pm	6:00 pm	9:00 pm
Sky	Light drizzle	Light drizzle	Light drizzle	Light drizzle	Clear sky	Clear sky	Clear sky	Clear
Temperature	78°	78°	77°	79°	83°	83°	80°	78°
Chance of rain	2%	3%	3%	3%	3%	5%	3%	3%
Rain	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in
Wind (mph)	10 ENE	9 NE	9 NE	14 NE	15 NE	13 E	11 E	7 E
Humidity	84%	93%	93%	90%	81%	83%	82%	89%
UV	0	0	0	1	6	5	0	0
Model	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR

Do the models agree?

Low confidence

They don't agree on rain today: it may change, so check again closer to the day.

What 6 forecast models say for the next few days. The closer they are, the more reliable the forecast.

HighRainWind

Do the models agree? · High
High (°F)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	83°	82°	81°	81°	78°	81°	81°
AIFS	82°	82°	82°	80°	79°	80°	81°
GFS	81°	80°	80°	81°	81°	80°	80°
ICON	82°	81°	82°	81°	81°	82°	81°
HRRR	83°	83°	—	—	—	—	—
NBM	82°	82°	82°	81°	81°	81°	81°
Confidence	high	high	high	high	high	high	high

Do the models agree? · Rain
Rain	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	0.08 in	0.11 in	0.08 in	0.83 in	0.92 in	0.11 in	0.06 in
AIFS	0.05 in	0.01 in	0.09 in	0.53 in	0.65 in	0.21 in	0.08 in
GFS	0.04 in	0.01 in	0.05 in	0.72 in	0.42 in	0.15 in	0.11 in
ICON	0.20 in	0.03 in	0.03 in	0.57 in	0.39 in	0.38 in	0.13 in
HRRR	0	0	—	—	—	—	—
NBM	0	0.05 in	0	0.25 in	0.20 in	0	0
Confidence	low	medium	medium	high	medium	medium	high

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	1622	1419	1824	1930	1816	1529	1220
AIFS	15	11	15	17	14	9	6
GFS	1618	1619	1822	1822	1518	1215	1012
ICON	1621	1519	1419	1823	1217	1420	1117
HRRR	1523	1116	—	—	—	—	—
NBM	1519	1317	1520	1822	1721	1519	1216
Confidence	high	high	high	high	high	high	high

Chance of rain from the ensemble models

Model	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF (51 scenarios)	65%	44%	69%	76%	69%	43%	32%
GFS (GEFS, 31 scenarios)	86%	26%	48%	90%	75%	29%	32%
NBM (NOAA)	5%	13%	31%	62%	54%	22%	8%
Thunderstorm (NBM)	2%	17%	19%	24%	31%	20%	13%

Each model's day runs midnight to midnight local time; models that reach fewer days are left blank. Rain: daily total. Wind: the day's highest average wind and, in small type, the strongest gust. Highlighted: values that stand out from the rest. The chance of rain comes from many runs of the same model with slightly different starting data.

Outlook

How the coming weeks and months compare with what is normal for the time of year. It is a trend, not a day-by-day forecast.

Next few weeks, compared with normal: normal temperatures, normal rain and a slightly warmer sea.

Next 6 weeks

When	TemperatureTemp.	Rain	Sea	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	A bit above +1.6 °F	A bit below −43%	A bit above +0.9 °F	—
Nov 9 – Nov 15Nov 9–Nov 15	Normal −0.2 °F	Normal	A bit above +0.5 °F	—
Nov 16 – Nov 22Nov 16–Nov 22	Normal +0.7 °F	A bit above +28%	Normal +0.4 °F	79° / 76°
Nov 23 – Nov 29Nov 23–Nov 29	Normal +0.7 °F	Normal	Normal +0.4 °F	78° / 76°
Nov 30 – Dec 6Nov 30–Dec 6	Normal +0.5 °F	A bit above +27%	Normal 0.0 °F	77° / 75°

Coming months

When	TemperatureTemp.	Rain	Sea
November	A bit above +1.8 °F	A bit above +23%	Above +1.8 °F
December	A bit above +0.9 °F	Above +85%	A bit above +1.6 °F
January	Normal −0.4 °F	Well above +139%	A bit above +0.7 °F
February	Normal −0.2 °F	Well above +135%	Normal +0.2 °F
March	Normal −0.4 °F	Well above +130%	Normal +0.2 °F

Weeks: ECMWF 46-day (average of its scenarios), against the normal of the last 20 years for those dates. Months: ECMWF SEAS5. Rain: total against normal. The further ahead, the closer it gets to normal and the less detail it can give.

Key Colony Beach climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Key Colony Beach is from November to April: highs of 75 °F to 82 °F, about 5 rainy days a month and 7 hours of sunshine a day.

Hurricane season: from August to September, peaking in September. In the last 30 years (1996–2025), 13 tropical cyclones passed within 93 mi of Key Colony Beach, about 4 every 10 years; 5 of them with hurricane-force winds (74 mph or more). The most recent: Eta, in November 2020.

75° 64°

JanJ
77° 65°

FebF
79° 67°

MarM
82° 71°

AprA
86° 75°

MayM
89° 78°

JunJ
90° 80°

JulJ
91° 80°

AugA
89° 78°

SepS
85° 76°

OctO
80° 70°

NovN
77° 66°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	75°	64°	1.60 in	5	6.6	75°	3.2 ft	–
FebruaryFeb	77°	65°	1.36 in	4	7.3	75°	2.8 ft	–
MarchMar	79°	67°	1.31 in	4	8.4	76°	2.8 ft	–
AprilApr	82°	71°	1.91 in	6	8.6	78°	2.4 ft	–
MayMay	86°	75°	5.17 in	12	8.7	81°	2.4 ft	–
JuneJun	89°	78°	6.35 in	20	7.1	83°	1.9 ft	–
JulyJul	90°	80°	3.48 in	19	8.3	85°	1.8 ft	1
AugustAug	91°	80°	5.80 in	21	7.4	86°	2.0 ft	4
SeptemberSep	89°	78°	6.41 in	21	6.5	85°	1.9 ft	6
OctoberOct	85°	76°	5.39 in	13	6.3	83°	2.8 ft	1
NovemberNov	80°	70°	1.67 in	5	6.8	79°	3.1 ft	1
DecemberDec	77°	66°	1.37 in	5	6.4	77°	3.0 ft	–

Month	Water	Waves	Cyclones
Jan	75°	3.2 ft	–
Feb	75°	2.8 ft	–
Mar	76°	2.8 ft	–
Apr	78°	2.4 ft	–
May	81°	2.4 ft	–
Jun	83°	1.9 ft	–
Jul	85°	1.8 ft	1
Aug	86°	2.0 ft	4
Sep	85°	1.9 ft	6
Oct	83°	2.8 ft	1
Nov	79°	3.1 ft	1
Dec	77°	3.0 ft	–

Days: rainy days in the month. Sun: hours a day.

A normal year brings 41.81 in of rain on about 134 days and about 2,700 hours of sunshine.

Cyclones: how many tropical cyclones (tropical storms, hurricanes and typhoons) passed within 93 mi in each month from 1996 to 2025, according to IBTrACS (NOAA).

1991–2020 averages. Highs, lows and rainfall: TerraClimate; rainy days (0.04 in or more): NASA POWER (MERRA-2); sunshine hours: estimated from solar radiation; water: NOAA OISST; waves (average height): ERA5, 2011–2020. Normals are not a forecast: any given year can turn out very different. Sources and licenses

Temperature

Now78 °Ffeels like 84 °F

Tomorrow77 / 82 °F

It's 78 °F now (feels like 84 °F). Today, 76 °F to 83 °F; tomorrow, 77 °F to 82 °F.

Chance of rain

Today 5%
Fri 30 13% 0.05 in
Sat 31 31%
Sun 1 62% 0.25 in
Mon 2 54% 0.20 in
Tue 3 22%
Wed 4 8%

Today the chance of rain reaches 5%. The next day with likely rain is Friday 30: 13% and 0.05 in.

Recent rain: last 24 hours, 0.00 in; last 3 days, 0.18 in; last 7 days, 1.04 in.

Humidity and dew point

Humidity93%

Dew point76 °F

Humidity is 93% now and the dew point is 76 °F. With a dew point this high, it feels muggy. The temperature is very close to the dew point: fog may form.

The dew point is the temperature at which the air becomes saturated: the higher it is, the heavier the air feels.

Visibility and fog

Now7.9 migood

Clouds26%

Visibility is good now (7.9 mi). No fog expected today.

UV index

Now0

Today's peak7high

Fri 30: 7 · Sat 31: 6 · Sun 1: 5

Index	Level	What to do
0–2	low	No special protection needed.
3–5	moderate	Hat, sunglasses and sunscreen around midday.
6–7	high	Sunscreen, hat and shade between 12 and 4 pm.
8–10	very high	Avoid the midday sun; reflection off the water adds to it.
11+	extreme	Avoid the sun between 11 am and 5 pm; protect yourself even if it is cloudy.

Reflection off water and sand adds radiation: protect yourself more on a boat or at the beach.

Barometric pressure

↗ Rising · now Anglers say fish bite less for a while
→ Steady Anglers expect normal activity
↘ Falling Anglers say fish feed more before the change

29.8029.9030.00 29.99

Rising now (+0.04 inHg in 3 hours). Over the next 48 hours: +0.06 inHg. Rising pressure: anglers say fish bite less for a while. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityGood · 30

Saharan dustNo

Previous days

The weather over the last 30 days, as the models analyzed it. Tap a day to see it hour by hour.

Day	Sky	Low / high	Rain	Max wind
Wed 28	Light drizzle	78 / 83 °F	0.13 in	22 mph NE
Tue 27	Light drizzle	77 / 83 °F	0.05 in	26 mph NNE
Mon 26	Light drizzle	77 / 82 °F	0.14 in	30 mph NNE
Sun 25	Drizzle	76 / 80 °F	0.19 in	26 mph NNE
Sat 24	Light drizzle	74 / 82 °F	0.09 in	21 mph NNE
Fri 23	Light showers	75 / 82 °F	0.45 in	23 mph NE
Thu 22	Drizzle	77 / 82 °F	0.12 in	17 mph NNE

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Overcast	76 / 83 °F	0	19 mph NNE
Tue 20	Light drizzle	78 / 83 °F	0.09 in	22 mph NE
Mon 19	Light drizzle	80 / 84 °F	0.13 in	25 mph ENE
Sun 18	Light showers	79 / 83 °F	0.54 in	27 mph NE
Sat 17	Light showers	80 / 87 °F	0.35 in	15 mph NE
Fri 16	Light drizzle	83 / 86 °F	0.09 in	13 mph ESE
Thu 15	Drizzle	82 / 85 °F	0.15 in	17 mph ESE
Wed 14	Light drizzle	82 / 85 °F	0.15 in	18 mph ENE
Tue 13	Drizzle	80 / 85 °F	0.26 in	18 mph ENE
Mon 12	Light drizzle	84 / 86 °F	0.02 in	12 mph ENE
Sun 11	Drizzle	83 / 87 °F	0.11 in	16 mph SE
Sat 10	Light drizzle	83 / 86 °F	0.01 in	17 mph SSE
Fri 9	Light drizzle	84 / 86 °F	0.08 in	19 mph SSE
Thu 8	Light drizzle	81 / 86 °F	0.06 in	13 mph S
Wed 7	Light drizzle	83 / 85 °F	0.12 in	12 mph SSW
Tue 6	Light drizzle	84 / 86 °F	0.02 in	9 mph SE
Mon 5	Light drizzle	83 / 85 °F	0.02 in	14 mph ESE
Sun 4	Light drizzle	83 / 86 °F	0.04 in	19 mph ESE
Sat 3	Light drizzle	85 / 87 °F	0.01 in	21 mph ESE
Fri 2	Thunderstorm	83 / 86 °F	0.22 in	20 mph ESE
Thu 1	Thunderstorm	80 / 85 °F	0.70 in	22 mph E
Wed 30	Thunderstorm	75 / 85 °F	1.04 in	18 mph E
Tue 29	Showers	76 / 83 °F	0.70 in	29 mph E

These are the models at the start of each day (ECMWF and GFS; waves from Météo-France), not readings from a weather station: there can be differences at specific spots.

Questions about the weather in Key Colony BeachQuestions

What's the weather like today in Key Colony Beach?

Light drizzle, from 76 °F to 83 °F, with a moderate breeze from the northeast (13 mph) and a 5% chance of rain.

Will it rain tomorrow in Key Colony Beach?

On Friday 30 the chance of rain is 13% (0.05 in): light drizzle.

How warm will it be this week?

Between a low of 76 °F and a high of 83 °F; the warmest day, Thursday 29.

What's the UV index today?

It reaches 7 (high). Sunscreen, hat and shade between 12 and 4 pm.

Is the pressure rising or falling?

It's 29.92 inHg and rising: +0.05 inHg over the last 24 hours.

When is the best time to visit Key Colony Beach?

The best time to visit Key Colony Beach is from November to April: highs of 75 °F to 82 °F, about 5 rainy days a month and 7 hours of sunshine a day.

What is the weather like in Key Colony Beach in October?

In October, Key Colony Beach normally sees highs of 85 °F and lows of 76 °F, with about 13 rainy days (5.39 in for the month) and 6 hours of sunshine a day. The sea is around 83 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Key Colony Beach?

The warmest is August, with average highs of 91 °F, and the coldest January, with lows of 64 °F. The wettest is September (6.41 in) and the driest, March.

When is hurricane season in Key Colony Beach?

Hurricane season: from August to September, peaking in September. In the last 30 years (1996–2025), 13 tropical cyclones passed within 93 mi of Key Colony Beach, about 4 every 10 years; 5 of them with hurricane-force winds (74 mph or more). The most recent: Eta, in November 2020.

More about Key Colony Beach today

Weather near Key Colony Beach

Only places with a different forecast: spots a few miles apart share the same model cell and wouldn't add anything.

Learn more

Weather: Open-Meteo, CC BY 4.0, with the best model for each spot and lead time (NOAA HRRR and NBM in the U.S., Météo-France AROME, DWD ICON-EU, ECMWF IFS and NOAA GFS); ECMWF grid point 2.3 mi away. The comparison also uses ICON (DWD), AIFS (ECMWF) and ARPEGE (Météo-France). Outlook: ECMWF 46-day and SEAS5. Chance of rain from ensemble models (ECMWF, GEFS and NBM). UV, air quality and pollen: CAMS (Copernicus).

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 8:01 am (local time).

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