Weather in St. Marys

14-day forecast · updated today, Wednesday, October 28, at 10:48 pm (EDT)

Now · clear 69 °F

Feels like: 70 °F
Low / high: 60 / 76 °F
Rain: 6%
Wind: 11 mph NE

→ 30.12 inHg · steady

Today in St. Marys: overcast, 60 °F to 76 °F, with a 6% chance of rain and a gentle breeze from the northeast (11 mph). Tomorrow, partly cloudy, 68 °F to 76 °F and a 2% chance of rain. The warmest day of the week is Thursday 29, at 76 °F. Next likely rain: Sunday 1 (53%).

Measured now at the airport

Fernandina Beach Muni (KFHB), 9.5 mi away · 13 min ago

Visibility7.0 mi

WeatherMist

Temperature70 °F

Wind13 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

76° 60°
Today
76° 68°
Thu 29
75° 67°
Fri 30
76° 68°
Sat 31
72° 67°
Sun 1
72° 65°
Mon 2
74° 63°
Tue 3
76° 64°
Wed 4
75° 62°
Thu 5
73° 57°
Fri 6
71° 54°
Sat 7
71° 54°
Sun 8
67° 58°
Mon 9
68° 59°
Tue 10

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 28	Overcast	60 / 76 °F	6%	17 mph NNE	7.2 ft	11:28 am · 11:41 pm	HRRR
Thu 29	Partly cloudy	68 / 76 °F	2%	15 mph NNE	7.2 ft	12:30 pm	HRRR + NBM
Fri 30	Overcast	67 / 75 °F	3%	13 mph NNE	5.8 ft	12:43 am · 1:32 pm	NBM
Sat 31	Drizzle	68 / 76 °F	19% · 0.01 in	12 mph NE	5.8 ft	1:46 am · 2:32 pm	NBM
Sun 1	Light drizzle	67 / 72 °F	53% · 2.59 in	13 mph ENE	6.1 ft	1:49 am · 2:33 pm	NBM
Mon 2	Light drizzle	65 / 72 °F	50% · 0.72 in	13 mph NE	6.4 ft	2:52 am · 3:33 pm	NBM
Tue 3	Light drizzle	63 / 74 °F	15% · 0.06 in	11 mph NE	5.6 ft	3:55 am · 4:30 pm	NBM
Wed 4	Mainly clear	64 / 76 °F	15%	10 mph E	5.6 ft	4:54 am · 5:23 pm	NBM
Thu 5	Light drizzle	62 / 75 °F	21% · 0.05 in	9 mph S	5.0 ft	5:47 am · 6:10 pm	NBM
Fri 6	Light rain	57 / 73 °F	10% · 0.02 in	7 mph WSW	4.0 ft	6:35 am · 6:52 pm	NBM
Sat 7	Light drizzle	54 / 71 °F	5% · 0.02 in	6 mph NNW	3.2 ft	7:19 am · 7:31 pm	NBM
Sun 8	Light drizzle	54 / 71 °F	10% · 0.02 in	9 mph NNW	3.1 ft	7:59 am · 8:09 pm	NBM + ECMWF
Mon 9	Light drizzle	58 / 67 °F	9% · 0.01 in	9 mph N	4.7 ft	8:39 am · 8:47 pm	ECMWF
Tue 10	Light drizzle	59 / 68 °F	11% · 0.04 in	10 mph N	4.1 ft	9:18 am · 9:27 pm	ECMWF

Each hour comes from the best model for this spot: HRRR until Thursday 29 5:00 pm; then NBM until Sunday 8 2:00 pm; then ECMWF until Thursday 12 10:00 am; 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	Clear	Clear	Partly cloudy	Partly cloudy	Clear sky	Clear sky	Clear sky	Clear
Temperature	65°	65°	63°	63°	74°	75°	72°	69°
Chance of rain	0%	0%	0%	0%	0%	0%	0%	0%
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)	8 NNE	8 NNE	8 N	10 N	16 NNE	16 NNE	13 NNE	10 NE
Humidity	69%	82%	84%	89%	76%	78%	80%	90%
UV	0	0	0	1	5	4	0	0
Model	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR

Do the models agree?

High confidence

The models agree for the next few days: the forecast is fairly solid.

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	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	75°	75°	74°	76°	76°	76°	78°
AIFS	75°	74°	76°	75°	74°	74°	77°
GFS	77°	80°	79°	77°	80°	75°	82°
ICON	73°	74°	74°	75°	75°	73°	76°
HRRR	76°	76°	—	—	—	—	—
NBM	74°	74°	75°	76°	72°	72°	74°
Confidence	high	high	high	high	high	high	high

Do the models agree? · Rain
Rain	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	0	0	0	0.11 in	0.07 in	0.04 in	0.01 in
AIFS	0	0.05 in	0.04 in	0.28 in	0.15 in	0.14 in	0.13 in
GFS	0.00 in	0	0	0.20 in	0.34 in	2.17 in	0.01 in
ICON	0	0	0	0.11 in	0.11 in	0.91 in	0
HRRR	0	0.03 in	—	—	—	—	—
NBM	0	0	0	0.01 in	2.59 in	0.72 in	0.06 in
Confidence	high	high	high	high	medium	medium	medium

Do the models agree? · Wind
Wind (mph)	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	1734	1533	1328	1229	1224	1530	1226
AIFS	18	15	13	14	15	17	16
GFS	1529	1425	1223	1022	1322	1023	1024
ICON	1530	1328	1122	1021	1121	1530	614
HRRR	1729	1529	—	—	—	—	—
NBM	1727	1525	1320	1221	1322	1321	1119
Confidence	high	high	high	high	high	high	high

Chance of rain from the ensemble models

Model	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF (51 scenarios)	8%	4%	8%	32%	41%	45%	6%
GFS (GEFS, 31 scenarios)	0%	42%	13%	61%	81%	52%	23%
NBM (NOAA)	6%	2%	3%	19%	53%	50%	15%
Thunderstorm (NBM)	0%	0%	3%	13%	24%	24%	7%

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 and wetter.

Next 6 weeks

When	TemperatureTemp.	Rain	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Above +4.7 °F	Well above +113%	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit below −1.8 °F	A bit above +35%	71° / 55°
Nov 16 – Nov 22Nov 16–Nov 22	Normal +0.4 °F	A bit above +41%	71° / 56°
Nov 23 – Nov 29Nov 23–Nov 29	Normal +0.2 °F	Well above +130%	69° / 56°
Nov 30 – Dec 6Nov 30–Dec 6	Normal −0.5 °F	Well above +151%	66° / 54°

Coming months

When	TemperatureTemp.	Rain
November	Normal +0.7 °F	Above +97%
December	Normal −0.7 °F	Above +66%
January	A bit below −1.3 °F	Above +78%
February	A bit below −1.4 °F	Above +89%
March	A bit below −1.1 °F	Above +66%

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. The long-range sea temperature isn't usable at this spot (the model's grid cell falls on land).

St. Marys climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit St. Marys is from March to May and from October to November: highs of 72 °F to 84 °F, about 7 rainy days a month and 7 hours of sunshine a day.

Hurricane season: from June to October, peaking in August. In the last 30 years (1996–2025), 17 tropical cyclones passed within 93 mi of St. Marys, about 6 every 10 years; 3 of them with hurricane-force winds (74 mph or more). The most recent: Debby, in August 2024.

63° 43°

JanJ
67° 46°

FebF
73° 52°

MarM
78° 58°

AprA
84° 65°

MayM
88° 72°

JunJ
91° 74°

JulJ
89° 74°

AugA
86° 72°

SepS
79° 63°

OctO
72° 53°

NovN
65° 47°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	63°	43°	3.25 in	8	5.1	60°	2.0 ft	–
FebruaryFeb	67°	46°	3.04 in	7	5.3	59°	2.0 ft	–
MarchMar	73°	52°	3.46 in	7	6.8	62°	2.1 ft	–
AprilApr	78°	58°	2.80 in	7	7.9	68°	2.1 ft	–
MayMay	84°	65°	3.15 in	9	8.9	75°	2.0 ft	2
JuneJun	88°	72°	6.22 in	18	7.3	80°	1.6 ft	3
JulyJul	91°	74°	5.84 in	18	8.1	83°	1.6 ft	1
AugustAug	89°	74°	6.29 in	19	7.1	83°	1.7 ft	4
SeptemberSep	86°	72°	7.31 in	13	5.8	82°	2.3 ft	3
OctoberOct	79°	63°	3.91 in	7	5.9	77°	2.4 ft	3
NovemberNov	72°	53°	1.93 in	6	5.6	69°	2.5 ft	1
DecemberDec	65°	47°	2.85 in	7	4.5	63°	2.1 ft	–

Month	Water	Waves	Cyclones
Jan	60°	2.0 ft	–
Feb	59°	2.0 ft	–
Mar	62°	2.1 ft	–
Apr	68°	2.1 ft	–
May	75°	2.0 ft	2
Jun	80°	1.6 ft	3
Jul	83°	1.6 ft	1
Aug	83°	1.7 ft	4
Sep	82°	2.3 ft	3
Oct	77°	2.4 ft	3
Nov	69°	2.5 ft	1
Dec	63°	2.1 ft	–

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

A normal year brings 50.04 in of rain on about 125 days and about 2,400 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

Now69 °Ffeels like 70 °F

Tomorrow68 / 76 °F

It's 69 °F now (feels like 70 °F). Today, 60 °F to 76 °F; tomorrow, 68 °F to 76 °F.

Chance of rain

Today 6%
Thu 29 2%
Fri 30 3%
Sat 31 19% 0.01 in
Sun 1 53% 2.59 in
Mon 2 50% 0.72 in
Tue 3 15% 0.06 in

Today the chance of rain reaches 6%. The next day with likely rain is Sunday 1: 53% and 2.59 in.

Recent rain: last 24 hours, 0.00 in; last 3 days, 0.00 in; last 7 days, 0.15 in.

Humidity and dew point

Humidity90%

Dew point65 °F

Humidity is 90% now and the dew point is 65 °F. 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

Now8.6 migood

Clouds5%

Visibility is good now (8.6 mi). No fog expected today.

UV index

Now0

Today's peak6moderate

Thu 29: 2 · Fri 30: 6 · Sat 31: 3

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

30.1030.20 30.06

Steady now (+0.01 inHg in 3 hours). Over the next 48 hours: +0.04 inHg. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityModerate · 54

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
Tue 27	Partly cloudy	64 / 74 °F	0	15 mph NNE
Mon 26	Mainly clear	66 / 72 °F	0	20 mph NNE
Sun 25	Light drizzle	66 / 71 °F	0.06 in	21 mph NNE
Sat 24	Light drizzle	59 / 71 °F	0.09 in	21 mph NNE
Fri 23	Clear sky	57 / 72 °F	0	13 mph NNE
Thu 22	Clear sky	54 / 73 °F	0	10 mph N
Wed 21	Clear sky	57 / 74 °F	0	11 mph N

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Tue 20	Clear sky	55 / 72 °F	0	10 mph N
Mon 19	Overcast	56 / 68 °F	0	15 mph NNE
Sun 18	Light drizzle	63 / 66 °F	0.01 in	20 mph NNE
Sat 17	Overcast	65 / 75 °F	0	17 mph NNW
Fri 16	Partly cloudy	67 / 86 °F	0	6 mph SSW
Thu 15	Overcast	66 / 84 °F	0	7 mph SE
Wed 14	Overcast	66 / 84 °F	0	6 mph ENE
Tue 13	Clear sky	67 / 85 °F	0	7 mph NNE
Mon 12	Mainly clear	65 / 85 °F	0	11 mph WNW
Sun 11	Light drizzle	71 / 83 °F	0.08 in	12 mph WSW
Sat 10	Thunderstorm	76 / 85 °F	0.64 in	16 mph SSE
Fri 9	Rain	74 / 79 °F	0.76 in	19 mph ENE
Thu 8	Drizzle	74 / 78 °F	0.26 in	12 mph NE
Wed 7	Light rain	73 / 77 °F	0.77 in	15 mph NE
Tue 6	Rain	71 / 76 °F	1.48 in	13 mph NNE
Mon 5	Showers	74 / 77 °F	0.80 in	9 mph N
Sun 4	Thunderstorm	74 / 79 °F	0.60 in	6 mph WSW
Sat 3	Thunderstorm with hail	74 / 82 °F	1.98 in	6 mph ESE
Fri 2	Thunderstorm	76 / 83 °F	1.45 in	10 mph SE
Thu 1	Light drizzle	74 / 83 °F	0.08 in	7 mph E
Wed 30	Light drizzle	69 / 84 °F	0.06 in	7 mph ENE
Tue 29	Overcast	64 / 87 °F	0	6 mph S
Mon 28	Partly cloudy	64 / 88 °F	0	9 mph SSW

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 St. MarysQuestions

What's the weather like today in St. Marys?

Overcast, from 60 °F to 76 °F, with a gentle breeze from the northeast (11 mph) and a 6% chance of rain.

Will it rain tomorrow in St. Marys?

On Thursday 29 the chance of rain is 2% (0.00 in): partly cloudy.

How warm will it be this week?

Between a low of 60 °F and a high of 76 °F; the warmest day, Thursday 29.

What's the UV index today?

It reaches 6 (moderate). Hat, sunglasses and sunscreen around midday.

Is the pressure rising or falling?

It's 30.12 inHg and steady: −0.06 inHg over the last 24 hours.

When is the best time to visit St. Marys?

The best time to visit St. Marys is from March to May and from October to November: highs of 72 °F to 84 °F, about 7 rainy days a month and 7 hours of sunshine a day.

What is the weather like in St. Marys in October?

In October, St. Marys normally sees highs of 79 °F and lows of 63 °F, with about 7 rainy days (3.91 in for the month) and 6 hours of sunshine a day. The sea is around 77 °F. These are 1991–2020 averages.

What are the warmest and wettest months in St. Marys?

The warmest is July, with average highs of 91 °F, and the coldest January, with lows of 43 °F. The wettest is September (7.31 in) and the driest, November.

When is hurricane season in St. Marys?

Hurricane season: from June to October, peaking in August. In the last 30 years (1996–2025), 17 tropical cyclones passed within 93 mi of St. Marys, about 6 every 10 years; 3 of them with hurricane-force winds (74 mph or more). The most recent: Debby, in August 2024.

More about St. Marys today

Weather near St. Marys

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 3.1 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 10:48 pm (local time).

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