Weather in Dewey Beach

14-day forecast · updated today, Thursday, October 29, at 6:04 am (EDT)

Now · clear 48 °F

Feels like: 45 °F
Low / high: 48 / 66 °F
Rain: 5%
Wind: 5 mph NNW

→ 30.29 inHg · steady

Today in Dewey Beach: mainly clear, 48 °F to 66 °F, with a 5% chance of rain and a light breeze from the north-northwest (5 mph). Tomorrow, partly cloudy, 54 °F to 72 °F and a 0% chance of rain. The warmest day of the week is Friday 30, at 72 °F. Next likely rain: Thursday 5 (34%).

Temperatures for the next 14 days

66° 48°
Today
72° 54°
Fri 30
58° 51°
Sat 31
62° 51°
Sun 1
66° 53°
Mon 2
68° 56°
Tue 3
70° 60°
Wed 4
69° 61°
Thu 5
66° 56°
Fri 6
61° 53°
Sat 7
59° 51°
Sun 8
63° 47°
Mon 9
64° 53°
Tue 10
62° 50°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Mainly clear	48 / 66 °F	5%	10 mph SW	1.8 ft	10:43 am · 11:02 pm	HRRR
Fri 30	Partly cloudy	54 / 72 °F	0%	11 mph WNW	1.7 ft	11:38 am · 11:58 pm	HRRR + NBM
Sat 31	Overcast	51 / 58 °F	1%	13 mph N	1.8 ft	12:37 pm	NBM
Sun 1	Overcast	51 / 62 °F	1%	6 mph E	1.2 ft	1:00 am · 12:41 pm	NBM
Mon 2	Overcast	53 / 66 °F	7%	6 mph S	1.0 ft	1:09 am · 1:48 pm	NBM
Tue 3	Overcast	56 / 68 °F	7%	9 mph E	1.0 ft	2:21 am · 2:55 pm	NBM
Wed 4	Overcast	60 / 70 °F	7%	12 mph ESE	2.4 ft	3:28 am · 3:54 pm	NBM
Thu 5	Drizzle	61 / 69 °F	34% · 0.17 in	13 mph SE	2.9 ft	4:24 am · 4:44 pm	NBM
Fri 6	Light rain	56 / 66 °F	34% · 0.32 in	13 mph WNW	8.1 ft	5:11 am · 5:30 pm	NBM
Sat 7	Light drizzle	53 / 61 °F	24% · 0.13 in	15 mph NW	7.9 ft	5:54 am · 6:11 pm	NBM
Sun 8	Clear sky	51 / 59 °F	15% · 0.08 in	13 mph NW	4.4 ft	6:34 am · 6:52 pm	NBM
Mon 9	Mainly clear	47 / 63 °F	18%	11 mph WSW	2.5 ft	7:14 am · 7:32 pm	NBM + ECMWF
Tue 10	Drizzle	53 / 64 °F	17% · 0.20 in	13 mph SSW	2.8 ft	7:55 am · 8:12 pm	ECMWF
Wed 11	Drizzle	50 / 62 °F	16% · 0.06 in	10 mph WNW	2.4 ft	8:36 am · 8:53 pm	ECMWF

Each hour comes from the best model for this spot: HRRR until Friday 30 1:00 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	Mainly clear	Clear	Clear	Clear sky	Clear sky	Clear sky	Clear sky	Clear
Temperature	55°	52°	48°	55°	65°	63°	59°	57°
Chance of rain	0%	0%	1%	5%	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)	5 SE	2 NNW	5 NNW	4 NNW	4 NW	6 E	6 SE	7 SW
Humidity	76%	73%	84%	93%	72%	78%	90%	84%
UV	0	0	0	1	4	2	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	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	71°	73°	59°	62°	67°	71°	70°
AIFS	67°	72°	59°	60°	63°	66°	69°
GFS	71°	72°	56°	61°	64°	65°	66°
ICON	66°	72°	58°	59°	67°	69°	68°
HRRR	66°	70°	—	—	—	—	—
NBM	67°	72°	58°	62°	66°	68°	70°
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	0	0	0	0	0	0
AIFS	0	0	0	0	0	0	0
GFS	0	0	0	0	0	0	0
ICON	0	0	0	0	0	0	0
HRRR	0	0	—	—	—	—	—
NBM	0	0	0	0	0	0	0
Confidence	high	high	high	high	high	high	high

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	510	1022	1022	521	518	621	1328
AIFS	7	11	12	5	5	6	9
GFS	611	1527	1318	611	77	712	1123
ICON	612	1222	1427	512	512	411	613
HRRR	1015	1629	—	—	—	—	—
NBM	59	1118	1319	68	610	913	1218
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)	0%	0%	0%	0%	5%	12%	14%
GFS (GEFS, 31 scenarios)	0%	0%	0%	0%	7%	10%	13%
NBM (NOAA)	5%	0%	1%	1%	7%	7%	7%
Thunderstorm (NBM)	0%	0%	0%	1%	1%	1%	1%

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: a bit warmer, a bit wetter and a slightly warmer sea.

Next 6 weeks

When	TemperatureTemp.	Rain	Sea	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Above +5.2 °F	Above +55%	Normal +0.2 °F	—
Nov 9 – Nov 15Nov 9–Nov 15	Normal +0.5 °F	A bit above +27%	A bit above +0.7 °F	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +2.0 °F	Normal	A bit above +0.9 °F	56° / 50°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +2.3 °F	A bit above +41%	A bit above +1.1 °F	54° / 48°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +1.8 °F	A bit above +47%	A bit above +0.9 °F	52° / 46°

Coming months

When	TemperatureTemp.	Rain	Sea
November	A bit above +1.3 °F	A bit above +36%	Normal +0.2 °F
December	A bit above +1.8 °F	A bit above +26%	A bit above +0.5 °F
January	A bit above +2.5 °F	A bit above +36%	A bit above +1.1 °F
February	A bit above +1.6 °F	A bit above +42%	A bit above +1.1 °F
March	A bit above +1.4 °F	A bit above +29%	Normal +0.4 °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.

Dewey Beach climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Dewey Beach is from May to September: highs of 71 °F to 85 °F, about 11 rainy days a month and 7 hours of sunshine a day.

Hurricane season: from July to September. In the last 30 years (1996–2025), 10 tropical cyclones passed within 93 mi of Dewey Beach, about 3 every 10 years; 2 of them with hurricane-force winds (74 mph or more). The most recent: Elsa, in July 2021.

44° 29°

JanJ
46° 30°

FebF
53° 36°

MarM
62° 45°

AprA
71° 54°

MayM
80° 64°

JunJ
85° 69°

JulJ
83° 68°

AugA
78° 62°

SepS
69° 52°

OctO
58° 42°

NovN
49° 34°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	44°	29°	3.34 in	8	4.1	43°	2.8 ft	–
FebruaryFeb	46°	30°	3.10 in	8	5.2	40°	2.7 ft	–
MarchMar	53°	36°	4.19 in	9	5.8	42°	3.0 ft	–
AprilApr	62°	45°	3.53 in	8	6.4	48°	2.9 ft	–
MayMay	71°	54°	3.74 in	10	7.3	57°	2.5 ft	–
JuneJun	80°	64°	3.87 in	11	7.6	67°	2.1 ft	1
JulyJul	85°	69°	3.65 in	12	7.8	74°	2.0 ft	3
AugustAug	83°	68°	4.72 in	11	7.2	75°	2.1 ft	3
SeptemberSep	78°	62°	3.62 in	9	6.0	72°	3.1 ft	2
OctoberOct	69°	52°	4.34 in	7	5.3	66°	3.1 ft	1
NovemberNov	58°	42°	3.18 in	7	4.6	57°	3.0 ft	–
DecemberDec	49°	34°	3.91 in	9	3.8	49°	2.7 ft	–

Month	Water	Waves	Cyclones
Jan	43°	2.8 ft	–
Feb	40°	2.7 ft	–
Mar	42°	3.0 ft	–
Apr	48°	2.9 ft	–
May	57°	2.5 ft	–
Jun	67°	2.1 ft	1
Jul	74°	2.0 ft	3
Aug	75°	2.1 ft	3
Sep	72°	3.1 ft	2
Oct	66°	3.1 ft	1
Nov	57°	3.0 ft	–
Dec	49°	2.7 ft	–

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

A normal year brings 45.19 in of rain on about 107 days and about 2,150 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

Now48 °Ffeels like 45 °F

Tomorrow54 / 72 °F

It's 48 °F now (feels like 45 °F). Today, 48 °F to 66 °F; tomorrow, 54 °F to 72 °F.

Chance of rain

Today 5%
Fri 30 0%
Sat 31 1%
Sun 1 1%
Mon 2 7%
Tue 3 7%
Wed 4 7%

Today the chance of rain reaches 5%. The next day with likely rain is Thursday 5: 34% and 0.17 in.

No rain in the last 7 days.

Humidity and dew point

Humidity84%

Dew point44 °F

Humidity is 84% now and the dew point is 44 °F.

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

Visibility and fog

Now8.4 migood

Clouds7%

Visibility is good now (8.4 mi). No fog expected today.

UV index

Now0

Today's peak4moderate

Fri 30: 4 · Sat 31: 4 · Sun 1: 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

30.2030.40 30.09

Steady now (−0.03 inHg in 3 hours). Over the next 48 hours: +0.07 inHg. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityGood · 39

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	Max wind
Wed 28	Overcast	52 / 67 °F	8 mph E
Tue 27	Partly cloudy	49 / 66 °F	9 mph NE
Mon 26	Clear sky	39 / 69 °F	9 mph W
Sun 25	Clear sky	46 / 64 °F	6 mph NNE
Sat 24	Overcast	48 / 63 °F	9 mph NE
Fri 23	Overcast	51 / 61 °F	11 mph NE
Thu 22	Overcast	47 / 66 °F	11 mph NNW

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Overcast	53 / 63 °F	0	15 mph N
Tue 20	Clear sky	52 / 68 °F	0	14 mph N
Mon 19	Clear sky	49 / 64 °F	0	14 mph NNE
Sun 18	Mainly clear	46 / 58 °F	0	16 mph NNE
Sat 17	Light rain	51 / 64 °F	0.63 in	18 mph N
Fri 16	Light drizzle	63 / 80 °F	0.13 in	12 mph SSW
Thu 15	Rain	62 / 70 °F	0.47 in	11 mph NE
Wed 14	Light drizzle	67 / 87 °F	0.01 in	11 mph WSW
Tue 13	Partly cloudy	56 / 80 °F	0	11 mph SW
Mon 12	Light rain	58 / 71 °F	0.30 in	14 mph NNW
Sun 11	Light rain	66 / 73 °F	0.71 in	16 mph ESE
Sat 10	Overcast	56 / 71 °F	0	11 mph E
Fri 9	Overcast	53 / 75 °F	0	6 mph WNW
Thu 8	Clear sky	56 / 78 °F	0	9 mph WSW
Wed 7	Clear sky	43 / 69 °F	0	9 mph SSW
Tue 6	Clear sky	49 / 63 °F	0	8 mph NNW
Mon 5	Overcast	57 / 73 °F	0	11 mph NW
Sun 4	Heavy drizzle	63 / 66 °F	0.39 in	11 mph NE
Sat 3	Rain	61 / 71 °F	0.76 in	13 mph NNE
Fri 2	Light drizzle	67 / 85 °F	0.04 in	10 mph SW
Thu 1	Overcast	62 / 83 °F	0	9 mph SSW
Wed 30	Overcast	58 / 76 °F	0	7 mph SSW
Tue 29	Light drizzle	62 / 73 °F	0.04 in	7 mph W

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 Dewey BeachQuestions

What's the weather like today in Dewey Beach?

Mainly clear, from 48 °F to 66 °F, with a light breeze from the north-northwest (5 mph) and a 5% chance of rain.

Will it rain tomorrow in Dewey Beach?

On Friday 30 the chance of rain is 0% (0.00 in): partly cloudy.

How warm will it be this week?

Between a low of 48 °F and a high of 72 °F; the warmest day, Friday 30.

What's the UV index today?

It reaches 4 (moderate). Hat, sunglasses and sunscreen around midday.

Is the pressure rising or falling?

It's 30.29 inHg and steady: −0.10 inHg over the last 24 hours.

When is the best time to visit Dewey Beach?

The best time to visit Dewey Beach is from May to September: highs of 71 °F to 85 °F, about 11 rainy days a month and 7 hours of sunshine a day.

What is the weather like in Dewey Beach in October?

In October, Dewey Beach normally sees highs of 69 °F and lows of 52 °F, with about 7 rainy days (4.34 in for the month) and 5 hours of sunshine a day. The sea is around 66 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Dewey Beach?

The warmest is July, with average highs of 85 °F, and the coldest January, with lows of 29 °F. The wettest is August (4.72 in) and the driest, February.

When is hurricane season in Dewey Beach?

Hurricane season: from July to September. In the last 30 years (1996–2025), 10 tropical cyclones passed within 93 mi of Dewey Beach, about 3 every 10 years; 2 of them with hurricane-force winds (74 mph or more). The most recent: Elsa, in July 2021.

More about Dewey Beach today

Weather near Dewey 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 10 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 6:04 am (local time).

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