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Dewey Beach, Delaware Weather

Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →

Dewey Beach weather forecast — hour by hour, 7-day outlook, NOAA radar

Dewey Beach, DE
Sunday, July 5 at 1:15 AM
74
°
Overcast
Feels like
77°
Humidity
78%
Wind
10 mph
Sunrise
1:41 AM
Sunset
4:28 PM
Dewey Beach, DE
Hour by hour · 24h
24-Hour ForecastDewey Beach, DE: 24-hour forecast. Temperatures range from 73 to 81 degrees Fahrenheit with a 29% chance of precipitation at 1 AM.
L 73°H 81°
Dewey Beach, DE
7-day forecast
  1. Today
    Jul 5
    Drizzle
    32%
    0.03″
    81°73°—
  2. Monday
    Jul 6
    Light Rain
    55%
    0.07″
    81°74°0°
  3. Tuesday
    Jul 7
    Light Showers
    69%
    —
    78°70°-3°
  4. Wednesday
    Jul 8
    Light Drizzle
    33%
    —
    74°68°-4°
  5. Thursday
    Jul 9
    Light Drizzle
    16%
    —
    83°67°+9°
  6. Friday
    Jul 10
    Light Drizzle
    34%
    —
    95°72°+12°
  7. Saturday
    Jul 11
    Light Drizzle
    26%
    0.01″
    79°70°-16°
Dewey Beach, DE
Next 24 hours · Mild now
71°77°83°12a6a12p6pnow 74°high 81°low 73°PRECIP %
Dewey Beach, DE
Anemometer · 24h winds · from true
NESW
From · True
SSE
165° · backing 87°
Direction
SSE
165°
Sustained
10
mph
Gust
12
mph
Peak 24h
29
avg 7
Beaufort · 3 · GENTLE BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 7 · pk 29 @ 11:00p
0102030MPHB1B2B3B4B5B6-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 255SUSTGUST
−24h−18h−12h−6hnow
Light breeze backing 87° from the sse.
Dewey Beach, DE
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1012.3
-0.9 mb in 3h · falling · 29.89 inHg
Now
1012.3
mb
3h
-0.9
mb
12h
-1.7
mb
24h
-1.7
mb
Regime · CHANGE
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 1011–1015
9951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW1015.01010.81012.2
−24h−18h−12h−6hnow
Pressure slipping through the change line — wetter air on the way.
Dewey Beach, DE
Air quality
65
AQI
Moderate
↓-92 in 6h

AQI 65 (Moderate), driven by PM2.5. AQI down 92 over the last 6 hours — air quality is improving sharply. PM2.5 at 10.5 µg/m³, PM10 at 11.6 µg/m³ — typical background levels with no transport signature.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5DRIVERGood
10.5μg/m³
PM 10Good
12μg/m³
NO₂Good
9μg/m³
OzoneModerate
84μg/m³
UV IndexLow
0.0

What's driving it

Ozone × UV × Sky

Ozone at AQI 40. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.

Present
AQI 40
UV peak
3.3 at 1 PM
Sky at peak
overcast
Projected peak
AQI 9

PM × Wind × Precip

PM2.5 at 10.5 µg/m³, PM10 at 11.6 µg/m³ — typical background levels with no transport signature.

PM2.5/PM10
0.91
Wind
breezy
Recent rain
0h in last 6h
Pattern
background

Trends

Seven days of AQI and PM2.5.

Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).

7-DAY AQI TREND50100SUNMONTUEWEDTHUFRISATSUN7-DAY PM2.5 TREND · μg/m³300
Dewey Beach, DE
Sky cover · visibility · 24h
Cloud cover
100%
OVERCAST
100%0%−24h−18h−12h−6hnow
Visibility
42.6mi
UNLIMITED
121 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
05:15 UTC · Dewey Beach, DE · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
05:15 UTC · Dewey Beach, DE · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Dewey Beach, DE
Satellite · infrared · animated
Dewey Beach, DE
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Dewey Beach, DE
Almanac · Sunday, July 5
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:10 AM
Sunrise
1:41 AM
Daylight
14h 47m
Sunset
4:28 PM
Civil dusk
9:01 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Dewey Beach, DE
The moon
Waning Gibbous
76% illuminated
Moonrise
11:16 PM
Moonset
11:10 AM
In sign
♓︎ Pisces
Dewey Beach, DE
Microseason
Jul 1–5

Cicadas claim the afternoon

fish
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Dewey Beach at a glance

  • Today vs. normal: 74°F — typical for the season
  • Last frost: April 8 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

15-Day Forecast — Dewey Beach

  1. Sun81°73°32%
  2. Mon81°74°55%
  3. Tue78°70°69%
  4. Wed74°68°33%
  5. Thu83°67°16%
  6. Fri95°72°34%
  7. Sat79°70°26%
  8. Sun76°70°16%
  9. Mon78°68°13%
  10. Tue81°64°10%
  11. Wed89°67°24%
  12. Thu82°70°26%
  13. Fri81°72°23%
  14. Sat84°71°34%
  15. Sun91°71°52%

Forecast data from Open-Meteo (CC BY 4.0).

Right now in the garden

Peak growing season

As of July 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

SPC Convective Outlook

Storm Prediction Center — Dewey Beach

SPC has placed Dewey Beach in the Slight Risk category for severe thunderstorms today.

  • TODAYSLGTSlight Risk
  • TOMORROWSLGTSlight Risk
  • DAY 3TSTMGeneral Thunderstorms

Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.

Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.

All cities in Delaware →

Salisbury, MD weather →

ZIP codes in Dewey Beach

  • 19971

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.