Weather StoryAlmanac, microseasons, and the day's weather story.

Lewes, Delaware Weather

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

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

Lewes, DE
Saturday, July 4 at 10:27 PM
78
°
Overcast
Feels like
78°
Humidity
66%
Wind
15 mph
Sunrise
1:41 AM
Sunset
4:28 PM
Lewes, DE
Hour by hour · 24h
24-Hour ForecastLewes, DE: 24-hour forecast. Temperatures range from 74 to 90 degrees Fahrenheit.
L 74°H 90°
Lewes, DE
7-day forecast
  1. Today
    Jul 4
    Showers
    15%
    0.11″
    97°77°—
  2. Sunday
    Jul 5
    Rain
    15%
    0.17″
    90°74°-7°
  3. Monday
    Jul 6
    Drizzle
    75%
    0.06″
    84°74°-6°
  4. Tuesday
    Jul 7
    Light Showers
    75%
    —
    78°70°-6°
  5. Wednesday
    Jul 8
    Light Drizzle
    35%
    —
    74°68°-4°
  6. Thursday
    Jul 9
    Light Drizzle
    10%
    —
    83°67°+9°
  7. Friday
    Jul 10
    Light Drizzle
    35%
    —
    95°72°+12°
Lewes, DE
Next 24 hours · Mild now
HOT 90°70°82°94°6p12a6a12pnow 78°high 90°low 74°PRECIP %
Lewes, DE
Anemometer · 24h winds · from true
NESW
From · True
W
266° · veering 25°
Direction
W
266°
Sustained
15
mph
Gust
24
mph
Peak 24h
28
avg 6
Beaufort · 4 · MOD 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 6 · pk 28 @ 10:00p
010203040MPHB1B2B3B4B5B6B7B8-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 396SUSTGUST
−24h−18h−12h−6hnow
Sustained 15 mph with gusts pulsing to 24 — flags snap, branches bend.
Lewes, DE
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1013.6
+2.6 mb in 3h · rising rapidly · 29.93 inHg
Now
1013.6
mb
3h
+2.6
mb
12h
-0.7
mb
24h
-0.7
mb
Regime · CHANGE
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 1010–1014
9951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW1014.21010.41013.5
−24h−18h−12h−6hnow
Pressure climbing through the change line — drier air pushing in.
Lewes, DE
Air quality
117
AQI
Unhealthy for Sensitive Groups
↓-25 in 6h

AQI 117 (Unhealthy for Sensitive Groups), driven by PM2.5. AQI down 25 over the last 6 hours — air quality is improving sharply. PM2.5 at 9.7 µg/m³, PM10 at 10.5 µg/m³ — typical background levels with no transport signature.

CAUTION Sensitive groups (children, elderly, respiratory conditions) should limit prolonged outdoor exertion.

PM 2.5DRIVERGood
9.7μg/m³
PM 10Good
11μg/m³
NO₂Good
6μg/m³
OzoneUnhealthy SG
104μg/m³
UV IndexLow
0.0

What's driving it

Ozone × UV × Sky

Ozone at AQI 49. Overcast through the UV peak window (cloud cover ~84%) — afternoon ozone should stay flat.

Present
AQI 49
UV peak
0.0 at 1 PM
Sky at peak
overcast
Projected peak
AQI 6

PM × Wind × Precip

PM2.5 at 9.7 µg/m³, PM10 at 10.5 µg/m³ — typical background levels with no transport signature.

PM2.5/PM10
0.92
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
Lewes, DE
Sky cover · visibility · 24h
Cloud cover
100%
OVERCAST
100%0%−24h−18h−12h−6hnow
Visibility
64.2mi
UNLIMITED
129 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
02:27 UTC · Lewes, 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
02:27 UTC · Lewes, DE · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Lewes, DE
Satellite · infrared · animated
Lewes, DE
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Lewes, DE
Almanac · Saturday, July 4
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.
Lewes, DE
The moon
Waning Gibbous
77% illuminated
Moonrise
11:16 PM
Moonset
11:10 AM
In sign
♓︎ Pisces
Lewes, DE
Microseason
Jul 1–5

Cicadas claim the afternoon

fish
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Lewes at a glance

  • Today vs. normal: 5°F above the seasonal normal for this latitude
  • Last frost: April 9 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP code: 19958

16-Day Forecast — Lewes

  1. Sat97°77°15%
  2. Sun90°74°15%
  3. Mon84°74°75%
  4. Tue78°70°75%
  5. Wed74°68°35%
  6. Thu83°67°10%
  7. Fri95°72°35%
  8. Sat79°70°35%
  9. Sun76°70°22%
  10. Mon78°68°16%
  11. Tue81°64°15%
  12. Wed89°67°31%
  13. Thu82°70°35%
  14. Fri81°72°23%
  15. Sat84°71°32%
  16. Sun91°71°44%

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 — Lewes

SPC has placed Lewes 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 →

Dover, DE weather →

ZIP codes in Lewes

  • 19958

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.