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

Weather in Wilmington, Delaware

Roses open along the stoops. Day 59 of spring. Read this microseason across nine climate regions →

Wilmington, DE
Sunday, May 17 at 3:48 AM
70
°
Clear
Feels like
67°
Humidity
49%
Wind
7 mph
Sunrise
5:46 AM
Sunset
8:10 PM
Wilmington, DE
Hour by hour · 24h
53°
11p
54°
12a
53°
1a
51°
2a
51°
3a
50°
4a
50°
5a
50°
6a
51°
7a
52°
8a
54°
9a
58°
10a
62°
11a
64°
12p
66°
1p
67°
2p
66°
3p
66°
4p
67°
5p
68°
6p
68°
7p
65°
8p
62°
9p
60°
10p
L 50°H 68°
Wilmington, DE
7-day forecast
  1. Today
    May 16
    Mostly Clear
    —
    82°50°
  2. Sunday
    May 17
    Overcast
    —
    90°63°
  3. Monday
    May 18
    Light Drizzle
    —
    97°65°
  4. Tuesday
    May 19
    Light Drizzle
    —
    92°68°
  5. Wednesday
    May 20
    Showers
    70%
    90°64°
  6. Thursday
    May 21
    Overcast
    45%
    74°55°
  7. Friday
    May 22
    Drizzle
    39%
    62°50°
Wilmington, DE
Next 24 hours · Cool now
46°59°72°12a6a12p6pnow 53°high 68°low 50°
Wilmington, DE
Anemometer · 24h winds · from true
NESW
From · True
SW
227° · backing 72°
Direction
SW
227°
Sustained
7
mph
Gust
14
mph
Peak 24h
20
avg 7
Beaufort · 2 · LIGHT 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 20 @ 12:00p
−24h−18h−12h−6hnow
Light breeze backing 72° from the sw.
Wilmington, DE
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1012.3
-0.2 mb in 3h · rising rapidly · 29.89 inHg
Now
1012.3
mb
3h
-0.2
mb
12h
-2.8
mb
24h
-4.9
mb
Regime · CHANGE
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 1012–1019
−24h−18h−12h−6hnow
Air sits at the threshold — small shifts decide the day.
Wilmington, DE
Air quality
94
AQI
Moderate
PM 2.5
10.7 μg/m³
PM 10
11.0 μg/m³
NO₂
5.6 μg/m³
Ozone
108.0 μg/m³
UV Index
0.0 Low
Wilmington, DE
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
9:17 AM
Sunrise
5:46 AM
Daylight
14h 24m
Sunset
8:10 PM
Civil dusk
12:42 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Wilmington, DE
The moon
New Moon
0% illuminated
Moonrise
9:51 AM
Moonset
12:37 AM
In sign
♊︎ Gemini
Wilmington, DE
Microseason · 28 of 72
May 16–20

Roses open along the stoops

plant
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Wilmington at a glance

  • Today vs. normal: 70°F — typical for the season
  • Last frost: April 14 (climatological average for this latitude)
  • Microseason: 28 of 72, May 16–20
  • Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.

Right now in the garden

Warm-season window is open

As of May 17, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.

All cities in Delaware →

ZIP codes in Wilmington

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.