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

Weather in Devon, Pennsylvania

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

Devon, PA
Sunday, May 17 at 4:57 AM
66
°
Partly Cloudy
Feels like
63°
Humidity
67%
Wind
10 mph
Sunrise
5:44 AM
Sunset
8:12 PM
Devon, PA
Hour by hour · 24h
50°
12a
50°
1a
51°
2a
49°
3a
50°
4a
49°
5a
49°
6a
50°
7a
51°
8a
52°
9a
55°
10a
58°
11a
60°
12p
62°
1p
62°
2p
62°
3p
61°
4p
63°
5p
64°
6p
63°
7p
61°
8p
58°
9p
56°
10p
54°
11p
L 49°H 64°
Devon, PA
7-day forecast
  1. Today
    May 17
    Overcast
    87°64°
  2. Monday
    May 18
    Light Showers
    93°68°
  3. Tuesday
    May 19
    Drizzle
    90°66°
  4. Wednesday
    May 20
    Showers
    72%
    87°60°
  5. Thursday
    May 21
    Overcast
    26%
    72°51°
  6. Friday
    May 22
    Drizzle
    30%
    61°48°
  7. Saturday
    May 23
    Light Drizzle
    37%
    56°48°
Devon, PA
Anemometer · 24h winds · from true
NESW
From · True
SW
217° · steady
Direction
SW
217°
Sustained
10
mph
Gust
18
mph
Peak 24h
24
avg 9
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 9 · pk 24 @ 8:00p
−24h−18h−12h−6hnow
Light breeze holding from the sw.
Devon, PA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
995.1
-0.2 mb in 3h · rising · 29.39 inHg
Now
995.1
mb
3h
-0.2
mb
12h
-1.8
mb
24h
-4.2
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 9951002
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Devon, PA
Air quality
91
AQI
Moderate
PM 2.5
10.6 μg/m³
PM 10
10.8 μg/m³
NO₂
7.9 μg/m³
Ozone
98.0 μg/m³
UV Index
0.0 Low
Devon, PA
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
9:16 AM
Sunrise
5:44 AM
Daylight
14h 28m
Sunset
8:12 PM
Civil dusk
12:42 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Devon, PA
The moon
New Moon
0% illuminated
Moonrise
9:49 AM
Moonset
12:38 AM
In sign
♊︎ Gemini
Devon, PA
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 →

Devon at a glance

  • Today vs. normal: 6°F below the seasonal normal for this latitude
  • Last frost: April 16 (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.

ZIP codes in Devon

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.