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

Weather in Walnut Hill, Illinois

Roses open on the Piedmont edge. Day 59 of spring. Read this microseason across nine climate regions →

Walnut Hill, IL
Sunday, May 17 at 2:39 AM
67
°
Overcast
Feels like
70°
Humidity
90%
Wind
7 mph
Sunrise
5:43 AM
Sunset
8:01 PM
Walnut Hill, IL
Hour by hour · 24h
59°
9p
56°
10p
56°
11p
56°
12a
56°
1a
55°
2a
55°
3a
56°
4a
55°
5a
57°
6a
59°
7a
59°
8a
58°
9a
64°
10a
67°
11a
71°
12p
75°
1p
79°
2p
80°
3p
81°
4p
81°
5p
80°
6p
79°
7p
76°
8p
L 55°H 81°
Walnut Hill, IL
7-day forecast
  1. Today
    May 16
    Thunderstorm
    54%
    80°66°
  2. Sunday
    May 17
    Overcast
    86°65°
  3. Monday
    May 18
    Light Showers
    51%
    82°68°
  4. Tuesday
    May 19
    Showers
    78%
    82°61°
  5. Wednesday
    May 20
    Light Drizzle
    78%
    68°55°
  6. Thursday
    May 21
    Light Drizzle
    16%
    66°52°
  7. Friday
    May 22
    Light Drizzle
    18%
    67°54°
Walnut Hill, IL
Anemometer · 24h winds · from true
NESW
From · True
ESE
106° · backing 89°
Direction
ESE
106°
Sustained
7
mph
Gust
11
mph
Peak 24h
21
avg 6
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 6 · pk 21 @ 2:00p
−24h−18h−12h−6hnow
Light breeze backing 89° from the ese.
Walnut Hill, IL
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
991.8
+1.4 mb in 3h · rising rapidly · 29.29 inHg
Now
991.8
mb
3h
+1.4
mb
12h
-2.1
mb
24h
+1.9
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 990995
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Walnut Hill, IL
Air quality
37
AQI
Good
PM 2.5
4.4 μg/m³
PM 10
4.9 μg/m³
NO₂
4.5 μg/m³
Ozone
91.0 μg/m³
UV Index
0.0 Low
Walnut Hill, IL
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:15 AM
Sunrise
5:43 AM
Daylight
14h 18m
Sunset
8:01 PM
Civil dusk
1:32 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Walnut Hill, IL
The moon
New Moon
0% illuminated
Moonrise
10:51 AM
Moonset
1:29 AM
In sign
♊︎ Gemini
Walnut Hill, IL
Microseason · 28 of 72
May 16–20

Roses open on the Piedmont edge

insect
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Walnut Hill at a glance

  • Today vs. normal: 6°F below the seasonal normal for this latitude
  • Last frost: April 7 (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 Walnut Hill

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.