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

Weather in Belleville, Illinois

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

Belleville, IL
Sunday, May 17 at 6:04 AM
71
°
Mostly Clear
Feels like
75°
Humidity
82%
Wind
6 mph
Sunrise
5:46 AM
Sunset
8:06 PM
Belleville, IL
Hour by hour · 24h
60°
1a
59°
2a
59°
3a
58°
4a
60°
5a
59°
11%
6a
60°
11%
7a
61°
15%
8a
63°
13%
9a
67°
10a
71°
11a
75°
12p
79°
1p
81°
2p
82°
3p
82°
4p
81°
5p
80°
6p
80°
7p
79°
8p
77°
9p
74°
10p
74°
11p
74°
12a
L 58°H 82°
Belleville, IL
7-day forecast
  1. Today
    May 17
    Overcast
    87°68°
  2. Monday
    May 18
    Showers
    47%
    80°69°
  3. Tuesday
    May 19
    Light Showers
    89%
    82°60°
  4. Wednesday
    May 20
    Overcast
    70%
    67°52°
  5. Thursday
    May 21
    Light Drizzle
    13%
    71°48°
  6. Friday
    May 22
    Overcast
    20%
    78°62°
  7. Saturday
    May 23
    Light Drizzle
    18%
    83°58°
Belleville, IL
Anemometer · 24h winds · from true
NESW
From · True
S
182° · veering 102°
Direction
S
182°
Sustained
6
mph
Gust
17
mph
Peak 24h
27
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 27 @ 1:00p
−24h−18h−12h−6hnow
Light breeze veering 102° from the s.
Belleville, IL
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
993.6
-0.1 mb in 3h · steady · 29.34 inHg
Now
993.6
mb
3h
-0.1
mb
12h
+0.6
mb
24h
-0.6
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 992997
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Belleville, IL
Air quality
34
AQI
Good
PM 2.5
4.0 μg/m³
PM 10
4.4 μg/m³
NO₂
4.2 μg/m³
Ozone
89.0 μg/m³
UV Index
0.0 Low
Belleville, IL
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:18 AM
Sunrise
5:46 AM
Daylight
14h 20m
Sunset
8:06 PM
Civil dusk
1:37 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Belleville, IL
The moon
New Moon
0% illuminated
Moonrise
10:54 AM
Moonset
1:33 AM
In sign
♊︎ Gemini
Belleville, 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 →

Belleville at a glance

  • Today vs. normal: 71°F — typical for the season
  • 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 Belleville

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.