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

Weather in Thomson, Illinois

Roses Bloom Along the Shelter Rows. Day 59 of spring. Read this microseason across nine climate regions →

Thomson, IL
Sunday, May 17 at 1:42 AM
77
°
Overcast
Feels like
80°
Humidity
69%
Wind
5 mph
Sunrise
5:38 AM
Sunset
8:15 PM
Thomson, IL
Hour by hour · 24h
68°
8p
65°
9p
63°
10p
61°
12%
11p
59°
24%
12a
58°
11%
1a
59°
2a
59°
3a
59°
11%
4a
59°
5a
57°
6a
56°
7a
58°
8a
63°
9a
65°
10a
69°
11a
73°
12p
76°
1p
79°
2p
81°
3p
83°
4p
82°
5p
82°
6p
81°
7p
L 56°H 83°
Thomson, IL
7-day forecast
  1. Today
    May 16
    Heavy Drizzle
    65%
    84°61°
  2. Sunday
    May 17
    Drizzle
    47%
    86°64°
  3. Monday
    May 18
    Thunderstorm
    80%
    83°70°
  4. Tuesday
    May 19
    Showers
    72%
    72°52°
  5. Wednesday
    May 20
    Overcast
    61°43°
  6. Thursday
    May 21
    Overcast
    66°42°
  7. Friday
    May 22
    Overcast
    66°50°
Thomson, IL
Anemometer · 24h winds · from true
NESW
From · True
SSE
151° · backing 29°
Direction
SSE
151°
Sustained
5
mph
Gust
13
mph
Peak 24h
30
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 30 @ 6:00a
−24h−18h−12h−6hnow
Light breeze backing 29° from the sse.
Thomson, IL
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
988.6
-0.6 mb in 3h · rising · 29.19 inHg
Now
988.6
mb
3h
-0.6
mb
12h
-1.8
mb
24h
+2.1
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 986990
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Thomson, IL
Air quality
69
AQI
Moderate
PM 2.5
2.9 μg/m³
PM 10
3.8 μg/m³
NO₂
4.4 μg/m³
Ozone
95.0 μg/m³
UV Index
0.0 Low
Thomson, IL
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:08 AM
Sunrise
5:38 AM
Daylight
14h 37m
Sunset
8:15 PM
Civil dusk
1:47 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Thomson, IL
The moon
New Moon
0% illuminated
Moonrise
10:42 AM
Moonset
1:47 AM
In sign
♉︎ Taurus
Thomson, IL
Microseason · 28 of 72
May 16–20

Roses Bloom Along the Shelter Rows

plant
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Thomson at a glance

  • Today vs. normal: 7°F above the seasonal normal for this latitude
  • Last frost: April 28 (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 Thomson

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.