Thomson, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Thomson, IL in one place.
Sunny, with a high near 91.
Local Weather Overview
This forecast page for Thomson, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 12, 2026 8:21 AM CDT.
The active forecast window currently covers Jul 14 to Jul 18, 2026 for Thomson, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 18, 2026
- Latest sync
- Jul 12, 2026 8:21 AM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Thomson
Tuesday looks like the warmest upcoming period in Thomson at 91 degrees F.
Saturday Night is the coolest period ahead with temperatures near 70 degrees F.
The strongest winds are forecast for Friday at about 5 to 10 mph S.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Jul 12, 2026 8:21 AM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- DVN
- Radar station
- KDVN
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Clear, with a low around 72.
Sunny, with a high near 91.
Clear, with a low around 71.
Sunny, with a high near 90.
Mostly clear, with a low around 71.
Sunny, with a high near 89.
Mostly clear, with a low around 72.
Mostly sunny, with a high near 89.
A slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 70.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Sunny
|
91°F |
0 mph
|
|
Tuesday Night
Jul 14
|
Clear
|
72°F |
0 mph
|
|
Wednesday
Jul 15
|
Sunny
|
91°F |
0 to 5 mph
NW
|
|
Wednesday Night
Jul 15
|
Clear
|
71°F |
0 to 5 mph
NE
|
|
Thursday
Jul 16
|
Sunny
|
90°F |
0 to 5 mph
W
|
|
Thursday Night
Jul 16
|
Mostly Clear
|
71°F |
5 mph
S
|
|
Friday
Jul 17
|
Sunny
|
89°F |
5 to 10 mph
S
|
|
Friday Night
Jul 17
|
Mostly Clear
|
72°F |
5 mph
S
|
|
Saturday
Jul 18
|
Mostly Sunny
|
89°F |
5 to 10 mph
SW
|
|
Saturday Night
Jul 18
|
Slight Chance Showers And Thunderstorms
|
70°F |
5 to 10 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Thomson.