Hamilton County, IL Weather Forecast
County weather hub
Chance Showers And Thunderstorms
Compare major city weather across Hamilton County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of showers and thunderstorms. Partly sunny, with a high near 86. Southwest wind 13 to 16 mph, with gusts as high as 23 mph.
County Weather Overview
This county weather page brings together forecast coverage for Hamilton County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 2 of 2 mapped cities in Hamilton County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 15 to Apr 16, 2026
- Latest sync
- Apr 10, 2026 9:14 AM CDT
- Forecast office
- PAH
- Source
- NOAA / NWS
Daily Outlook
This Week in Hamilton County
Wednesday looks like the warmest upcoming period in Hamilton County at 86 degrees F.
Thursday Night is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Wednesday at about 13 to 16 mph SW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 10, 2026 9:14 AM CDT
- Coverage
- 2 days
- Time zone
- America/Chicago
- Forecast office
- PAH
- Radar station
- KVWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 81. South southwest wind 6 to 12 mph.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 60. South southwest wind 5 to 8 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Apr 15
|
Chance Showers And Thunderstorms
|
86°F |
13 to 16 mph
SW
|
|
Wednesday Night
Apr 15
|
Chance Showers And Thunderstorms
|
62°F |
6 to 10 mph
SW
|
|
Thursday
Apr 16
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
81°F |
6 to 12 mph
SSW
|
|
Thursday Night
Apr 16
|
Chance Showers And Thunderstorms
|
60°F |
5 to 8 mph
SSW
|
Major City Forecasts
Live forecast snapshots for major cities across Hamilton County.
Coverage
Forecast coverage currently spans 2 of 2 mapped cities in Hamilton County.
Largest mapped city population in this region: 2,730.
