Gallatin County, IL Weather Forecast
County weather hub
Chance Showers And Thunderstorms
Compare major city weather across Gallatin County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of showers and thunderstorms before 4am, then showers and thunderstorms. Cloudy. Low around 53, with temperatures rising to around 68 overnight. Southwest wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.
County Weather Overview
This county weather page brings together forecast coverage for Gallatin County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 1 of 1 mapped cities in Gallatin County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 18 to Apr 24, 2026
- Latest sync
- Apr 18, 2026 5:59 AM CDT
- Forecast office
- PAH
- Source
- NOAA / NWS
Daily Outlook
This Week in Gallatin County
Thursday looks like the warmest upcoming period in Gallatin County at 84 degrees F.
Saturday Night is the coolest period ahead with temperatures near 39 degrees F.
The strongest winds are forecast for Saturday at about 9 to 14 mph WNW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 18, 2026 5:59 AM CDT
- Coverage
- 7 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
Showers and thunderstorms before 5pm. Some of the storms could produce heavy rain. Mostly cloudy. High near 66, with temperatures falling to around 56 in the afternoon. West northwest wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.
Partly cloudy. Low around 39, with temperatures rising to around 41 overnight. West northwest wind 2 to 9 mph.
Sunny, with a high near 67. West southwest wind 2 to 12 mph, with gusts as high as 20 mph.
Mostly clear, with a low around 41. North northwest wind 3 to 7 mph.
Sunny, with a high near 66. East wind around 3 mph.
Clear, with a low around 48. South southeast wind 2 to 6 mph.
Mostly sunny, with a high near 77. South southwest wind 6 to 13 mph, with gusts as high as 22 mph.
Mostly clear, with a low around 56. Southwest wind 6 to 9 mph.
Sunny, with a high near 82. Southwest wind 6 to 9 mph.
Clear, with a low around 59. South southwest wind around 6 mph.
Sunny, with a high near 84. South southwest wind 6 to 12 mph, with gusts as high as 21 mph.
A chance of rain showers after 1am. Partly cloudy, with a low around 63. South wind around 10 mph.
A chance of rain showers before 1pm, then showers and thunderstorms likely. Partly sunny, with a high near 78. South southwest wind 10 to 14 mph, with gusts as high as 22 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Apr 18
|
Chance Showers And Thunderstorms
|
53°F |
10 mph
SW
|
|
Saturday
Apr 18
|
Showers And Thunderstorms
|
66°F |
9 to 14 mph
WNW
|
|
Saturday Night
Apr 18
|
Partly Cloudy
|
39°F |
2 to 9 mph
WNW
|
|
Sunday
Apr 19
|
Sunny
|
67°F |
2 to 12 mph
WSW
|
|
Sunday Night
Apr 19
|
Mostly Clear
|
41°F |
3 to 7 mph
NNW
|
|
Monday
Apr 20
|
Sunny
|
66°F |
3 mph
E
|
|
Monday Night
Apr 20
|
Clear
|
48°F |
2 to 6 mph
SSE
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
77°F |
6 to 13 mph
SSW
|
|
Tuesday Night
Apr 21
|
Mostly Clear
|
56°F |
6 to 9 mph
SW
|
|
Wednesday
Apr 22
|
Sunny
|
82°F |
6 to 9 mph
SW
|
|
Wednesday Night
Apr 22
|
Clear
|
59°F |
6 mph
SSW
|
|
Thursday
Apr 23
|
Sunny
|
84°F |
6 to 12 mph
SSW
|
|
Thursday Night
Apr 23
|
Partly Cloudy then Chance Rain Showers
|
63°F |
10 mph
S
|
|
Friday
Apr 24
|
Showers And Thunderstorms Likely
|
78°F |
10 to 14 mph
SSW
|
Major City Forecasts
Live forecast snapshots for major cities across Gallatin County.
Coverage
Forecast coverage currently spans 1 of 1 mapped cities in Gallatin County.
Largest mapped city population in this region: 1,070.
