Fort Gage, IL Weather Forecast
Local 7-day forecast
Isolated Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Fort Gage, IL in one place.
Isolated showers and thunderstorms. Sunny, with a high near 99. Heat index values as high as 107. South wind around 8 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Fort Gage, 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: Sep 15, 2026 5:16 PM CDT.
The active forecast window currently covers Sep 15 to Sep 21, 2026 for Fort Gage, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 15 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 5:16 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Fort Gage
This Afternoon looks like the warmest upcoming period in Fort Gage at 99 degrees F.
Monday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for This Afternoon at about 8 mph S.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 5:16 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KLSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 73. Heat index values as high as 103. Southeast wind 2 to 7 mph.
Isolated showers and thunderstorms after 7am. Mostly sunny. High near 98, with temperatures falling to around 94 in the afternoon. Heat index values as high as 104. South wind 2 to 6 mph. Chance of precipitation is 20%.
Mostly clear, with a low around 73. Heat index values as high as 100. South wind around 5 mph.
Sunny, with a high near 99. West wind around 5 mph.
Partly cloudy, with a low around 72.
Sunny, with a high near 97.
Mostly clear, with a low around 71.
Sunny, with a high near 98.
Partly cloudy, with a low around 71.
Mostly sunny, with a high near 94.
A slight chance of rain showers between 7pm and 1am, then a slight chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 20%.
A chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Sep 15
|
Isolated Showers And Thunderstorms
|
99°F |
8 mph
S
|
|
Tonight
Sep 15
|
Partly Cloudy
|
73°F |
2 to 7 mph
SE
|
|
Wednesday
Sep 16
|
Isolated Showers And Thunderstorms
|
98°F |
2 to 6 mph
S
|
|
Wednesday Night
Sep 16
|
Mostly Clear
|
73°F |
5 mph
S
|
|
Thursday
Sep 17
|
Sunny
|
99°F |
5 mph
W
|
|
Thursday Night
Sep 17
|
Partly Cloudy
|
72°F |
1 mph
S
|
|
Friday
Sep 18
|
Sunny
|
97°F |
3 mph
SW
|
|
Friday Night
Sep 18
|
Mostly Clear
|
71°F |
3 mph
SE
|
|
Saturday
Sep 19
|
Sunny
|
98°F |
3 to 8 mph
SW
|
|
Saturday Night
Sep 19
|
Partly Cloudy
|
71°F |
6 mph
SW
|
|
Sunday
Sep 20
|
Mostly Sunny
|
94°F |
3 to 8 mph
W
|
|
Sunday Night
Sep 20
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
67°F |
7 mph
W
|
|
Monday
Sep 21
|
Chance Showers And Thunderstorms
|
85°F |
5 to 8 mph
NW
|
|
Monday Night
Sep 21
|
Chance Showers And Thunderstorms
|
62°F |
3 to 7 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Fort Gage.