Garrison, Illinois Weather
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Weather Forecast for Garrison, Illinois : Hamilton County
Issued: 12:46 pm CDT Sep 16, 2025 Latitude: 38.2483814 Longitude: -88.5192184 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Wednesday Thursday Friday Saturday Sunday Monday
Sunny on This Afternoon Mostly Clear on Tonight Sunny on Wednesday Sunny on Thursday Partly Sunny on Friday 20% chance of thunderstorms on Saturday 10% chance of on Sunday 20% chance of thunderstorms on Monday
High: 92°F Low: 62°F High: 92°F High: 93°F High: 91°F High: 84°F High: 86°F High: 85°F
Low: 61°F Low: 61°F Low: 63°F Low: 63°F Low: 64°F  
Sunny Mostly Clear Sunny Sunny Partly Sunny Thunderstorms Partly Sunny Thunderstorms
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Current Conditions at
FAIRFIELD MUNICIPAL ARPT - (KFWC)
90°
Clear
as of 12:55 PM CDST
Rel. Humidity: 33%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
7 MPH
070° East
Cloud Level(s): Clear
Current Conditions at
MT VERNON - (KMVN)
91°
Mostly Clear
as of 12:56 PM CDST
Rel. Humidity: 36%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
7 MPH
060° Northeast
Cloud Level(s): Few at 7000ft
Current Conditions at
FLORA MUNICIPAL AIRPORT - (KFOA)
90°
Clear
as of 12:55 PM CDST
Rel. Humidity: 38%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
8 MPH
030° Northeast
Cloud Level(s): Clear
Current Conditions at
CENTRALIA MUNICIPAL ARPT - (KENL)
93°
Partly Cloudy
as of 12:55 PM CDST
Rel. Humidity: 30%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
10 MPH
110° East
Cloud Level(s): Scattered at 6500ft
Sunny on This Afternoon This Afternoon... Sunny, with a high near 92. Northeast wind 3 to 5 mph.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 62. Northeast wind around 5 mph becoming calm in the evening.
Sunny on Wednesday Wednesday... Sunny, with a high near 92. Light north northeast wind.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 61. Calm wind.
Sunny on Thursday Thursday... Sunny, with a high near 93. Light southeast wind.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 61. Calm wind.
Partly Sunny on Friday Friday... Partly sunny, with a high near 91. Calm wind becoming south around 6 mph in the afternoon.
20% chance of thunderstorms Friday Night Friday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Light and variable wind.
20% chance of thunderstorms Saturday Saturday... A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 84. Calm wind becoming south southwest around 6 mph in the afternoon.
10% chance of thunderstorms Saturday Night Saturday Night... A slight chance of showers, with thunderstorms also possible after 1am. Partly cloudy, with a low around 63. Calm wind.
10% chance of Sunday Sunday... A slight chance of showers. Partly sunny, with a high near 86. Calm wind becoming south southwest 5 to 8 mph in the morning.
20% chance of rain Sunday Night Sunday Night... A chance of showers. Mostly cloudy, with a low around 64. South wind 3 to 5 mph.
20% chance of thunderstorms Monday Monday... A chance of showers and thunderstorms. Partly sunny, with a high near 85. South southwest wind 3 to 8 mph.
Current Radar Image


Sun Almanac for Garrison, Illinois
Sunrise: 06:37 AM
Sunset: 7:00 PM
Civil Sunrise:06:11 AM
Civil Sunset: 7:27 PM
Nautical Sunrise: 05:40 AM
Nautical Sunset: 7:58 PM
Astro Sunrise: 05:08 AM
Astro Sunset: 8:30 PM
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