Harrison, Illinois Weather
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Weather Forecast for Harrison, Illinois : Jackson County
Issued: 5:31 am CDT Sep 16, 2025 Latitude: 37.7967175 Longitude: -89.337033 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Wednesday Thursday Friday Saturday Sunday Monday
Morning Fog on Today Mostly Clear on Tonight Sunny on Wednesday Sunny on Thursday 30% chance of thunderstorms on Friday 20% chance of thunderstorms on Saturday 20% chance of thunderstorms on Sunday 20% chance of thunderstorms on Monday
High: 93°F Low: 64°F High: 93°F High: 94°F High: 89°F High: 84°F High: 86°F High: 85°F
Low: 63°F Low: 66°F Low: 65°F Low: 64°F Low: 65°F  
Morning Fog Mostly Clear Sunny Sunny Thunderstorms Thunderstorms Thunderstorms Thunderstorms
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Current Conditions at
CARBONDALE - (KMDH)
64°
Clear
Mist
as of 7:37 AM CDST
Rel. Humidity: 100%
Dew Point: 64°F
Visibility: 3 Miles
Pressure: 30.13 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
MARION - (KMWA)
64°
Clear
as of 6:45 AM CDST
Rel. Humidity: 93%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
SPARTA - (KSAR)
70°
Partly Cloudy
as of 7:35 AM CDST
Rel. Humidity: 88%
Dew Point: 66°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Scattered at 6500ft
Current Conditions at
CAIRO - (KCIR)
68°
Clear
as of 7:35 AM CDST
Rel. Humidity: 100%
Dew Point: 68°F
Visibility: 7 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Morning Fog on Today Today... Patchy fog before 8am. Otherwise, sunny, with a high near 93. Calm wind becoming east northeast around 5 mph in the afternoon.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 64. Calm wind.
Sunny on Wednesday Wednesday... Sunny, with a high near 93. Light east northeast wind.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 63. Calm wind.
Sunny on Thursday Thursday... Sunny, with a high near 94. Calm wind becoming south southeast around 5 mph in the afternoon.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 66. Light and variable wind.
30% chance of thunderstorms Friday Friday... A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 30%.
20% chance of thunderstorms Friday Night Friday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Light and variable wind.
20% chance of thunderstorms Saturday Saturday... A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 84. Calm wind becoming south 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 64. Light south wind.
20% chance of thunderstorms Sunday Sunday... A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Calm wind becoming south 5 to 8 mph in the morning.
20% chance of thunderstorms Sunday Night Sunday Night... A chance of showers and thunderstorms. Partly cloudy, with a low around 65. 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 wind 5 to 8 mph.
Current Radar Image


Sun Almanac for Harrison, Illinois
Sunrise: 06:41 AM
Sunset: 7:03 PM
Civil Sunrise:06:14 AM
Civil Sunset: 7:30 PM
Nautical Sunrise: 05:43 AM
Nautical Sunset: 8:01 PM
Astro Sunrise: 05:12 AM
Astro Sunset: 8:32 PM
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