Harrisonville, Illinois Weather
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Weather Forecast for Harrisonville, Illinois : Monroe County
Issued: 5:26 am CDT Sep 16, 2025 Latitude: 38.2775544 Longitude: -90.3501191 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 Mostly Sunny on Thursday 50% chance of thunderstorms on Friday 30% chance of rain on Saturday 30% chance of on Sunday 30% chance of thunderstorms on Monday
High: 94°F Low: 63°F High: 94°F High: 95°F High: 86°F High: 85°F High: 86°F High: 87°F
Low: 61°F Low: 65°F Low: 62°F Low: 63°F Low: 64°F  
Morning Fog Mostly Clear Sunny Mostly Sunny Thunderstorms Rain Partly Sunny Thunderstorms
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Current Conditions at
SPIRIT OF ST LOUIS - (KSUS)
63°
Clear
as of 6:54 AM CDST
Rel. Humidity: 93%
Dew Point: 61°F
Visibility: 8 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
5 MPH
250° West
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
70°
Mostly Clear
as of 6:51 AM CDST
Rel. Humidity: 77%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Few at 25000ft
Current Conditions at
SCOTT AFB - (KBLV)
66°
Clear
as of 6:55 AM CDST
Rel. Humidity: 88%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Morning Fog on Today Today... Patchy fog before 9am. Otherwise, sunny, with a high near 94. Calm wind becoming northeast around 6 mph in the afternoon.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 63. Northeast wind around 5 mph becoming calm in the evening.
Sunny on Wednesday Wednesday... Sunny, with a high near 94. Calm wind.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 61. Calm wind.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 95. Light south wind.
20% chance of rain Thursday Night Thursday Night... A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 65.
50% chance of thunderstorms Friday Friday... A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 86. Chance of precipitation is 50%.
40% chance of thunderstorms Friday Night Friday Night... A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
30% chance of rain Saturday Saturday... A 30 percent chance of showers. Mostly sunny, with a high near 85.
20% chance of thunderstorms Saturday Night Saturday Night... A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63.
30% chance of Sunday Sunday... A 30 percent chance of showers. Partly sunny, with a high near 86.
30% chance of thunderstorms Sunday Night Sunday Night... A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
30% chance of thunderstorms Monday Monday... A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Current Radar Image


Sun Almanac for Harrisonville, Illinois
Sunrise: 06:44 AM
Sunset: 7:08 PM
Civil Sunrise:06:18 AM
Civil Sunset: 7:34 PM
Nautical Sunrise: 05:47 AM
Nautical Sunset: 8:05 PM
Astro Sunrise: 05:15 AM
Astro Sunset: 8:37 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.