Deer Plain, Illinois Weather
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Weather Forecast for Deer Plain, Illinois : Calhoun County
Issued: 2:21 am CDT Sep 16, 2025 Latitude: 38.9317161 Longitude: -90.5331743 View on Google Maps

MouseOver for Detail Forecast
Overnight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
Cloudy on Overnight Sunny on Tuesday Sunny on Wednesday Mostly Sunny on Thursday 50% chance of thunderstorms on Friday 30% chance of thunderstorms on Saturday 30% chance of on Sunday 30% chance of thunderstorms on Monday
Low: 66°F High: 94°F High: 93°F High: 94°F High: 84°F High: 84°F High: 86°F High: 87°F
Low: 64°F Low: 63°F Low: 67°F Low: 64°F Low: 64°F Low: 66°F  
Cloudy Sunny Sunny Mostly Sunny Thunderstorms Thunderstorms Partly Sunny Thunderstorms
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Current Conditions at
ST CHARLES - (KSET)
66°
Clear
as of 2:54 AM CDST
Rel. Humidity: 93%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 30.10 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
72°
Mostly Clear
as of 2:51 AM CDST
Rel. Humidity: 73%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Few at 25000ft
Current Conditions at
SPIRIT OF ST LOUIS - (KSUS)
63°
Clear
as of 3:31 AM CDST
Rel. Humidity: 100%
Dew Point: 63°F
Visibility: 7 Miles
Pressure: 30.10 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
LITCHFIELD MUNI ARP - (K3LF)
66°
Clear
as of 3:15 AM CDST
Rel. Humidity: 77%
Dew Point: 59°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
3 MPH
090° East
Cloud Level(s): Clear
Cloudy on Overnight Overnight... Partly cloudy, with a low around 66. Light northeast wind.
Sunny on Tuesday Tuesday... Sunny, with a high near 94. Calm wind becoming northeast 5 to 7 mph in the afternoon.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 64. Northeast wind 3 to 5 mph.
Sunny on Wednesday Wednesday... Sunny, with a high near 93. Light east wind.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 63. Calm wind.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 94.
30% chance of thunderstorms Thursday Night Thursday Night... A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
50% chance of thunderstorms Friday Friday... A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84.
50% chance of thunderstorms Friday Night Friday Night... A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
30% chance of thunderstorms Saturday Saturday... A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
30% chance of thunderstorms Saturday Night Saturday Night... A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64.
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 66.
30% chance of thunderstorms Monday Monday... A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Current Radar Image


Sun Almanac for Deer Plain, Illinois
Sunrise: 06:45 AM
Sunset: 7:09 PM
Civil Sunrise:06:18 AM
Civil Sunset: 7:35 PM
Nautical Sunrise: 05:47 AM
Nautical Sunset: 8:07 PM
Astro Sunrise: 05:15 AM
Astro Sunset: 8:39 PM
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