Thayer, Illinois Weather
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Weather Forecast for Thayer, Illinois : Sangamon County
Issued: 8:41 am CDT Sep 16, 2025 Latitude: 39.5381087 Longitude: -89.7631533 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Wednesday Thursday Friday Saturday Sunday Monday
Sunny on Today Mostly Clear on Tonight Sunny on Wednesday Sunny on Thursday 30% chance of on Friday 30% chance of rain on Saturday Partly Sunny on Sunday Mostly Sunny on Monday
High: 91°F Low: 59°F High: 90°F High: 92°F High: 85°F High: 83°F High: 84°F High: 84°F
Low: 60°F Low: 64°F Low: 62°F Low: 62°F Low: 64°F  
Sunny Mostly Clear Sunny Sunny Partly Sunny Rain Partly Sunny Mostly Sunny
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Current Conditions at
SPRINGFIELD - (KSPI)
70°
Clear
as of 8:52 AM CDST
Rel. Humidity: 64%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 30.20 in.
Flight Rule: VFR
Wind Data
6 MPH
080° East
Cloud Level(s): Clear
Current Conditions at
TAYLORVILLE MUNICIPAL - (KTAZ)
73°
Partly Cloudy
as of 8:59 AM CDST
Rel. Humidity: 56%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 30.20 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Scattered at 200ft
Current Conditions at
LITCHFIELD MUNI ARP - (K3LF)
73°
Clear
as of 8:55 AM CDST
Rel. Humidity: 60%
Dew Point: 59°F
Visibility: 10 Miles
Pressure: 30.19 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
LOGAN COUNTY AIRPORT - (KAAA)
70°
Clear
as of 8:55 AM CDST
Rel. Humidity: 68%
Dew Point: 59°F
Visibility: 10 Miles
Pressure: 30.21 in.
Flight Rule: VFR
Wind Data
5 MPH
080° East
Cloud Level(s): Clear
Sunny on Today Today... Sunny, with a high near 91. Calm wind becoming northeast 5 to 7 mph in the afternoon.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 59. East wind 3 to 6 mph.
Sunny on Wednesday Wednesday... Sunny, with a high near 90. Light east wind.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 60. Light east southeast wind.
Sunny on Thursday Thursday... Sunny, with a high near 92. South wind 3 to 6 mph.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 64. South southeast wind 3 to 5 mph.
30% chance of Friday Friday... A 30 percent chance of showers after 1pm. Partly sunny, with a high near 85. South southwest wind 3 to 7 mph.
40% chance of thunderstorms Friday Night Friday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
30% chance of rain Saturday Saturday... A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 83.
30% chance of rain Saturday Night Saturday Night... A 30 percent chance of showers before 1am. Partly cloudy, with a low around 62.
Partly Sunny on Sunday Sunday... Partly sunny, with a high near 84.
20% chance of thunderstorms Sunday Night Sunday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 84.
Current Radar Image


Sun Almanac for Thayer, Illinois
Sunrise: 06:42 AM
Sunset: 7:06 PM
Civil Sunrise:06:15 AM
Civil Sunset: 7:33 PM
Nautical Sunrise: 05:43 AM
Nautical Sunset: 8:04 PM
Astro Sunrise: 05:11 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.