National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Springfield - Abraham Lincoln Capital Airport (KSPI)

Lat: 39.85°NLon: 89.68°WElev: 587ft.

Overcast

44°F

7°C

Humidity 96%
Wind Speed E 6 mph
Barometer 29.96 in (1014.8 mb)
Dewpoint 43°F (6°C)
Visibility 9.00 mi
Wind Chill41°F (5°C)
Last update 27 Dec 2:52 am CST
Extended Forecast for

Thayer IL

Dense Fog Advisory until December 27, 10:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until December 27, 10:00am

    NOW until 10:00am Sat

    Dense Fog Advisory

  • Overnight

    Low: 42 °F

    Patchy Dense
    Fog

  • Saturday

    Saturday: Patchy dense fog before 9am. Otherwise, mostly cloudy, with a high near 58. Southeast wind 6 to 13 mph, with gusts as high as 22 mph.

    High: 58 °F

    Patchy Dense
    Fog then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of showers, with thunderstorms also possible after 3am. Cloudy, with a temperature rising to around 61 by 3am. South wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    Low: 55 °F⇑

    Chance
    Showers

  • Sunday

    Sunday: Showers. Temperature rising to near 66 by 11am, then falling to around 52 during the remainder of the day. Breezy, with a south wind 11 to 16 mph becoming southwest 17 to 22 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 66 °F⇓

    Showers
    Likely then
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: A 40 percent chance of showers before midnight. Mostly cloudy, with a low around 15. Windy, with a west northwest wind 22 to 30 mph, with gusts as high as 40 mph.

    Low: 15 °F

    Chance
    Showers and
    Blustery then
    Mostly Cloudy
    and Windy

  • Monday

    Monday: Partly sunny, with a high near 24. Blustery, with a west northwest wind 21 to 29 mph, with gusts as high as 41 mph.

    High: 24 °F

    Partly Sunny
    and Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 13. Northwest wind 13 to 18 mph, with gusts as high as 28 mph.

    Low: 13 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny

Detailed Forecast

Overnight
Patchy dense fog. Otherwise, mostly cloudy, with a low around 42. East wind 3 to 5 mph.
Saturday
Patchy dense fog before 9am. Otherwise, mostly cloudy, with a high near 58. Southeast wind 6 to 13 mph, with gusts as high as 22 mph.
Saturday Night
A chance of showers, with thunderstorms also possible after 3am. Cloudy, with a temperature rising to around 61 by 3am. South wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Sunday
Showers. Temperature rising to near 66 by 11am, then falling to around 52 during the remainder of the day. Breezy, with a south wind 11 to 16 mph becoming southwest 17 to 22 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
A 40 percent chance of showers before midnight. Mostly cloudy, with a low around 15. Windy, with a west northwest wind 22 to 30 mph, with gusts as high as 40 mph.
Monday
Partly sunny, with a high near 24. Blustery, with a west northwest wind 21 to 29 mph, with gusts as high as 41 mph.
Monday Night
Mostly clear, with a low around 13. Northwest wind 13 to 18 mph, with gusts as high as 28 mph.
Tuesday
Mostly sunny, with a high near 30.
Tuesday Night
Partly cloudy, with a low around 23.
Wednesday
Mostly sunny, with a high near 39.
Wednesday Night
Mostly cloudy, with a low around 18.
New Year's Day
Mostly sunny, with a high near 28.
Thursday Night
Mostly clear, with a low around 11.
Friday
Mostly sunny, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Thayer IL
 39.54°N 89.76°W (Elev. 643 ft)
Last Update:
3:16 am CST Dec 27, 2025
Forecast Valid:
3am CST Dec 27, 2025-6pm CST Jan 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation