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

Mount Sterling, Mount Sterling Municipal Airport (KI63)

Lat: 39.99°NLon: 90.8°WElev: 732ft.

Drizzle

44°F

7°C

Humidity 98%
Wind Speed SE 8 mph
Barometer 29.95 in
Dewpoint 44°F (7°C)
Visibility 7.00 mi
Wind Chill39°F (4°C)
Last update 14 Feb 8:35 pm CST
Extended Forecast for

3 Miles NNW Frederick IL

  • Tonight

    Tonight: Rain likely, mainly before 9pm. Patchy fog after 4am. Otherwise, cloudy, with a low around 40. East southeast wind 5 to 7 mph becoming north after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Rain Likely
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 59. North wind around 6 mph.

    High: 59 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 38. Calm wind becoming south southwest around 6 mph after midnight.

    Low: 38 °F

    Increasing
    Clouds

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 62. South southwest wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 62 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 44. South wind 7 to 9 mph, with gusts as high as 17 mph.

    Low: 44 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 65. South southeast wind 7 to 16 mph, with gusts as high as 25 mph.

    High: 65 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 55. South wind 16 to 18 mph, with gusts as high as 29 mph.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Tonight
Rain likely, mainly before 9pm. Patchy fog after 4am. Otherwise, cloudy, with a low around 40. East southeast wind 5 to 7 mph becoming north after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 59. North wind around 6 mph.
Sunday Night
Increasing clouds, with a low around 38. Calm wind becoming south southwest around 6 mph after midnight.
Washington's Birthday
Partly sunny, with a high near 62. South southwest wind 6 to 11 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 44. South wind 7 to 9 mph, with gusts as high as 17 mph.
Tuesday
Mostly cloudy, with a high near 65. South southeast wind 7 to 16 mph, with gusts as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 55. South wind 16 to 18 mph, with gusts as high as 29 mph.
Wednesday
Sunny, with a high near 67.
Wednesday Night
Mostly clear, with a low around 40.
Thursday
A 30 percent chance of rain after noon. Mostly sunny, with a high near 61.
Thursday Night
Partly cloudy, with a low around 33.
Friday
Mostly sunny, with a high near 46.
Friday Night
Mostly cloudy, with a low around 27.
Saturday
Mostly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Frederick IL
 40.11°N 90.45°W (Elev. 666 ft)
Last Update:
8:31 pm CST Feb 14, 2026
Forecast Valid:
8pm CST Feb 14, 2026-6pm CST Feb 21, 2026
 
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Additional Resources

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation