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Hazardous Weather Conditions

Current conditions at

Mount Sterling, Mount Sterling Municipal Airport (KI63)

Lat: 39.99°NLon: 90.8°WElev: 732ft.

Overcast

63°F

17°C

Humidity 82%
Wind Speed E 6 mph
Barometer 30.10 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 15 Oct 2:35 am CDT
Extended Forecast for

Frederick IL

  • Overnight

    Overnight: A 20 percent chance of showers after 3am. Cloudy, with a low around 60. East northeast wind around 6 mph, with gusts as high as 15 mph.

    Low: 60 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 1pm, then showers likely between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. High near 73. Light and variable wind becoming south southwest 5 to 10 mph in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 73 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 11pm. Mostly cloudy, with a low around 45. Northwest wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.

    Low: 45 °F

    Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: A chance of showers between 3pm and 5pm. Increasing clouds, with a high near 55. Breezy, with a northwest wind 14 to 20 mph, with gusts as high as 37 mph. Chance of precipitation is 30%.

    High: 55 °F

    Mostly Sunny
    then Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: Patchy frost after 5am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 35. North northwest wind 10 to 15 mph becoming light north after midnight. Winds could gust as high as 25 mph.

    Low: 35 °F

    Mostly Cloudy
    then Patchy
    Frost

  • Saturday

    Saturday: Areas of frost before 8am. Otherwise, sunny, with a high near 58. Calm wind.

    High: 58 °F

    Areas Frost
    then Sunny

  • Saturday Night

    Saturday Night: Areas of frost after 5am. Otherwise, clear, with a low around 36. Calm wind.

    Low: 36 °F

    Clear then
    Areas Frost

  • Sunday

    Sunday: Areas of frost before 8am. Otherwise, sunny, with a high near 67.

    High: 67 °F

    Areas Frost
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers after 3am. Cloudy, with a low around 60. East northeast wind around 6 mph, with gusts as high as 15 mph.
Thursday
Showers and possibly a thunderstorm before 1pm, then showers likely between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. High near 73. Light and variable wind becoming south southwest 5 to 10 mph in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 11pm. Mostly cloudy, with a low around 45. Northwest wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.
Friday
A chance of showers between 3pm and 5pm. Increasing clouds, with a high near 55. Breezy, with a northwest wind 14 to 20 mph, with gusts as high as 37 mph. Chance of precipitation is 30%.
Friday Night
Patchy frost after 5am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 35. North northwest wind 10 to 15 mph becoming light north after midnight. Winds could gust as high as 25 mph.
Saturday
Areas of frost before 8am. Otherwise, sunny, with a high near 58. Calm wind.
Saturday Night
Areas of frost after 5am. Otherwise, clear, with a low around 36. Calm wind.
Sunday
Areas of frost before 8am. Otherwise, sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 39.
Monday
Mostly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Frederick IL
 40.06°N 90.43°W (Elev. 440 ft)
Last Update:
1:55 am CDT Oct 15, 2026
Forecast Valid:
2am CDT Oct 15, 2026-6pm CDT Oct 21, 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