Current conditions at

Mount Sterling, Mount Sterling Municipal Airport (KI63)

Lat: 39.99°NLon: 90.8°WElev: 732ft.

Fair

79°F

26°C

Humidity 43%
Wind Speed N 6 mph
Barometer 29.99 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 20 Jun 4:35 pm CDT
Extended Forecast for

Huntsville IL

Flood Watch June 21, 07:00am until June 22, 01:00am
Click here for hazard details and duration
Flood Watch
  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms after 4am.  Increasing clouds, with a low around 61. Calm wind becoming east around 6 mph after midnight.

    Low: 61 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms. Some of the storms could produce heavy rainfall.  High near 73. East wind 10 to 15 mph, with gusts as high as 24 mph.  Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.

    High: 73 °F

    Heavy Rain

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Some of the storms could produce heavy rainfall.  Cloudy, with a low around 59. North northeast wind 10 to 13 mph, with gusts as high as 20 mph.  Chance of precipitation is 40%.

    Low: 59 °F

    Heavy Rain
    then Slight
    Chance
    Showers

  • Monday

    Monday: Cloudy, then gradually becoming mostly sunny, with a high near 74. North northeast wind 10 to 13 mph, with gusts as high as 20 mph.

    High: 74 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. Northeast wind around 6 mph becoming calm  in the evening.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77. Light northeast wind.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60. Calm wind.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 61. Calm wind becoming east around 6 mph after midnight.
Sunday
Showers and thunderstorms. Some of the storms could produce heavy rainfall. High near 73. East wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.
Sunday Night
A chance of showers and thunderstorms. Some of the storms could produce heavy rainfall. Cloudy, with a low around 59. North northeast wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Monday
Cloudy, then gradually becoming mostly sunny, with a high near 74. North northeast wind 10 to 13 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 57. Northeast wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 77. Light northeast wind.
Tuesday Night
Mostly clear, with a low around 60. Calm wind.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 59.
Friday
Mostly sunny, with a high near 80.
Friday Night
A chance of showers. Partly cloudy, with a low around 62.
Saturday
A chance of showers. Partly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
Huntsville IL
 40.18°N 90.85°W (Elev. 600 ft)
1:26 pm CDT Jun 20, 2026
4pm CDT Jun 20, 2026-6pm CDT Jun 27, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database