Current conditions at

Mount Sterling, Mount Sterling Municipal Airport (KI63)

Lat: 39.99°NLon: 90.8°WElev: 732ft.

Fair

91°F

33°C

Humidity 75%
Wind Speed W 6 mph
Barometer 29.92 in
Dewpoint 82°F (28°C)
Visibility 10.00 mi
Heat Index113°F (45°C)
Last update 26 Jul 1:15 pm CDT
Extended Forecast for

3 Miles NNW Huntsville IL

Extreme Heat Warning until July 27, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning until July 27, 09:00pm

    NOW until 9:00pm Mon

    Extreme Heat Warning

  • This Afternoon

    High: 94 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 77. South southwest wind around 6 mph.

    Low: 77 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 93. Heat index values as high as 107. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 93 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 75. West southwest wind 6 to 9 mph becoming north northwest after midnight. Winds could gust as high as 16 mph.

    Low: 75 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 87. North northeast wind 7 to 9 mph, with gusts as high as 15 mph.

    High: 87 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 67. North northeast wind around 6 mph becoming calm  in the evening.

    Low: 67 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 66.

    Low: 66 °F

    Clear

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 94. Heat index values as high as 112. West southwest wind around 7 mph.
Tonight
Partly cloudy, with a low around 77. South southwest wind around 6 mph.
Monday
Sunny, with a high near 93. Heat index values as high as 107. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 75. West southwest wind 6 to 9 mph becoming north northwest after midnight. Winds could gust as high as 16 mph.
Tuesday
Mostly sunny, with a high near 87. North northeast wind 7 to 9 mph, with gusts as high as 15 mph.
Tuesday Night
Mostly clear, with a low around 67. North northeast wind around 6 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 86. Calm wind becoming east northeast around 5 mph in the afternoon.
Wednesday Night
Clear, with a low around 66.
Thursday
Sunny, with a high near 87.
Thursday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 68.
Friday
A chance of showers. Partly sunny, with a high near 80.
Friday Night
A chance of showers. Partly cloudy, with a low around 66.
Saturday
Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Huntsville IL
 40.23°N 90.88°W (Elev. 600 ft)
1:26 pm CDT Jul 26, 2026
1pm CDT Jul 26, 2026-6pm CDT Aug 1, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database