Current conditions at

Mount Sterling, Mount Sterling Municipal Airport (KI63)

Lat: 39.99°NLon: 90.8°WElev: 732ft.

Fair

94°F

34°C

Humidity 69%
Wind Speed W 3 mph
Barometer 29.87 in
Dewpoint 82°F (28°C)
Visibility 10.00 mi
Heat Index118°F (48°C)
Last update 26 Jul 5:55 pm CDT
Extended Forecast for

Frederick IL

Extreme Heat Warning July 26, 06:08pm until July 27, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 26, 06:08pm until July 27, 09:00pm

    NOW until 9:00pm Mon

    Extreme Heat Warning

  • Tonight

    Low: 76 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Sunny and hot, with a high near 95. Heat index values as high as 110. Light south wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 95 °F

    Hot

  • Monday Night

    Monday Night: Partly cloudy, with a low around 75. West southwest wind 5 to 7 mph becoming light and variable.

    Low: 75 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 89. North northeast wind 5 to 8 mph, with gusts as high as 15 mph.

    High: 89 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 67. North northeast wind around 5 mph becoming calm  in the evening.

    Low: 67 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 87. Light east northeast wind.

    High: 87 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 65. Calm wind.

    Low: 65 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. West wind around 5 mph becoming calm in the evening.
Monday
Sunny and hot, with a high near 95. Heat index values as high as 110. Light south wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Monday Night
Partly cloudy, with a low around 75. West southwest wind 5 to 7 mph becoming light and variable.
Tuesday
Mostly sunny, with a high near 89. North northeast wind 5 to 8 mph, with gusts as high as 15 mph.
Tuesday Night
Mostly clear, with a low around 67. North northeast wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 87. Light east northeast wind.
Wednesday Night
Clear, with a low around 65. Calm wind.
Thursday
Sunny, with a high near 88.
Thursday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 68.
Friday
A 50 percent chance of showers. The rain could be heavy at times. Partly sunny, with a high near 81.
Friday Night
A chance of showers. Mostly cloudy, with a low around 67.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
Mostly clear, with a low around 66.
Sunday
Sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Frederick IL
 40.06°N 90.43°W (Elev. 440 ft)
5:26 pm CDT Jul 26, 2026
6pm CDT Jul 26, 2026-6pm CDT Aug 2, 2026
 
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Additional Resources

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