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.

Fair

74°F

23°C

Humidity 80%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 29 Jul 8:35 pm CDT
Extended Forecast for

3 Miles E Augusta IL

  • Tonight

    Tonight: Mostly clear, with a low around 62. East northeast wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 85. Southeast wind 3 to 6 mph.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 67. South southeast wind 6 to 9 mph, with gusts as high as 16 mph.

    Low: 67 °F

    Mostly Cloudy

  • Friday

    Friday: Showers, with thunderstorms also possible after 4pm. High near 79. South southeast wind 10 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    High: 79 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 64. South wind 9 to 14 mph becoming north northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 64 °F

    Showers

  • Saturday

    Saturday: A 30 percent chance of showers. Partly sunny, with a high near 77. Breezy, with a north wind 15 to 20 mph, with gusts as high as 26 mph.

    High: 77 °F

    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 62. North wind 7 to 15 mph, with gusts as high as 21 mph.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 62. East northeast wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 85. Southeast wind 3 to 6 mph.
Thursday Night
Mostly cloudy, with a low around 67. South southeast wind 6 to 9 mph, with gusts as high as 16 mph.
Friday
Showers, with thunderstorms also possible after 4pm. High near 79. South southeast wind 10 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Friday Night
Showers and possibly a thunderstorm. Low around 64. South wind 9 to 14 mph becoming north northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 77. Breezy, with a north wind 15 to 20 mph, with gusts as high as 26 mph.
Saturday Night
Mostly clear, with a low around 62. North wind 7 to 15 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 62.
Monday
Sunny, with a high near 82.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Mostly clear, with a low around 66.
Wednesday
Sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Augusta IL
 40.23°N 90.91°W (Elev. 600 ft)
Last Update:
7:36 pm CDT Jul 29, 2026
Forecast Valid:
8pm CDT Jul 29, 2026-6pm CDT Aug 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation