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

65°F

18°C

Humidity 78%
Wind Speed SW 9 mph
Barometer 29.79 in
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 10 Mar 1:15 am CDT
Extended Forecast for

3 Miles E Augusta IL

  • Overnight

    Overnight: Mostly clear, with a low around 59. Southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of rain and thunderstorms after 4pm. Partly sunny, with a high near 80. South southwest wind 10 to 16 mph, with gusts as high as 24 mph.

    High: 80 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Rain and thunderstorms, mainly before 2am, then showers and possibly a thunderstorm after 2am. Low around 45. West southwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 45 °F

    T-storms

  • Wednesday

    Wednesday: Showers likely before 1pm. Cloudy, with a temperature falling to around 45 by 4pm. Breezy, with a northwest wind 15 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 54 °F⇓

    Showers
    Likely and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming clear, with a low around 29. North northwest wind 6 to 16 mph, with gusts as high as 24 mph.

    Low: 29 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Increasing clouds, with a high near 52. West wind 5 to 10 mph becoming south southwest 11 to 16 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 52 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 43. Breezy, with a south wind 15 to 22 mph, with gusts as high as 32 mph.

    Low: 43 °F

    Mostly Cloudy
    and Breezy

  • Friday

    Friday: Mostly cloudy, with a high near 54.

    High: 54 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 59. Southwest wind around 10 mph, with gusts as high as 20 mph.
Tuesday
A 30 percent chance of rain and thunderstorms after 4pm. Partly sunny, with a high near 80. South southwest wind 10 to 16 mph, with gusts as high as 24 mph.
Tuesday Night
Rain and thunderstorms, mainly before 2am, then showers and possibly a thunderstorm after 2am. Low around 45. West southwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
Showers likely before 1pm. Cloudy, with a temperature falling to around 45 by 4pm. Breezy, with a northwest wind 15 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Mostly cloudy, then gradually becoming clear, with a low around 29. North northwest wind 6 to 16 mph, with gusts as high as 24 mph.
Thursday
Increasing clouds, with a high near 52. West wind 5 to 10 mph becoming south southwest 11 to 16 mph in the afternoon. Winds could gust as high as 23 mph.
Thursday Night
Mostly cloudy, with a low around 43. Breezy, with a south wind 15 to 22 mph, with gusts as high as 32 mph.
Friday
Mostly cloudy, with a high near 54.
Friday Night
Mostly cloudy, with a low around 36.
Saturday
Mostly cloudy, with a high near 63.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 43.
Sunday
A chance of rain. Mostly cloudy, with a high near 56. Breezy.
Sunday Night
Partly cloudy, with a low around 23. Blustery.
Monday
Mostly sunny, with a high near 36.
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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:
12:36 am CDT Mar 10, 2026
Forecast Valid:
1am CDT Mar 10, 2026-6pm CDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation