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

46°F

8°C

Humidity 73%
Wind Speed SE 5 mph
Barometer 30.03 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 19 Mar 12:55 am CDT
Extended Forecast for

3 Miles SSE Plymouth IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 38. South southeast wind 3 to 5 mph.

    Low: 38 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 68. East southeast wind 3 to 5 mph.

    High: 68 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 45. Calm wind becoming southwest around 6 mph after midnight.

    Low: 45 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 77. West southwest wind 7 to 13 mph, with gusts as high as 17 mph.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 47. North northwest wind around 6 mph.

    Low: 47 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 79. Southwest wind 5 to 10 mph, with gusts as high as 16 mph.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55. South southwest wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 70. Breezy.

    High: 70 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 38. South southeast wind 3 to 5 mph.
Thursday
Sunny, with a high near 68. East southeast wind 3 to 5 mph.
Thursday Night
Partly cloudy, with a low around 45. Calm wind becoming southwest around 6 mph after midnight.
Friday
Sunny, with a high near 77. West southwest wind 7 to 13 mph, with gusts as high as 17 mph.
Friday Night
Mostly cloudy, with a low around 47. North northwest wind around 6 mph.
Saturday
Sunny, with a high near 79. Southwest wind 5 to 10 mph, with gusts as high as 16 mph.
Saturday Night
Mostly clear, with a low around 55. South southwest wind 8 to 11 mph, with gusts as high as 21 mph.
Sunday
Partly sunny, with a high near 70. Breezy.
Sunday Night
Mostly cloudy, with a low around 34.
Monday
Partly sunny, with a high near 50.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
Mostly cloudy, with a high near 55.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Partly sunny, with a high near 66.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Plymouth IL
 40.25°N 90.88°W (Elev. 617 ft)
Last Update:
12:35 am CDT Mar 19, 2026
Forecast Valid:
1am CDT Mar 19, 2026-6pm CDT Mar 25, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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