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Hazardous Weather Conditions
Current conditions at
Mount Sterling, Mount Sterling Municipal Airport (KI63)
Lat: 39.99°NLon: 90.8°WElev: 732ft.
Mostly Cloudy and Breezy
66°F
19°C
| Humidity | 87% |
| Wind Speed | S 24 G 37 mph |
| Barometer | 29.86 in |
| Dewpoint | 62°F (17°C) |
| Visibility | 10.00 mi |
| Last update | 18 May 3:15 pm CDT |
Extended Forecast for
3 Miles SSE Plymouth IL
This Afternoon

High: 73 °F
Slight Chance
T-stormsTonight
Low: 68 °F
Mostly Cloudy
then Heavy
RainTuesday

High: 74 °F
Chance
ShowersTuesday Night

Low: 50 °F
Mostly Cloudy
Wednesday

High: 67 °F
Increasing
CloudsWednesday Night

Low: 46 °F
Partly Cloudy
Thursday

High: 70 °F
Mostly Sunny
Thursday Night
Low: 52 °F
Mostly Cloudy
then Chance
ShowersFriday

High: 69 °F
Showers
Likely
Detailed Forecast
This Afternoon
A 20 percent chance of showers and thunderstorms. Cloudy, with a high near 73. South wind around 17 mph, with gusts as high as 28 mph.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Some of the storms could produce heavy rainfall. Increasing clouds, with a low around 68. South wind around 17 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
A chance of showers and thunderstorms before 4pm, then a slight chance of showers. Mostly cloudy, with a high near 74. South wind 14 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 40%.
Tuesday Night
Mostly cloudy, with a low around 50. North northwest wind 9 to 11 mph, with gusts as high as 20 mph.
Wednesday
Increasing clouds, with a high near 67. North northeast wind 9 to 11 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 46. East northeast wind 8 to 10 mph, with gusts as high as 18 mph.
Thursday
Mostly sunny, with a high near 70. East wind 9 to 13 mph, with gusts as high as 20 mph.
Thursday Night
A 50 percent chance of showers after 1am. Mostly cloudy, with a low around 52.
Friday
Showers likely. Mostly cloudy, with a high near 69. Chance of precipitation is 70%.
Friday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 55.
Saturday
Partly sunny, with a high near 78.
Saturday Night
Mostly cloudy, with a low around 57.
Sunday
Partly sunny, with a high near 83.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles SSE Plymouth IL
40.25°N 90.88°W (Elev. 617 ft)
40.25°N 90.88°W (Elev. 617 ft)
3:06 pm CDT May 18, 2026
3pm CDT May 18, 2026-6pm CDT May 24, 2026



