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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.
Thunderstorm Heavy Rain
60°F
16°C
| Humidity | 97% |
| Wind Speed | E 12 mph |
| Barometer | 29.83 in |
| Dewpoint | 59°F (15°C) |
| Visibility | 2.00 mi |
| Last update | 21 Jun 10:55 am CDT |
Extended Forecast for
Frederick IL
Flood Warning until further notice
Flood Watch until June 22, 01:00am
NOW: Multiple hazards in effect

Click HERE for Details
Today

High: 73 °F
Heavy Rain
Tonight
Low: 57 °F
Heavy Rain
then Mostly
CloudyMonday

High: 75 °F
Partly Sunny
Monday Night

Low: 56 °F
Decreasing
CloudsTuesday

High: 79 °F
Sunny
Tuesday Night

Low: 59 °F
Mostly Clear
Wednesday

High: 81 °F
Mostly Sunny
Wednesday Night

Low: 61 °F
Partly Cloudy
Detailed Forecast
Today
Showers and thunderstorms, mainly before 4pm. Some of the storms could produce heavy rainfall. High near 73. East wind 11 to 14 mph becoming south in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 57. North northeast wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 75. North wind 9 to 11 mph, with gusts as high as 18 mph.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 56. North northeast wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 79. Light east northeast wind.
Tuesday Night
Mostly clear, with a low around 59. Calm wind.
Wednesday
Mostly sunny, with a high near 81. Calm wind becoming southwest around 6 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 61.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 59.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 81.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 85.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Frederick IL
40.06°N 90.45°W (Elev. 466 ft)
40.06°N 90.45°W (Elev. 466 ft)
9:16 am CDT Jun 21, 2026
11am CDT Jun 21, 2026-6pm CDT Jun 27, 2026



