Hazardous Weather Conditions
Current conditions at
Mount Sterling, Mount Sterling Municipal Airport (KI63)
Lat: 39.99°NLon: 90.8°WElev: 732ft.
Fair
78°F
26°C
| Humidity | 87% |
| Wind Speed | S 5 mph |
| Barometer | 30.08 in |
| Dewpoint | 74°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 80°F (27°C) |
| Last update | 15 Aug 9:55 am CDT |
Extended Forecast for
3 Miles NNW Frederick IL
Today
High: 88 °F
Chance
T-storms then
Partly SunnyTonight
Low: 74 °F
Mostly Cloudy
then Showers
LikelySunday
High: 87 °F
Chance
Showers then
Partly SunnySunday Night
Low: 67 °F
Partly Cloudy
Monday
High: 83 °F
Sunny
Monday Night
Low: 64 °F
Mostly Clear
Tuesday
High: 85 °F
Sunny
Tuesday Night
Low: 70 °F
Partly Cloudy
then Showers
LikelyWednesday
High: 83 °F
Chance
T-storms
Detailed Forecast
Today
A 30 percent chance of showers and thunderstorms before 11am. Mostly cloudy, with a high near 88. Heat index values as high as 100. South southwest wind 6 to 8 mph, with gusts as high as 16 mph.
Tonight
A chance of showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 74. Calm wind becoming northwest around 6 mph after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A 30 percent chance of showers and thunderstorms, mainly before 7am. Partly sunny, with a high near 87. Light west northwest wind increasing to 5 to 9 mph in the morning.
Sunday Night
Partly cloudy, with a low around 67. North northwest wind 3 to 8 mph. Winds could gust as high as 15 mph.
Monday
Sunny, with a high near 83. Light north northwest wind.
Monday Night
Mostly clear, with a low around 64. Calm wind.
Tuesday
Sunny, with a high near 85. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 70. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 83.
Wednesday Night
Partly cloudy, with a low around 64.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 60.
Friday
Mostly sunny, with a high near 78.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles NNW Frederick IL
40.11°N 90.45°W (Elev. 666 ft)
40.11°N 90.45°W (Elev. 666 ft)
9:51 am CDT Aug 15, 2026
10am CDT Aug 15, 2026-6pm CDT Aug 21, 2026
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