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Hazardous Weather Conditions
Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Thunderstorm Heavy Rain Fog/Mist
70°F
21°C
| Humidity | 93% |
| Wind Speed | E 10 mph |
| Barometer | 29.74 in (1006.5 mb) |
| Dewpoint | 68°F (20°C) |
| Visibility | 1.00 mi |
| Last update | 21 Jun 3:53 pm CDT |
Extended Forecast for
Lerna IL
Flood Watch June 21, 04:16pm until June 22, 01:00am
Tornado Watch until June 21, 09:00pm
Severe T-storm Warning June 21, 04:16pm until June 21, 04:45pm
NOW: Multiple hazards in effect
Click HERE for Details
This Afternoon
High: 78 °F
Severe
ThunderstormsTonight
Low: 63 °F
Severe
Thunderstorms
then Chance
ShowersMonday
High: 72 °F
Mostly Cloudy
Monday Night
Low: 55 °F
Mostly Clear
Tuesday
High: 77 °F
Sunny
Tuesday Night
Low: 58 °F
Mostly Clear
Wednesday
High: 79 °F
Mostly Sunny
Wednesday Night
Low: 65 °F
Mostly Cloudy
then Chance
Showers
Detailed Forecast
This Afternoon
Showers and thunderstorms. Some of the storms could be severe and produce heavy rainfall. High near 78. South southeast wind around 13 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and thunderstorms likely before 1am, then a slight chance of showers. Some of the storms could be severe and produce heavy rainfall. Cloudy, with a low around 63. South wind 8 to 11 mph becoming west after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts between three quarters and one inch possible.
Monday
Mostly cloudy, with a high near 72. North wind 11 to 13 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 55. North wind 5 to 9 mph, with gusts as high as 15 mph.
Tuesday
Sunny, with a high near 77. North northeast wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 58. Light and variable wind.
Wednesday
Mostly sunny, with a high near 79. Light and variable wind becoming south southwest around 6 mph in the morning.
Wednesday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 65.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
Partly cloudy, with a low around 62.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 81.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 83.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Sunday
Partly sunny, with a high near 87.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Lerna IL
39.42°N 88.28°W (Elev. 741 ft)
39.42°N 88.28°W (Elev. 741 ft)
2:41 pm CDT Jun 21, 2026
4pm CDT Jun 21, 2026-6pm CDT Jun 28, 2026
Additional Resources
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Hourly Weather Forecast
