Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.N/A
| Humidity | NA |
| Wind Speed | NA |
| Barometer | NA |
| Dewpoint | N/A |
| Visibility | NA |
| Last update | *** Not a current observation *** |
Extended Forecast for
3 Miles NE Jacob IL
Extreme Heat Warning August 16, 06:24am until August 16, 08:00pm
NOW until 8:00pm Sun
Extreme Heat Warning
Today
High: 97 °F
Mostly Sunny
then Slight
Chance
T-stormsTonight
Low: 72 °F
Chance
T-stormsMonday
High: 86 °F
Slight Chance
Showers then
Mostly SunnyMonday Night
Low: 67 °F
Mostly Clear
Tuesday
High: 90 °F
Sunny
Tuesday Night
Low: 70 °F
Mostly Clear
then Chance
T-stormsWednesday
High: 91 °F
Chance
ShowersWednesday Night
Low: 69 °F
Chance
T-storms then
Showers
Likely
Detailed Forecast
Today
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 113. Light and variable wind becoming northwest around 5 mph in the morning.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Light and variable wind. Chance of precipitation is 40%.
Monday
A 10 percent chance of showers before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 86. North northwest wind 3 to 7 mph.
Monday Night
Mostly clear, with a low around 67. Light north wind.
Tuesday
Sunny, with a high near 90. Calm wind.
Tuesday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. Light and variable wind.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 91. Calm wind becoming south around 6 mph in the morning.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 69. North northeast wind 3 to 6 mph.
Thursday
A chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 84. North northeast wind 3 to 6 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 65. North northeast wind around 5 mph becoming calm in the evening.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. Calm wind becoming north northeast around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 65. Calm wind.
Saturday
Mostly sunny, with a high near 86. Calm wind becoming north northwest around 6 mph in the afternoon.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles NE Jacob IL
37.78°N 89.51°W
37.78°N 89.51°W
4:16 am CDT Aug 16, 2026
6am CDT Aug 16, 2026-6pm CDT Aug 22, 2026
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