Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
A Few Clouds
93°F
34°C
| Humidity | 67% |
| Wind Speed | SW 8 mph |
| Barometer | 29.94 in |
| Dewpoint | 81°F (27°C) |
| Visibility | 10.00 mi |
| Heat Index | 113°F (45°C) |
| Last update | 26 Jul 12:52 pm CDT |
Extended Forecast for
2 Miles S Jacob IL
Extreme Heat Warning until July 28, 07:00pm
NOW until 7:00pm Tue
Extreme Heat Warning
This Afternoon
High: 96 °F
Slight Chance
T-stormsTonight
Low: 77 °F
Slight Chance
T-storms then
Partly CloudyMonday
High: 100 °F
Hot
Monday Night
Low: 79 °F
Mostly Clear
Tuesday
High: 95 °F
Mostly Sunny
Tuesday Night
Low: 72 °F
Slight Chance
T-storms then
Slight Chance
ShowersWednesday
High: 89 °F
Sunny
Wednesday Night
Low: 66 °F
Mostly Clear
Detailed Forecast
This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96. Heat index values as high as 119. Light west southwest wind.
Tonight
A 20 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 77. Calm wind.
Monday
Sunny and hot, with a high near 100. Heat index values as high as 114. Calm wind becoming south southwest 5 to 9 mph in the afternoon.
Monday Night
Mostly clear, with a low around 79. South wind 5 to 7 mph becoming west southwest after midnight.
Tuesday
Mostly sunny, with a high near 95. North northwest wind 5 to 9 mph.
Tuesday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 72. Northeast wind 3 to 7 mph. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 89. Calm wind becoming north northeast 5 to 8 mph in the morning.
Wednesday Night
Mostly clear, with a low around 66. North northeast wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 90. Calm wind becoming northeast around 6 mph in the afternoon.
Thursday Night
A slight chance of showers after 1am. Partly cloudy, with a low around 68. Light and variable wind.
Friday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 88. Calm wind becoming south southwest around 6 mph in the afternoon.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 68. Southeast wind around 5 mph becoming calm in the evening.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 86. Calm wind becoming north 5 to 8 mph in the morning.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles S Jacob IL
37.73°N 89.54°W
37.73°N 89.54°W
1:21 pm CDT Jul 26, 2026
1pm CDT Jul 26, 2026-6pm CDT Aug 1, 2026
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