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Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
86°F
30°C
| Humidity | 46% |
| Wind Speed | Vrbl 3 mph |
| Barometer | 29.92 in (1012.8 mb) |
| Dewpoint | 63°F (17°C) |
| Visibility | 10.00 mi |
| Heat Index | 87°F (31°C) |
| Last update | 20 Jun 5:52 pm CDT |
Extended Forecast for
5 Miles N Jacob IL
Tonight
Low: 66 °F
Partly Cloudy
Sunday
High: 86 °F
Chance
T-storms then
Showers
LikelySunday Night
Low: 69 °F
Heavy Rain
then ShowersMonday
High: 79 °F
Chance
ShowersMonday Night
Low: 62 °F
Partly Cloudy
Tuesday
High: 80 °F
Mostly Sunny
Tuesday Night
Low: 63 °F
Mostly Clear
Wednesday
High: 83 °F
Mostly Sunny
Wednesday Night
Low: 63 °F
Partly Cloudy
Detailed Forecast
Tonight
Partly cloudy, with a low around 66. Light and variable wind.
Sunday
A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 3pm, then a chance of showers and thunderstorms after 3pm. Increasing clouds, with a high near 86. South wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 60%.
Sunday Night
Showers and thunderstorms before 4am, then showers and possibly a thunderstorm, mainly after 4am. Some of the storms could produce heavy rainfall. Low around 69. South southwest wind 9 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 100%.
Monday
A 40 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 79. West southwest wind 7 to 9 mph becoming north northwest in the afternoon.
Monday Night
Partly cloudy, with a low around 62. North northeast wind 3 to 8 mph.
Tuesday
Mostly sunny, with a high near 80. Light northeast wind.
Tuesday Night
Mostly clear, with a low around 63. Calm wind.
Wednesday
Mostly sunny, with a high near 83. Calm wind.
Wednesday Night
Partly cloudy, with a low around 63. Light and variable wind.
Thursday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82. Light northwest wind.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 63. Light and variable wind.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 83. Calm wind.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Light south wind.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 84. South wind 5 to 8 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
5 Miles N Jacob IL
37.82°N 89.56°W
37.82°N 89.56°W
5:51 pm CDT Jun 20, 2026
6pm CDT Jun 20, 2026-6pm CDT Jun 27, 2026
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