Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Overcast
63°F
17°C
| Humidity | 90% |
| Wind Speed | Calm |
| Barometer | 29.80 in (1009.1 mb) |
| Dewpoint | 60°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 18 Apr 2:56 am CDT |
Extended Forecast for
Sesser IL
Overnight

Low: 65 °F
Showers
Saturday
High: 62 °F⇓
Showers then
Slight Chance
ShowersSaturday Night

Low: 39 °F
Mostly Clear
Sunday

High: 68 °F
Sunny
Sunday Night

Low: 41 °F
Mostly Clear
Monday

High: 66 °F
Sunny
Monday Night

Low: 50 °F
Clear
Tuesday

High: 77 °F
Mostly Sunny
Tuesday Night

Low: 56 °F
Mostly Clear
Detailed Forecast
Overnight
Showers and possibly a thunderstorm. Steady temperature around 65. West wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.
Saturday
Showers and possibly a thunderstorm before noon, then a slight chance of showers between noon and 2pm. Temperature falling to around 51 by 9am. West wind 13 to 17 mph becoming north northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 80%.
Saturday Night
Mostly clear, with a low around 39. Northwest wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 18 mph.
Sunday
Sunny, with a high near 68. Light west southwest wind becoming west 9 to 14 mph in the morning. Winds could gust as high as 21 mph.
Sunday Night
Mostly clear, with a low around 41. West northwest wind around 6 mph becoming northeast after midnight.
Monday
Sunny, with a high near 66. Light and variable wind becoming east around 6 mph in the morning.
Monday Night
Clear, with a low around 50. Southeast wind 5 to 8 mph.
Tuesday
Mostly sunny, with a high near 77. Southwest wind 9 to 15 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly clear, with a low around 56. Southwest wind 7 to 10 mph.
Wednesday
Sunny, with a high near 81. Southwest wind 6 to 9 mph.
Wednesday Night
Mostly clear, with a low around 59. South wind around 6 mph.
Thursday
Sunny, with a high near 83. South wind 7 to 15 mph, with gusts as high as 23 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 63. South wind 11 to 13 mph, with gusts as high as 22 mph.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 78. South southwest wind 13 to 16 mph, with gusts as high as 24 mph.
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ABOUT THIS FORECAST
Point Forecast:
Sesser IL
38.09°N 89.04°W
38.09°N 89.04°W
2:41 am CDT Apr 18, 2026
3am CDT Apr 18, 2026-6pm CDT Apr 24, 2026



