Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

A Few Clouds

77°F

25°C

Humidity 79%
Wind Speed NE 7 mph
Barometer 29.91 in (1013.0 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 16 Jun 5:56 pm CDT
Extended Forecast for

Nason IL

  • Tonight

    Tonight: Showers and possibly a thunderstorm, mainly before 10pm, then a chance of showers and thunderstorms after 10pm.  Low around 70. Calm wind.  Chance of precipitation is 80%.

    Low: 70 °F

    Showers then
    Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly before 1pm.  Cloudy, then gradually becoming mostly sunny, with a high near 86. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 86 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 73. South wind 5 to 7 mph.

    Low: 73 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm.  Partly sunny, with a high near 86. South southwest wind 9 to 15 mph, with gusts as high as 22 mph.  Chance of precipitation is 70%.

    High: 86 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 70. South southwest wind 6 to 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%.

    Low: 70 °F

    Showers
    Likely

  • Juneteenth

    Juneteenth: A slight chance of thunderstorms before 7am.  Mostly sunny, with a high near 85. West northwest wind 3 to 6 mph.  Chance of precipitation is 10%.

    High: 85 °F

    Slight Chance
    T-storms then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 89. Calm wind becoming south southwest 5 to 7 mph in the morning.

    High: 89 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 74. South wind around 6 mph.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers and possibly a thunderstorm, mainly before 10pm, then a chance of showers and thunderstorms after 10pm. Low around 70. Calm wind. Chance of precipitation is 80%.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 86. Calm wind becoming south southwest around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 73. South wind 5 to 7 mph.
Wednesday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. South southwest wind 9 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. South southwest wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Juneteenth
A slight chance of thunderstorms before 7am. Mostly sunny, with a high near 85. West northwest wind 3 to 6 mph. Chance of precipitation is 10%.
Thursday Night
Mostly clear, with a low around 68. Calm wind.
Friday
Sunny, with a high near 89. Calm wind becoming south southwest 5 to 7 mph in the morning.
Friday Night
Mostly clear, with a low around 74. South wind around 6 mph.
Saturday
Sunny, with a high near 93. South southwest wind 6 to 11 mph, with gusts as high as 18 mph.
Saturday Night
Mostly clear, with a low around 76. South southwest wind 6 to 8 mph.
Sunday
Sunny, with a high near 94. South southwest wind 6 to 9 mph.
Sunday Night
Mostly clear, with a low around 75. South wind 3 to 6 mph.
Monday
A chance of showers and thunderstorms. Sunny, with a high near 92. South southwest wind 3 to 8 mph.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Nason IL
 38.18°N 88.98°W
6:17 pm CDT Jun 16, 2025
6pm CDT Jun 16, 2025-6pm CDT Jun 23, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database