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Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

92°F

33°C

Humidity 58%
Wind Speed SW 12 G 17 mph
Barometer 29.91 in (1012.5 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 25 Jun 10:56 am CDT
Extended Forecast for

Dahlgren IL

Heat Advisory June 25, 12:00pm until June 25, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 105. Southwest wind 10 to 13 mph.

    High: 98 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 71. Southwest wind 6 to 8 mph.

    Low: 71 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 86. South southwest wind 6 to 9 mph becoming north northwest in the afternoon. Chance of precipitation is 70%.

    High: 86 °F

    Showers
    Likely then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: A chance of thunderstorms before 7pm. Mostly clear, with a low around 65. North wind 5 to 7 mph. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms then
    Clear

  • Thursday

    Thursday: Sunny, with a high near 87. East northeast wind around 6 mph.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 65. East wind 3 to 5 mph.

    Low: 65 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 91. South wind 5 to 9 mph.

    High: 91 °F

    Partly Sunny

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75. South wind 6 to 8 mph.

    Low: 75 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms. Mostly sunny, with a high near 94. West southwest wind 8 to 10 mph.

    High: 94 °F

    Chance
    T-storms

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 105. Southwest wind 10 to 13 mph.
Tonight
A 50 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 71. Southwest wind 6 to 8 mph.
Wednesday
Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 86. South southwest wind 6 to 9 mph becoming north northwest in the afternoon. Chance of precipitation is 70%.
Wednesday Night
A chance of thunderstorms before 7pm. Mostly clear, with a low around 65. North wind 5 to 7 mph. Chance of precipitation is 30%.
Thursday
Sunny, with a high near 87. East northeast wind around 6 mph.
Thursday Night
Partly cloudy, with a low around 65. East wind 3 to 5 mph.
Friday
Partly sunny, with a high near 91. South wind 5 to 9 mph.
Friday Night
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75. South wind 6 to 8 mph.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 94. West southwest wind 8 to 10 mph.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. West southwest wind around 6 mph becoming northwest after midnight.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. North wind 6 to 8 mph.
Sunday Night
Partly cloudy, with a low around 64. North northeast wind around 6 mph.
Monday
Mostly sunny, with a high near 89. East wind around 7 mph.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Dahlgren IL
 38.19°N 88.7°W
Last Update:
10:47 am CDT Jun 25, 2024
Forecast Valid:
11am CDT Jun 25, 2024-6pm CDT Jul 1, 2024
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation