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Severe Thunderstorms and Heavy Rain in Upper Midwest

A slow moving frontal boundary from the central Pains to the Upper Midwest will bring a potential for severe thunderstorms and heavy rain. Rain amounts of 1-3 inches, with locally heavier amounts can be expected. The threat of severe weather moves into the Ohio Valley and Northeast on Tuesday. Monsoon moisture continues to bring the threat of flash flooding to the Southwest and southern Rockies. Read More >

Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair

67°F

19°C

Humidity 95%
Wind Speed SW 6 mph
Barometer 30.03 in
Dewpoint 66°F (19°C)
Visibility 7.00 mi
Last update 21 Aug 4:15 am CDT
Extended Forecast for

La Salle IL

  • Today

    Today: A 50 percent chance of showers and thunderstorms, mainly between 9am and 3pm.  Mostly cloudy, with a high near 84. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 15 mph.

    Chance
    T-storms

    High: 84 °F

  • Tonight

    Tonight: Showers and thunderstorms, mainly after 1am. Some of the storms could produce heavy rain.  Low around 69. South wind around 10 mph becoming west after midnight. Winds could gust as high as 15 mph.  Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Heavy Rain

    Low: 69 °F

  • Tuesday

    Tuesday: Showers and thunderstorms likely before 1pm, then a slight chance of showers between 1pm and 4pm.  Cloudy, then gradually becoming mostly sunny, with a high near 78. West southwest wind around 10 mph becoming northwest in the afternoon. Winds could gust as high as 15 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    T-storms
    Likely then
    Chance
    Showers

    High: 78 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 55. North northwest wind 5 to 10 mph.

    Mostly Clear

    Low: 55 °F

  • Wednesday

    Wednesday: Sunny, with a high near 76. North northwest wind around 5 mph.

    Sunny

    High: 76 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 55.

    Mostly Clear

    Low: 55 °F

  • Thursday

    Thursday: Mostly sunny, with a high near 75.

    Mostly Sunny

    High: 75 °F

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 53.

    Partly Cloudy

    Low: 53 °F

  • Friday

    Friday: Sunny, with a high near 76.

    Sunny

    High: 76 °F

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms, mainly between 9am and 3pm. Mostly cloudy, with a high near 84. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 15 mph.
Tonight
Showers and thunderstorms, mainly after 1am. Some of the storms could produce heavy rain. Low around 69. South wind around 10 mph becoming west after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
Showers and thunderstorms likely before 1pm, then a slight chance of showers between 1pm and 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 78. West southwest wind around 10 mph becoming northwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Mostly clear, with a low around 55. North northwest wind 5 to 10 mph.
Wednesday
Sunny, with a high near 76. North northwest wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 55.
Thursday
Mostly sunny, with a high near 75.
Thursday Night
Partly cloudy, with a low around 53.
Friday
Sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 54.
Saturday
Mostly sunny, with a high near 78.
Saturday Night
Partly cloudy, with a low around 57.
Sunday
Partly sunny, with a high near 79.
Click Map For Forecast
Point Forecast:
La Salle IL
 41.34°N 89.09°W
3:17 am CDT Aug 21, 2017
4am CDT Aug 21, 2017-6pm CDT Aug 27, 2017
 
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