Fire Weather Concerns West; Thunderstorms in the Upper Midwest

Dry and breezy conditions will enhance fire weather concerns across portions of the northern and central High Plains through Saturday, where fuels remain largely receptive. Severe thunderstorms are possible across portions of central Nebraska to the Upper Midwest this Friday afternoon into tonight. Read More >

Current conditions at

Waukesha County Airport (KUES)

Lat: 43.04°NLon: 88.25°WElev: 886ft.

Mostly Cloudy

66°F

19°C

Humidity 78%
Wind Speed SE 2 mph
Barometer 30.04 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 10 Sep 10:35 pm CDT
Extended Forecast for

Sullivan WI

  • Tonight

    Tonight: Mostly clear, with a low around 54. Calm wind.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 80. Light south wind increasing to 5 to 10 mph in the morning.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61. Southeast wind around 5 mph.

    Low: 61 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 81. South wind 5 to 10 mph becoming west in the afternoon.

    High: 81 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 55. West wind around 5 mph becoming calm  in the evening.

    Low: 55 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm.  Partly sunny, with a high near 75. Calm wind becoming north around 5 mph in the afternoon.

    High: 75 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers, mainly after 1am.  Partly cloudy, with a low around 53. North wind around 5 mph becoming calm.

    Low: 53 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm.  Partly sunny, with a high near 75. Southeast wind 10 to 15 mph.  Chance of precipitation is 50%.

    High: 75 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 62. Chance of precipitation is 70%.

    Low: 62 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 54. Calm wind.
Friday
Sunny, with a high near 80. Light south wind increasing to 5 to 10 mph in the morning.
Friday Night
Partly cloudy, with a low around 61. Southeast wind around 5 mph.
Saturday
Partly sunny, with a high near 81. South wind 5 to 10 mph becoming west in the afternoon.
Saturday Night
Partly cloudy, with a low around 55. West wind around 5 mph becoming calm in the evening.
Sunday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 75. Calm wind becoming north around 5 mph in the afternoon.
Sunday Night
A 30 percent chance of showers, mainly after 1am. Partly cloudy, with a low around 53. North wind around 5 mph becoming calm.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 75. Southeast wind 10 to 15 mph. Chance of precipitation is 50%.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Tuesday
A 40 percent chance of showers. Mostly cloudy, with a high near 74.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 54.
Wednesday
A 30 percent chance of showers. Mostly cloudy, with a high near 69.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 56.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
Sullivan WI
 43.02°N 88.6°W (Elev. 846 ft)
9:33 pm CDT Sep 10, 2026
10pm CDT Sep 10, 2026-6pm CDT Sep 17, 2026
 
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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