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Hot Weather in the West; Heavy Rainfall and Flooding in the Southwest

Hot to extremely hot temperatures are in place much of this week across parts of California and the interior Northwest U.S, with the Pacific Northwest carrying the potential for record-breaking high temperatures. Monsoonal moisture over the Southwest U.S. may lead to heavy rainfall and instances of flash flooding through Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Baraboo Wisconsin Dells Airport (KDLL)

Lat: 43.52°NLon: 89.77°WElev: 971ft.

Fair

73°F

23°C

Humidity 65%
Wind Speed SW 5 mph
Barometer 30.11 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 2 Sep 10:35 am CDT
Extended Forecast for

Portage WI

  • Today

    Today: Mostly sunny, with a high near 77. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 58. Southwest wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Mostly Cloudy
    then Showers
    Likely

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Mostly cloudy, with a high near 69. Southwest wind 5 to 10 mph becoming northwest in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 69 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41. Northwest wind 5 to 10 mph.

    Low: 41 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 63. West wind 5 to 10 mph.

    High: 63 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers likely. Mostly cloudy, with a low around 48. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Showers
    Likely

  • Friday

    Friday: Partly sunny, with a high near 62. West wind 10 to 15 mph.

    High: 62 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 44. West wind 5 to 10 mph.

    Low: 44 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 77. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
A chance of showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 58. Southwest wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Mostly cloudy, with a high near 69. Southwest wind 5 to 10 mph becoming northwest in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Partly cloudy, with a low around 41. Northwest wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 63. West wind 5 to 10 mph.
Thursday Night
Showers likely. Mostly cloudy, with a low around 48. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Partly sunny, with a high near 62. West wind 10 to 15 mph.
Friday Night
Partly cloudy, with a low around 44. West wind 5 to 10 mph.
Saturday
Mostly sunny, with a high near 64.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Sunny, with a high near 68.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Mostly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Portage WI
 43.55°N 89.49°W (Elev. 787 ft)
Last Update:
9:38 am CDT Sep 2, 2025
Forecast Valid:
10am CDT Sep 2, 2025-6pm CDT Sep 8, 2025
 
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