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August 2026 Upper Mississippi River Valley Weather Summary

Current conditions at

Baraboo Wisconsin Dells Airport (KDLL)

Lat: 43.52°NLon: 89.77°WElev: 971ft.

Mostly Cloudy

69°F

21°C

Humidity	98%
Wind Speed	SE 3 mph
Barometer	29.89 in
Dewpoint	69°F (21°C)
Visibility	7.00 mi
Last update	4 Sep 2:55 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

3 Miles SW Briggsville WI

Overnight
Low: 68 °F
Showers
Likely
Friday
High: 87 °F
Chance
Showers then
Partly Sunny
Friday Night
Low: 68 °F
Slight Chance
T-storms then
Partly Cloudy
Saturday
High: 82 °F
Partly Sunny
Saturday Night
Low: 60 °F
Partly Cloudy
Sunday
High: 80 °F
Partly Sunny
Sunday Night
Low: 58 °F
Mostly Cloudy
Labor Day
High: 78 °F
Partly Sunny
Monday Night
Low: 61 °F
Mostly Cloudy
then Slight
Chance
Showers

Detailed Forecast

Overnight

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 68. Southeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday

A 30 percent chance of showers and thunderstorms, mainly before 8am. Partly sunny, with a high near 87. Heat index values as high as 95. Southwest wind 3 to 7 mph.

Friday Night

A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 68. Light and variable wind.

Saturday

Partly sunny, with a high near 82. Northeast wind 3 to 7 mph.

Saturday Night

Partly cloudy, with a low around 60. Northeast wind around 5 mph becoming calm in the evening.

Sunday

Partly sunny, with a high near 80. Calm wind becoming east around 5 mph in the afternoon.

Sunday Night

Mostly cloudy, with a low around 58. Light southeast wind.

Labor Day

Partly sunny, with a high near 78. Calm wind becoming southeast 5 to 7 mph in the morning.

Monday Night

A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 61. Southeast wind around 7 mph.

Tuesday

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80. South wind 8 to 10 mph, with gusts as high as 20 mph.

Tuesday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. South wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

Wednesday

Partly sunny, with a high near 84. West wind 6 to 10 mph.

Wednesday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61. West wind 5 to 7 mph.

Thursday

A 20 percent chance of showers. Mostly sunny, with a high near 77. Northwest wind 6 to 13 mph, with gusts as high as 21 mph.