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August 2026 Upper Mississippi River Valley Weather Summary

Current conditions at

Viroqua Municipal Airport (KY51)

Lat: 43.58°NLon: 90.91°WElev: 1292ft.

Mostly Cloudy

78°F

26°C

Humidity	87%
Wind Speed	SE 6 mph
Barometer	29.94 in
Dewpoint	74°F (23°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	4 Sep 9:55 am CDT

More Information:

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

Extended Forecast for

5 Miles WNW Viola WI

Today
High: 88 °F
Slight Chance
T-storms
Tonight
Low: 68 °F
Slight Chance
T-storms then
Patchy Fog
Saturday
High: 86 °F
Areas Fog
then Mostly
Sunny
Saturday Night
Low: 63 °F
Partly Cloudy
Sunday
High: 83 °F
Partly Sunny
Sunday Night
Low: 61 °F
Mostly Cloudy
Labor Day
High: 82 °F
Slight Chance
Showers
Monday Night
Low: 63 °F
Mostly Cloudy
then Chance
Showers
Tuesday
High: 85 °F
Showers
Likely

Detailed Forecast

Today

A 20 percent chance of showers and thunderstorms, mainly between 1pm and 4pm. Mostly sunny, with a high near 88. Heat index values as high as 96. Southwest wind 7 to 9 mph.

Tonight

A slight chance of showers and thunderstorms between 10pm and 11pm. Patchy fog after 1am. Otherwise, partly cloudy, with a low around 68. Southwest wind around 5 mph becoming north after midnight. Chance of precipitation is 20%.

Saturday

Areas of fog before 10am. Otherwise, partly sunny, with a high near 86. Northeast wind 3 to 6 mph.

Saturday Night

Partly cloudy, with a low around 63. Calm wind.

Sunday

Partly sunny, with a high near 83. Calm wind becoming southeast around 5 mph in the afternoon.

Sunday Night

Mostly cloudy, with a low around 61. Light southeast wind.

Labor Day

A 20 percent chance of showers. Partly sunny, with a high near 82. Calm wind becoming south 5 to 7 mph in the morning.

Monday Night

A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. Southeast wind around 8 mph, with gusts as high as 18 mph.

Tuesday

Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 85. South wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

Tuesday Night

Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. South wind 5 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

Wednesday

Partly sunny, with a high near 86. West wind 3 to 8 mph.

Wednesday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61. Southwest wind around 5 mph becoming calm in the evening.

Thursday

A 20 percent chance of showers. Partly sunny, with a high near 80. Light northwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.