Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Madison, Dane County Regional-Truax Field (KMSN)

Lat: 43.14°NLon: 89.35°WElev: 860ft.

Fair

69°F

21°C

Humidity	63%
Wind Speed	S 10 mph
Barometer	30.02 in (1016.0 mb)
Dewpoint	56°F (13°C)
Visibility	10.00 mi
Last update	24 Jul 11:53 pm CDT

More Information:

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

Extended Forecast for

Sun Prairie WI

Overnight
Low: 61 °F
Increasing
Clouds
Saturday
High: 85 °F
Partly Sunny
Saturday Night
Low: 69 °F
Partly Cloudy
Sunday
High: 91 °F
Hot
Sunday Night
Low: 72 °F
Slight Chance
T-storms then
Showers
Likely
Monday
High: 91 °F
Chance
Showers
Monday Night
Low: 67 °F
Partly Cloudy
Tuesday
High: 86 °F
Mostly Sunny
Tuesday Night
Low: 64 °F
Mostly Clear

Detailed Forecast

Overnight

Increasing clouds, with a low around 61. Calm wind becoming south around 5 mph.

Saturday

Partly sunny, with a high near 85. Southwest wind 5 to 10 mph.

Saturday Night

Partly cloudy, with a low around 69. Southwest wind around 5 mph.

Sunday

Partly sunny and hot, with a high near 91. Heat index values as high as 101. Southwest wind 5 to 10 mph.

Sunday Night

A slight chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Mostly cloudy, with a low around 72. West wind 5 to 10 mph becoming south in the evening. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday

A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm. Mostly sunny and hot, with a high near 91. West wind around 10 mph. Chance of precipitation is 30%.

Monday Night

Partly cloudy, with a low around 67. Northwest wind 5 to 10 mph becoming north in the evening.

Tuesday

Mostly sunny, with a high near 86. North wind around 5 mph.

Tuesday Night

Mostly clear, with a low around 64.

Wednesday

Sunny, with a high near 87.

Wednesday Night

Mostly clear, with a low around 65.

Thursday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.