Sun Prairie, WI Weather Forecast
Local 7-day forecast
Mostly Clear
Track current conditions, temperature changes, wind, and the full daily outlook for Sun Prairie, WI in one place.
Mostly clear, with a low around 69. West wind around 5 mph.
Local Weather Overview
This forecast page for Sun Prairie, WI is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 14, 2026 3:06 AM CDT.
The active forecast window currently covers Jul 14 to Jul 20, 2026 for Sun Prairie, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 20, 2026
- Latest sync
- Jul 14, 2026 3:06 AM CDT
- Forecast office
- MKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Sun Prairie
Tuesday looks like the warmest upcoming period in Sun Prairie at 95 degrees F.
Sunday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Friday at about 5 to 10 mph S.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 14, 2026 3:06 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- MKX
- Radar station
- KMKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Sunny, with a high near 95. Heat index values as high as 99. West wind around 5 mph.
Mostly clear, with a low around 70. Heat index values as high as 97. West wind around 5 mph.
Mostly sunny, with a high near 95. Heat index values as high as 100. Northwest wind around 5 mph.
Partly cloudy, with a low around 70. Southeast wind 0 to 5 mph.
Sunny, with a high near 92. Northeast wind 0 to 5 mph.
Mostly clear, with a low around 69. East wind 0 to 5 mph.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. South wind 5 to 10 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a slight chance of showers and thunderstorms. Partly cloudy, with a low around 70. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 65. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms. Sunny, with a high near 84. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms. Mostly clear, with a low around 62. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 81. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jul 14
|
Mostly Clear
|
69°F |
5 mph
W
|
|
Tuesday
Jul 14
|
Sunny
|
95°F |
5 mph
W
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
70°F |
5 mph
W
|
|
Wednesday
Jul 15
|
Mostly Sunny
|
95°F |
5 mph
NW
|
|
Wednesday Night
Jul 15
|
Partly Cloudy
|
70°F |
0 to 5 mph
SE
|
|
Thursday
Jul 16
|
Sunny
|
92°F |
0 to 5 mph
NE
|
|
Thursday Night
Jul 16
|
Mostly Clear
|
69°F |
0 to 5 mph
E
|
|
Friday
Jul 17
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
91°F |
5 to 10 mph
S
|
|
Friday Night
Jul 17
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
70°F |
5 to 10 mph
SW
|
|
Saturday
Jul 18
|
Slight Chance Showers And Thunderstorms
|
88°F |
10 mph
NW
|
|
Saturday Night
Jul 18
|
Slight Chance Showers And Thunderstorms
|
65°F |
5 to 10 mph
NE
|
|
Sunday
Jul 19
|
Slight Chance Showers And Thunderstorms
|
84°F |
5 to 10 mph
NE
|
|
Sunday Night
Jul 19
|
Slight Chance Showers And Thunderstorms
|
62°F |
5 mph
S
|
|
Monday
Jul 20
|
Slight Chance Showers And Thunderstorms
|
81°F |
5 to 10 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Sun Prairie.
