Prairie du Sac, WI Weather Forecast
Local 7-day forecast
Patchy Fog then Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Prairie du Sac, WI in one place.
Patchy fog before 8am. Mostly sunny, with a high near 95. Heat index values as high as 104. West wind 0 to 5 mph.
Local Weather Overview
This forecast page for Prairie du Sac, 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 10:03 PM CDT.
The active forecast window currently covers Jul 15 to Jul 21, 2026 for Prairie du Sac, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 15 to Jul 21, 2026
- Latest sync
- Jul 14, 2026 10:03 PM CDT
- Forecast office
- MKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Prairie du Sac
Wednesday looks like the warmest upcoming period in Prairie du Sac at 95 degrees F.
Monday Night is the coolest period ahead with temperatures near 65 degrees F.
The strongest winds are forecast for Saturday at about 5 to 10 mph W.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 14, 2026 10:03 PM 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
Smoke after 10pm. Partly cloudy, with a low around 70. Heat index values as high as 101. East wind 0 to 5 mph.
Smoke before 1pm, then areas of smoke and isolated showers and thunderstorms. Mostly sunny, with a high near 91. Heat index values as high as 95. South wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Areas of smoke and a slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 69. Southeast wind around 0 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers between 7am and 10am, then a chance of showers and thunderstorms between 10am and 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 91. South wind 0 to 5 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 71. Southwest wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 90. West wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 67. Chance of precipitation is 20%.
Mostly sunny, with a high near 88.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 67. Chance of precipitation is 20%.
A slight chance of rain showers. Mostly sunny, with a high near 87. Chance of precipitation is 20%.
A slight chance of rain showers. Partly cloudy, with a low around 65. Chance of precipitation is 20%.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 82. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jul 15
|
Patchy Fog then Mostly Sunny
|
95°F |
0 to 5 mph
W
|
|
Wednesday Night
Jul 15
|
Smoke
|
70°F |
0 to 5 mph
E
|
|
Thursday
Jul 16
|
Smoke
|
91°F |
0 to 5 mph
S
|
|
Thursday Night
Jul 16
|
Areas Of Smoke
|
69°F |
0 mph
|
|
Friday
Jul 17
|
Chance Showers And Thunderstorms
|
91°F |
0 to 5 mph
S
|
|
Friday Night
Jul 17
|
Chance Showers And Thunderstorms then Mostly Clear
|
71°F |
5 mph
SW
|
|
Saturday
Jul 18
|
Sunny then Slight Chance Showers And Thunderstorms
|
90°F |
5 to 10 mph
W
|
|
Saturday Night
Jul 18
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
67°F |
0 to 10 mph
N
|
|
Sunday
Jul 19
|
Mostly Sunny
|
88°F |
0 to 5 mph
SE
|
|
Sunday Night
Jul 19
|
Partly Cloudy then Slight Chance Rain Showers
|
67°F |
0 to 5 mph
SW
|
|
Monday
Jul 20
|
Slight Chance Rain Showers
|
87°F |
5 to 10 mph
W
|
|
Monday Night
Jul 20
|
Slight Chance Rain Showers
|
65°F |
5 to 10 mph
NW
|
|
Tuesday
Jul 21
|
Slight Chance Rain Showers then Mostly Sunny
|
82°F |
5 to 10 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Prairie du Sac.
