McMillan, WI Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for McMillan, WI in one place.
Sunny, with a high near 91. Heat index values as high as 98. West wind around 9 mph.
Local Weather Overview
This forecast page for McMillan, 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 6:37 PM CDT.
The active forecast window currently covers Jul 14 to Jul 20, 2026 for McMillan, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 20, 2026
- Latest sync
- Jul 14, 2026 6:37 PM CDT
- Forecast office
- GRB
- Source
- NOAA / NWS
Daily Outlook
This Week in McMillan
This Afternoon looks like the warmest upcoming period in McMillan at 91 degrees F.
Monday Night is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Monday at about 6 to 12 mph W.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 14, 2026 6:37 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- GRB
- Radar station
- KARX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 69. Heat index values as high as 96. West wind 5 to 8 mph.
Smoke after 9am. Mostly sunny, with a high near 91. Heat index values as high as 94. North northwest wind around 5 mph.
Smoke. Partly cloudy, with a low around 65. Northeast wind around 3 mph.
Smoke before 1pm, then areas of smoke and a slight chance of rain showers between 1pm and 4pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. East southeast wind around 5 mph. Chance of precipitation is 20%.
A chance of showers and thunderstorms before 10pm, then a chance of showers and thunderstorms between 10pm and 1am. Partly cloudy, with a low around 65. Chance of precipitation is 40%.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly clear, with a low around 67. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
Mostly clear, with a low around 62.
Mostly sunny, with a high near 84.
A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 83. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 60. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Jul 14
|
Sunny
|
91°F |
9 mph
W
|
|
Tonight
Jul 14
|
Mostly Clear
|
69°F |
5 to 8 mph
W
|
|
Wednesday
Jul 15
|
Smoke
|
91°F |
5 mph
NNW
|
|
Wednesday Night
Jul 15
|
Smoke
|
65°F |
3 mph
NE
|
|
Thursday
Jul 16
|
Smoke then Slight Chance Showers And Thunderstorms
|
88°F |
5 mph
ESE
|
|
Thursday Night
Jul 16
|
Chance Showers And Thunderstorms
|
65°F |
6 mph
ESE
|
|
Friday
Jul 17
|
Mostly Sunny then Chance Showers And Thunderstorms
|
88°F |
7 mph
SSE
|
|
Friday Night
Jul 17
|
Chance Showers And Thunderstorms
|
67°F |
6 mph
SSW
|
|
Saturday
Jul 18
|
Chance Showers And Thunderstorms then Mostly Sunny
|
86°F |
9 mph
NW
|
|
Saturday Night
Jul 18
|
Mostly Clear
|
62°F |
3 to 8 mph
NNE
|
|
Sunday
Jul 19
|
Mostly Sunny
|
84°F |
6 mph
S
|
|
Sunday Night
Jul 19
|
Slight Chance Showers And Thunderstorms
|
64°F |
6 mph
SW
|
|
Monday
Jul 20
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
83°F |
6 to 12 mph
W
|
|
Monday Night
Jul 20
|
Slight Chance Showers And Thunderstorms
|
60°F |
7 to 10 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around McMillan.