McMillan, WI Weather Forecast
Local 7-day forecast
Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for McMillan, WI in one place.
Showers and thunderstorms likely. Mostly cloudy, with a high near 77. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
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: Aug 27, 2026 7:04 PM CDT.
The active forecast window currently covers Aug 29 to Sep 2, 2026 for McMillan, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 2, 2026
- Latest sync
- Aug 27, 2026 7:04 PM CDT
- Forecast office
- GRB
- Source
- NOAA / NWS
Daily Outlook
This Week in McMillan
Monday looks like the warmest upcoming period in McMillan at 86 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Saturday at about 5 to 10 mph S.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 27, 2026 7:04 PM CDT
- Coverage
- 5 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
Showers and thunderstorms likely before 1am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.
A chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 20%.
A chance of rain showers. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
A chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
A chance of rain showers before 1pm, 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 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Showers And Thunderstorms Likely
|
77°F |
5 to 10 mph
S
|
|
Saturday Night
Aug 29
|
Showers And Thunderstorms Likely
|
63°F |
9 mph
SSE
|
|
Sunday
Aug 30
|
Chance Showers And Thunderstorms
|
84°F |
9 mph
S
|
|
Sunday Night
Aug 30
|
Chance Showers And Thunderstorms
|
68°F |
8 mph
SSE
|
|
Monday
Aug 31
|
Slight Chance Showers And Thunderstorms
|
86°F |
9 mph
SSW
|
|
Monday Night
Aug 31
|
Chance Rain Showers
|
65°F |
3 to 7 mph
NNE
|
|
Tuesday
Sep 1
|
Slight Chance Showers And Thunderstorms
|
84°F |
3 to 8 mph
N
|
|
Tuesday Night
Sep 1
|
Chance Showers And Thunderstorms
|
62°F |
2 to 6 mph
SE
|
|
Wednesday
Sep 2
|
Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
83°F |
2 to 6 mph
NW
|
|
Wednesday Night
Sep 2
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
62°F |
5 mph
ESE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around McMillan.