McMillan, WI Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for McMillan, WI in one place.
Mostly sunny, with a high near 75. Heat index values as high as 75. East southeast wind around 14 mph, with gusts as high as 22 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: May 30, 2026 4:46 PM CDT.
The active forecast window currently covers May 30 to Jun 5, 2026 for McMillan, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 30 to Jun 5, 2026
- Latest sync
- May 30, 2026 4:46 PM CDT
- Forecast office
- GRB
- Source
- NOAA / NWS
Daily Outlook
This Week in McMillan
Wednesday looks like the warmest upcoming period in McMillan at 82 degrees F.
Tonight is the coolest period ahead with temperatures near 47 degrees F.
The strongest winds are forecast for This Afternoon at about 14 mph ESE.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- May 30, 2026 4:46 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
Partly cloudy, with a low around 47. East southeast wind 6 to 13 mph, with gusts as high as 21 mph.
Mostly sunny, with a high near 78. Heat index values as high as 78. Southeast wind around 8 mph.
Mostly cloudy, with a low around 52. East southeast wind 1 to 5 mph.
Partly sunny, with a high near 80. East northeast wind 2 to 6 mph.
Mostly clear, with a low around 50.
Sunny, with a high near 80.
Mostly clear, with a low around 50.
Mostly sunny, with a high near 82.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 56. Chance of precipitation is 20%.
A chance of showers and thunderstorms. Partly sunny, with a high near 80. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 80. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Chance of precipitation is 50%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
May 30
|
Mostly Sunny
|
75°F |
14 mph
ESE
|
|
Tonight
May 30
|
Partly Cloudy
|
47°F |
6 to 13 mph
ESE
|
|
Sunday
May 31
|
Mostly Sunny
|
78°F |
8 mph
SE
|
|
Sunday Night
May 31
|
Mostly Cloudy
|
52°F |
1 to 5 mph
ESE
|
|
Monday
Jun 1
|
Partly Sunny
|
80°F |
2 to 6 mph
ENE
|
|
Monday Night
Jun 1
|
Mostly Clear
|
50°F |
5 to 8 mph
E
|
|
Tuesday
Jun 2
|
Sunny
|
80°F |
6 mph
ESE
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
50°F |
5 mph
SSE
|
|
Wednesday
Jun 3
|
Mostly Sunny
|
82°F |
3 to 7 mph
S
|
|
Wednesday Night
Jun 3
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
56°F |
8 mph
S
|
|
Thursday
Jun 4
|
Chance Showers And Thunderstorms
|
80°F |
8 to 13 mph
SW
|
|
Thursday Night
Jun 4
|
Chance Showers And Thunderstorms
|
58°F |
7 to 12 mph
SW
|
|
Friday
Jun 5
|
Chance Showers And Thunderstorms
|
80°F |
10 mph
SW
|
|
Friday Night
Jun 5
|
Chance Showers And Thunderstorms
|
56°F |
6 to 9 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around McMillan.