Birnamwood, WI Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Birnamwood, WI in one place.
Mostly sunny, with a high near 83. Heat index values as high as 82. North northwest wind around 12 mph, with gusts as high as 20 mph.
Local Weather Overview
This forecast page for Birnamwood, 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 16, 2026 9:31 PM CDT.
The active forecast window currently covers Jul 18 to Jul 23, 2026 for Birnamwood, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 23, 2026
- Latest sync
- Jul 16, 2026 9:31 PM CDT
- Forecast office
- GRB
- Source
- NOAA / NWS
Daily Outlook
This Week in Birnamwood
Monday looks like the warmest upcoming period in Birnamwood at 84 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 54 degrees F.
The strongest winds are forecast for Monday at about 9 to 15 mph WSW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 16, 2026 9:31 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- GRB
- Radar station
- KGRB
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 57. North northeast wind 1 to 9 mph, with gusts as high as 18 mph.
Sunny, with a high near 83.
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 62. Chance of precipitation is 40%.
Sunny, with a high near 78.
Mostly clear, with a low around 54.
Sunny, with a high near 77.
Mostly clear, with a low around 54.
Sunny, with a high near 79.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 18
|
Mostly Sunny
|
83°F |
12 mph
NNW
|
|
Saturday Night
Jul 18
|
Mostly Clear
|
57°F |
1 to 9 mph
NNE
|
|
Sunday
Jul 19
|
Sunny
|
83°F |
1 to 5 mph
SE
|
|
Sunday Night
Jul 19
|
Partly Cloudy then Chance Showers And Thunderstorms
|
63°F |
3 to 8 mph
SSW
|
|
Monday
Jul 20
|
Chance Showers And Thunderstorms
|
84°F |
9 to 15 mph
WSW
|
|
Monday Night
Jul 20
|
Chance Showers And Thunderstorms
|
62°F |
9 to 13 mph
NW
|
|
Tuesday
Jul 21
|
Sunny
|
78°F |
12 to 15 mph
NW
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
54°F |
5 to 14 mph
NNW
|
|
Wednesday
Jul 22
|
Sunny
|
77°F |
8 mph
NW
|
|
Wednesday Night
Jul 22
|
Mostly Clear
|
54°F |
2 to 6 mph
WNW
|
|
Thursday
Jul 23
|
Sunny
|
79°F |
6 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Birnamwood.