Portage County, WI Weather Forecast
County weather hub
Sunny
Compare major city weather across Portage County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 89.
County Weather Overview
This county weather page brings together forecast coverage for Portage County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 2 of 2 mapped cities in Portage County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 14 to Jul 15, 2026
- Latest sync
- Jul 9, 2026 3:42 PM CDT
- Forecast office
- GRB
- Source
- NOAA / NWS
Daily Outlook
This Week in Portage County
Tuesday looks like the warmest upcoming period in Portage County at 89 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 66 degrees F.
The strongest winds are forecast for Tuesday at about 5 to 9 mph W.
The forecast from Jul 14 through Jul 15 stays mostly dry.
Forecast Details
- Last updated
- Jul 9, 2026 3:42 PM CDT
- Coverage
- 2 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 68.
Sunny, with a high near 88.
Partly cloudy, with a low around 66.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Sunny
|
89°F |
5 to 9 mph
W
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
68°F |
5 to 8 mph
W
|
|
Wednesday
Jul 15
|
Sunny
|
88°F |
6 mph
W
|
|
Wednesday Night
Jul 15
|
Partly Cloudy
|
66°F |
5 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Portage County.
Coverage
Forecast coverage currently spans 2 of 2 mapped cities in Portage County.
Largest mapped city population in this region: 25,949.
