Marathon County, WI Weather Forecast
County weather hub
Partly Sunny
Compare major city weather across Marathon County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Partly sunny, with a high near 75. East wind around 13 mph, with gusts as high as 22 mph.
County Weather Overview
This county weather page brings together forecast coverage for Marathon County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 7 of 7 mapped cities in Marathon County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 30 to Jun 4, 2026
- Latest sync
- May 29, 2026 4:08 AM CDT
- Forecast office
- GRB
- Source
- NOAA / NWS
Daily Outlook
This Week in Marathon County
Thursday looks like the warmest upcoming period in Marathon County at 85 degrees F.
Saturday Night is the coolest period ahead with temperatures near 47 degrees F.
The strongest winds are forecast for Saturday at about 13 mph E.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- May 29, 2026 4:08 AM 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 cloudy, with a low around 47. East southeast wind 6 to 12 mph, with gusts as high as 20 mph.
Mostly sunny, with a high near 79.
Partly cloudy, with a low around 53.
Sunny, with a high near 83.
Mostly clear, with a low around 52.
Sunny, with a high near 80.
Mostly clear, with a low around 53.
Mostly sunny, with a high near 83.
Partly cloudy, with a low around 58.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
May 30
|
Partly Sunny
|
75°F |
13 mph
E
|
|
Saturday Night
May 30
|
Mostly Cloudy
|
47°F |
6 to 12 mph
ESE
|
|
Sunday
May 31
|
Mostly Sunny
|
79°F |
6 mph
SE
|
|
Sunday Night
May 31
|
Partly Cloudy
|
53°F |
2 mph
WSW
|
|
Monday
Jun 1
|
Sunny
|
83°F |
3 to 7 mph
ENE
|
|
Monday Night
Jun 1
|
Mostly Clear
|
52°F |
7 mph
E
|
|
Tuesday
Jun 2
|
Sunny
|
80°F |
5 mph
ESE
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
53°F |
5 mph
SE
|
|
Wednesday
Jun 3
|
Mostly Sunny
|
83°F |
3 to 7 mph
S
|
|
Wednesday Night
Jun 3
|
Partly Cloudy
|
58°F |
6 mph
S
|
|
Thursday
Jun 4
|
Mostly Sunny then Chance Showers And Thunderstorms
|
85°F |
5 to 12 mph
SSW
|
Major City Forecasts
Live forecast snapshots for major cities across Marathon County.
Coverage
Forecast coverage currently spans 7 of 7 mapped cities in Marathon County.
Largest mapped city population in this region: 8,143.
