Marathon County, WI Weather Forecast
County weather hub
Mostly Sunny then Chance Rain Showers
Compare major city weather across Marathon County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of rain showers after 1pm. Mostly sunny, with a high near 55. South southeast wind 1 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
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
- Apr 11 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 4:03 PM CDT
- Forecast office
- GRB
- Source
- NOAA / NWS
Daily Outlook
This Week in Marathon County
Monday looks like the warmest upcoming period in Marathon County at 74 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 42 degrees F.
The strongest winds are forecast for Sunday at about 12 to 17 mph S.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 4:03 PM CDT
- Coverage
- 5 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
A chance of rain showers before 7pm, then showers and thunderstorms. Mostly cloudy, with a low around 43. Chance of precipitation is 90%.
Showers and thunderstorms. Mostly cloudy, with a high near 68. Chance of precipitation is 90%.
Showers and thunderstorms likely before 7pm, then rain likely. Mostly cloudy, with a low around 59. Chance of precipitation is 70%.
A chance of rain. Mostly sunny, with a high near 74. Chance of precipitation is 30%.
A chance of rain before 7pm, then rain and a chance of thunderstorms. Mostly cloudy, with a low around 51. Chance of precipitation is 80%.
Rain likely and a slight chance of thunderstorms. Mostly cloudy, with a high near 64. Chance of precipitation is 70%.
Rain likely before 7pm, then rain likely and a slight chance of thunderstorms. Mostly cloudy, with a low around 44. Chance of precipitation is 70%.
Rain likely. Mostly cloudy, with a high near 60. Chance of precipitation is 70%.
A chance of rain. Mostly cloudy, with a low around 42. Chance of precipitation is 50%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Apr 11
|
Mostly Sunny then Chance Rain Showers
|
55°F |
1 to 10 mph
SSE
|
|
Saturday Night
Apr 11
|
Showers And Thunderstorms
|
43°F |
12 mph
SSE
|
|
Sunday
Apr 12
|
Showers And Thunderstorms
|
68°F |
12 to 17 mph
S
|
|
Sunday Night
Apr 12
|
Showers And Thunderstorms Likely then Light Rain Likely
|
59°F |
10 to 17 mph
SW
|
|
Monday
Apr 13
|
Chance Light Rain
|
74°F |
10 mph
SW
|
|
Monday Night
Apr 13
|
Light Rain
|
51°F |
10 mph
SE
|
|
Tuesday
Apr 14
|
Light Rain Likely
|
64°F |
12 mph
E
|
|
Tuesday Night
Apr 14
|
Light Rain Likely
|
44°F |
12 mph
SE
|
|
Wednesday
Apr 15
|
Light Rain Likely
|
60°F |
13 mph
SSW
|
|
Wednesday Night
Apr 15
|
Chance Light Rain
|
42°F |
10 mph
SW
|
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.
