Grant County, WI Weather Forecast
County weather hub
Rain Showers Likely
Compare major city weather across Grant County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Rain showers likely. Mostly cloudy. High near 78, with temperatures falling to around 76 in the afternoon. South wind 7 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
County Weather Overview
This county weather page brings together forecast coverage for Grant 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 Grant County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Aug 29 to Sep 3, 2026
- Latest sync
- Aug 28, 2026 1:37 PM CDT
- Forecast office
- ARX
- Source
- NOAA / NWS
Daily Outlook
This Week in Grant County
Monday looks like the warmest upcoming period in Grant County at 87 degrees F.
Thursday Night is the coolest period ahead with temperatures near 67 degrees F.
The strongest winds are forecast for Saturday at about 7 to 15 mph S.
Precipitation is mentioned in 12 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 28, 2026 1:37 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- ARX
- Radar station
- KARX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68. South wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 86. South wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. South wind around 12 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 87. South wind around 12 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. Southwest wind 3 to 7 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86. Southwest wind around 6 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 68. South wind around 5 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 87. South wind 2 to 7 mph. Chance of precipitation is 40%.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69. East wind around 5 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86. South wind 6 to 9 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 67. South wind around 8 mph. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Rain Showers Likely
|
78°F |
7 to 15 mph
S
|
|
Saturday Night
Aug 29
|
Mostly Cloudy then Slight Chance Showers And Thunderstorms
|
68°F |
15 mph
S
|
|
Sunday
Aug 30
|
Slight Chance Showers And Thunderstorms
|
86°F |
14 mph
S
|
|
Sunday Night
Aug 30
|
Chance Showers And Thunderstorms
|
71°F |
12 mph
S
|
|
Monday
Aug 31
|
Chance Showers And Thunderstorms
|
87°F |
12 mph
S
|
|
Monday Night
Aug 31
|
Partly Cloudy then Chance Showers And Thunderstorms
|
71°F |
3 to 7 mph
SW
|
|
Tuesday
Sep 1
|
Chance Showers And Thunderstorms
|
86°F |
6 mph
SW
|
|
Tuesday Night
Sep 1
|
Chance Showers And Thunderstorms
|
68°F |
5 mph
S
|
|
Wednesday
Sep 2
|
Chance Showers And Thunderstorms then Mostly Sunny
|
87°F |
2 to 7 mph
S
|
|
Wednesday Night
Sep 2
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
69°F |
5 mph
E
|
|
Thursday
Sep 3
|
Slight Chance Showers And Thunderstorms
|
86°F |
6 to 9 mph
S
|
|
Thursday Night
Sep 3
|
Slight Chance Showers And Thunderstorms
|
67°F |
8 mph
S
|
Major City Forecasts
Live forecast snapshots for major cities across Grant County.
Coverage
Forecast coverage currently spans 2 of 2 mapped cities in Grant County.
Largest mapped city population in this region: 3,700.
