Mountain, WI Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Mountain, WI in one place.
A chance of showers and thunderstorms. Partly sunny. High near 79, with temperatures falling to around 76 in the afternoon. Heat index values as high as 79. Southeast wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Mountain, 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: Jun 8, 2026 3:11 PM CDT.
The active forecast window currently covers Jun 8 to Jun 14, 2026 for Mountain, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 8 to Jun 14, 2026
- Latest sync
- Jun 8, 2026 3:11 PM CDT
- Forecast office
- GRB
- Source
- NOAA / NWS
Daily Outlook
This Week in Mountain
Wednesday looks like the warmest upcoming period in Mountain at 90 degrees F.
Sunday Night is the coolest period ahead with temperatures near 50 degrees F.
The strongest winds are forecast for Friday at about 5 to 12 mph W.
Precipitation is mentioned in 13 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 8, 2026 3:11 PM CDT
- Coverage
- 7 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 showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 11pm, then showers and thunderstorms. Mostly cloudy, with a low around 59. East northeast wind 1 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Showers and thunderstorms before 11am, then a slight chance of showers and thunderstorms between 11am and noon. Mostly cloudy. High near 85, with temperatures falling to around 83 in the afternoon. Heat index values as high as 87. North northeast wind 1 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 60. East wind around 2 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers and thunderstorms likely. Partly sunny, with a high near 90. South southeast wind 0 to 9 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 90%.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 56. Chance of precipitation is 40%.
Sunny, with a high near 82.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 56. Chance of precipitation is 20%.
A chance of showers and thunderstorms. Mostly sunny, with a high near 80. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 52. Chance of precipitation is 30%.
A slight chance of rain showers. Mostly sunny, with a high near 75. Chance of precipitation is 20%.
A slight chance of rain showers before 7pm. Partly cloudy, with a low around 50. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Jun 8
|
Chance Showers And Thunderstorms
|
79°F |
6 mph
SE
|
|
Tonight
Jun 8
|
Showers And Thunderstorms
|
59°F |
1 to 5 mph
ENE
|
|
Tuesday
Jun 9
|
Showers And Thunderstorms then Mostly Cloudy
|
85°F |
1 to 5 mph
NNE
|
|
Tuesday Night
Jun 9
|
Mostly Cloudy then Chance Showers And Thunderstorms
|
60°F |
2 mph
E
|
|
Wednesday
Jun 10
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
90°F |
0 to 9 mph
SSE
|
|
Wednesday Night
Jun 10
|
Showers And Thunderstorms
|
64°F |
3 to 9 mph
SW
|
|
Thursday
Jun 11
|
Chance Showers And Thunderstorms
|
84°F |
3 to 9 mph
WSW
|
|
Thursday Night
Jun 11
|
Chance Showers And Thunderstorms
|
56°F |
8 mph
WSW
|
|
Friday
Jun 12
|
Sunny
|
82°F |
5 to 12 mph
W
|
|
Friday Night
Jun 12
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
56°F |
3 to 9 mph
WSW
|
|
Saturday
Jun 13
|
Chance Showers And Thunderstorms
|
80°F |
3 to 8 mph
WSW
|
|
Saturday Night
Jun 13
|
Chance Showers And Thunderstorms
|
52°F |
1 to 6 mph
NW
|
|
Sunday
Jun 14
|
Slight Chance Rain Showers
|
75°F |
2 to 6 mph
NW
|
|
Sunday Night
Jun 14
|
Slight Chance Rain Showers then Partly Cloudy
|
50°F |
1 to 5 mph
WNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Mountain.