Amherst Junction, WI Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Amherst Junction, WI in one place.
Mostly sunny, with a high near 81. Heat index values as high as 81. Southwest wind 2 to 9 mph.
Local Weather Overview
This forecast page for Amherst Junction, 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: Jul 23, 2026 10:27 AM CDT.
The active forecast window currently covers Jul 24 to Jul 29, 2026 for Amherst Junction, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 24 to Jul 29, 2026
- Latest sync
- Jul 23, 2026 10:27 AM CDT
- Forecast office
- GRB
- Source
- NOAA / NWS
Daily Outlook
This Week in Amherst Junction
Sunday looks like the warmest upcoming period in Amherst Junction at 90 degrees F.
Friday Night is the coolest period ahead with temperatures near 61 degrees F.
The strongest winds are forecast for Monday at about 8 to 12 mph W.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 23, 2026 10:27 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
Partly cloudy, with a low around 61. South southwest wind 6 to 9 mph.
Mostly sunny, with a high near 85. West southwest wind 7 to 10 mph.
Mostly clear, with a low around 66.
Mostly sunny, with a high near 90.
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 70. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 50%.
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 64. Chance of precipitation is 20%.
Mostly sunny, with a high near 85.
Mostly clear, with a low around 61.
Sunny, with a high near 85.
Mostly clear, with a low around 62.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 24
|
Mostly Sunny
|
81°F |
2 to 9 mph
SW
|
|
Friday Night
Jul 24
|
Partly Cloudy
|
61°F |
6 to 9 mph
SSW
|
|
Saturday
Jul 25
|
Mostly Sunny
|
85°F |
7 to 10 mph
WSW
|
|
Saturday Night
Jul 25
|
Mostly Clear
|
66°F |
1 to 6 mph
W
|
|
Sunday
Jul 26
|
Mostly Sunny
|
90°F |
1 to 8 mph
SW
|
|
Sunday Night
Jul 26
|
Chance Showers And Thunderstorms
|
70°F |
7 mph
SW
|
|
Monday
Jul 27
|
Chance Showers And Thunderstorms
|
89°F |
8 to 12 mph
W
|
|
Monday Night
Jul 27
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
64°F |
3 to 12 mph
N
|
|
Tuesday
Jul 28
|
Mostly Sunny
|
85°F |
6 mph
N
|
|
Tuesday Night
Jul 28
|
Mostly Clear
|
61°F |
1 to 5 mph
NE
|
|
Wednesday
Jul 29
|
Sunny
|
85°F |
2 to 6 mph
NNW
|
|
Wednesday Night
Jul 29
|
Mostly Clear
|
62°F |
2 to 6 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Amherst Junction.