Junction City, WI Weather Forecast
Local 7-day forecast
Rain Showers Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Junction City, WI in one place.
Rain showers likely before 4pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 77. Heat index values as high as 76. South southwest wind 5 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Local Weather Overview
This forecast page for Junction City, 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: Aug 27, 2026 8:00 PM CDT.
The active forecast window currently covers Aug 29 to Sep 3, 2026 for Junction City, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 3, 2026
- Latest sync
- Aug 27, 2026 8:00 PM CDT
- Forecast office
- GRB
- Source
- NOAA / NWS
Daily Outlook
This Week in Junction City
Monday looks like the warmest upcoming period in Junction City at 87 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Saturday at about 5 to 13 mph SSW.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 27, 2026 8:00 PM 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
Showers and thunderstorms likely before 1am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 64. South wind 8 to 12 mph, with gusts as high as 18 mph. Chance of precipitation is 60%.
A chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 87. Chance of precipitation is 20%.
A chance of rain showers after 7pm. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
A chance of rain showers before 7am. Partly sunny, with a high near 84. Chance of precipitation is 30%.
A chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.
A chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 83. Chance of precipitation is 40%.
A slight chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms between 7am and 1pm. Partly sunny, with a high near 82. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Rain Showers Likely
|
77°F |
5 to 13 mph
SSW
|
|
Saturday Night
Aug 29
|
Showers And Thunderstorms Likely
|
64°F |
8 to 12 mph
S
|
|
Sunday
Aug 30
|
Chance Showers And Thunderstorms
|
85°F |
10 mph
SSW
|
|
Sunday Night
Aug 30
|
Chance Showers And Thunderstorms
|
68°F |
9 mph
SSE
|
|
Monday
Aug 31
|
Slight Chance Showers And Thunderstorms
|
87°F |
10 mph
SSW
|
|
Monday Night
Aug 31
|
Chance Rain Showers
|
67°F |
3 to 8 mph
NW
|
|
Tuesday
Sep 1
|
Chance Rain Showers then Partly Sunny
|
84°F |
3 to 9 mph
WNW
|
|
Tuesday Night
Sep 1
|
Chance Showers And Thunderstorms
|
63°F |
2 to 7 mph
SE
|
|
Wednesday
Sep 2
|
Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
83°F |
2 to 7 mph
NW
|
|
Wednesday Night
Sep 2
|
Slight Chance Showers And Thunderstorms
|
62°F |
6 mph
E
|
|
Thursday
Sep 3
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
82°F |
5 to 9 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Junction City.