Union, WI Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Union, WI in one place.
Mostly cloudy, with a high near 77. Southeast wind 0 to 5 mph.
Local Weather Overview
This forecast page for Union, 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 1, 2026 1:56 AM CDT.
The active forecast window currently covers Jun 1 to Jun 7, 2026 for Union, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 1 to Jun 7, 2026
- Latest sync
- Jun 1, 2026 1:56 AM CDT
- Forecast office
- MPX
- Source
- NOAA / NWS
Daily Outlook
This Week in Union
Sunday looks like the warmest upcoming period in Union at 89 degrees F.
Monday Night is the coolest period ahead with temperatures near 54 degrees F.
The strongest winds are forecast for Thursday at about 10 to 15 mph SSW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 1, 2026 1:56 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- MPX
- Radar station
- KARX
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 54. Southeast wind 0 to 5 mph.
Sunny, with a high near 86. Southeast wind around 5 mph.
Mostly clear, with a low around 55. South southeast wind around 5 mph.
Mostly sunny, with a high near 88. South wind 5 to 10 mph.
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 61. South wind around 10 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7am, then showers and thunderstorms likely. Mostly cloudy, with a high near 84. South southwest wind 10 to 15 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 61. South southwest wind 5 to 10 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 86. South southwest wind 5 to 10 mph. Chance of precipitation is 60%.
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 61. South southeast wind around 5 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 87. South southeast wind 5 to 10 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 61. East southeast wind around 5 mph. Chance of precipitation is 40%.
A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 89. Southeast wind 5 to 10 mph. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Jun 1
|
Mostly Cloudy
|
77°F |
0 to 5 mph
SE
|
|
Monday Night
Jun 1
|
Partly Cloudy
|
54°F |
0 to 5 mph
SE
|
|
Tuesday
Jun 2
|
Sunny
|
86°F |
5 mph
SE
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
55°F |
5 mph
SSE
|
|
Wednesday
Jun 3
|
Mostly Sunny
|
88°F |
5 to 10 mph
S
|
|
Wednesday Night
Jun 3
|
Mostly Cloudy then Chance Showers And Thunderstorms
|
61°F |
10 mph
S
|
|
Thursday
Jun 4
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
84°F |
10 to 15 mph
SSW
|
|
Thursday Night
Jun 4
|
Showers And Thunderstorms Likely
|
61°F |
5 to 10 mph
SSW
|
|
Friday
Jun 5
|
Showers And Thunderstorms Likely
|
86°F |
5 to 10 mph
SSW
|
|
Friday Night
Jun 5
|
Chance Showers And Thunderstorms
|
61°F |
5 mph
SSE
|
|
Saturday
Jun 6
|
Chance Showers And Thunderstorms
|
87°F |
5 to 10 mph
SSE
|
|
Saturday Night
Jun 6
|
Chance Showers And Thunderstorms
|
61°F |
5 mph
ESE
|
|
Sunday
Jun 7
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
89°F |
5 to 10 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Union.