Onalaska, WI Weather Forecast
Local 7-day forecast
Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Onalaska, WI in one place.
Partly sunny. High near 81, with temperatures falling to around 78 in the afternoon. Southeast wind around 9 mph.
Local Weather Overview
This forecast page for Onalaska, 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: May 30, 2026 4:30 PM CDT.
The active forecast window currently covers May 31 to Jun 5, 2026 for Onalaska, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 31 to Jun 5, 2026
- Latest sync
- May 30, 2026 4:30 PM CDT
- Forecast office
- ARX
- Source
- NOAA / NWS
Daily Outlook
This Week in Onalaska
Wednesday looks like the warmest upcoming period in Onalaska at 86 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 55 degrees F.
The strongest winds are forecast for Thursday at about 7 to 10 mph SW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- May 30, 2026 4:30 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 rain showers after 1am. Mostly cloudy, with a low around 59. Southeast wind 0 to 8 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers before 7am. Mostly cloudy, with a high near 83. East wind 0 to 6 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Partly cloudy, with a low around 57. East wind around 6 mph.
Sunny, with a high near 84. Southeast wind around 7 mph.
Mostly clear, with a low around 55. Southeast wind 2 to 7 mph.
Mostly sunny, with a high near 86. South wind 2 to 7 mph.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 60. South wind around 7 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. Southwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Southwest wind 6 to 9 mph, with gusts as high as 20 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 85. Southwest wind around 8 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 61. South wind 3 to 7 mph. Chance of precipitation is 50%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
May 31
|
Partly Sunny
|
81°F |
9 mph
SE
|
|
Sunday Night
May 31
|
Mostly Cloudy then Slight Chance Rain Showers
|
59°F |
0 to 8 mph
SE
|
|
Monday
Jun 1
|
Slight Chance Rain Showers then Mostly Cloudy
|
83°F |
0 to 6 mph
E
|
|
Monday Night
Jun 1
|
Partly Cloudy
|
57°F |
6 mph
E
|
|
Tuesday
Jun 2
|
Sunny
|
84°F |
7 mph
SE
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
55°F |
2 to 7 mph
SE
|
|
Wednesday
Jun 3
|
Mostly Sunny
|
86°F |
2 to 7 mph
S
|
|
Wednesday Night
Jun 3
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
60°F |
7 mph
S
|
|
Thursday
Jun 4
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
84°F |
7 to 10 mph
SW
|
|
Thursday Night
Jun 4
|
Chance Showers And Thunderstorms
|
62°F |
6 to 9 mph
SW
|
|
Friday
Jun 5
|
Chance Showers And Thunderstorms
|
85°F |
8 mph
SW
|
|
Friday Night
Jun 5
|
Chance Showers And Thunderstorms
|
61°F |
3 to 7 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Onalaska.
