Onalaska, WI Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Onalaska, WI in one place.
Mostly sunny, with a high near 51. Northwest 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: Apr 9, 2026 1:44 PM CDT.
The active forecast window currently covers Apr 10 to Apr 15, 2026 for Onalaska, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 10 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 1:44 PM CDT
- Forecast office
- ARX
- Source
- NOAA / NWS
Daily Outlook
This Week in Onalaska
Monday looks like the warmest upcoming period in Onalaska at 78 degrees F.
Friday Night is the coolest period ahead with temperatures near 33 degrees F.
The strongest winds are forecast for Sunday at about 14 to 21 mph S.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 1:44 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
Mostly clear, with a low around 33. Southwest wind 1 to 6 mph.
A chance of rain showers between 1pm and 4pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 57. Southeast wind 1 to 14 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms. Cloudy, with a low around 50. South wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms. Mostly cloudy, with a high near 73. South wind 14 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 60. Southwest wind 9 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
A slight chance of rain showers before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 78. Southwest wind around 8 mph. Chance of precipitation is 30%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 58. South wind around 8 mph. Chance of precipitation is 70%.
Showers and thunderstorms likely. Partly sunny, with a high near 74. South wind around 8 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 51. South wind around 9 mph. Chance of precipitation is 70%.
Rain showers likely. Partly sunny, with a high near 65. Southwest wind around 9 mph, with gusts as high as 18 mph. Chance of precipitation is 60%.
A chance of rain showers. Partly cloudy, with a low around 47. Southwest wind around 8 mph. Chance of precipitation is 50%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 10
|
Mostly Sunny
|
51°F |
9 mph
NW
|
|
Friday Night
Apr 10
|
Mostly Clear
|
33°F |
1 to 6 mph
SW
|
|
Saturday
Apr 11
|
Partly Sunny then Chance Showers And Thunderstorms
|
57°F |
1 to 14 mph
SE
|
|
Saturday Night
Apr 11
|
Showers And Thunderstorms
|
50°F |
14 mph
S
|
|
Sunday
Apr 12
|
Showers And Thunderstorms
|
73°F |
14 to 21 mph
S
|
|
Sunday Night
Apr 12
|
Showers And Thunderstorms Likely
|
60°F |
9 to 18 mph
SW
|
|
Monday
Apr 13
|
Chance Showers And Thunderstorms
|
78°F |
8 mph
SW
|
|
Monday Night
Apr 13
|
Showers And Thunderstorms Likely
|
58°F |
8 mph
S
|
|
Tuesday
Apr 14
|
Showers And Thunderstorms Likely
|
74°F |
8 mph
S
|
|
Tuesday Night
Apr 14
|
Showers And Thunderstorms Likely
|
51°F |
9 mph
S
|
|
Wednesday
Apr 15
|
Rain Showers Likely
|
65°F |
9 mph
SW
|
|
Wednesday Night
Apr 15
|
Chance Rain Showers
|
47°F |
8 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Onalaska.
