Onalaska, WA Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Onalaska, WA in one place.
Mostly sunny, with a high near 72. Southwest wind around 6 mph.
Local Weather Overview
This forecast page for Onalaska, WA 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 19, 2026 3:44 PM PDT.
The active forecast window currently covers Jun 20 to Jun 25, 2026 for Onalaska, WA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 20 to Jun 25, 2026
- Latest sync
- Jun 19, 2026 3:44 PM PDT
- Forecast office
- SEW
- Source
- NOAA / NWS
Daily Outlook
This Week in Onalaska
Tuesday looks like the warmest upcoming period in Onalaska at 93 degrees F.
Saturday Night is the coolest period ahead with temperatures near 47 degrees F.
The strongest winds are forecast for Wednesday at about 0 to 7 mph NW.
The forecast from Jun 20 through Jun 25 stays mostly dry.
Forecast Details
- Last updated
- Jun 19, 2026 3:44 PM PDT
- Coverage
- 7 days
- Time zone
- America/Los_Angeles
- Forecast office
- SEW
- Radar station
- KRTX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Areas of fog after 2am. Partly cloudy, with a low around 47. Northwest wind 0 to 6 mph.
Areas of fog before 8am. Mostly sunny, with a high near 80. North northwest wind 0 to 6 mph.
Clear, with a low around 51.
Sunny, with a high near 90.
Mostly clear, with a low around 57.
Sunny, with a high near 93.
Mostly clear, with a low around 56.
Sunny, with a high near 85.
Partly cloudy, with a low around 50.
Mostly sunny, with a high near 78.
Partly cloudy, with a low around 49.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jun 20
|
Mostly Sunny
|
72°F |
6 mph
SW
|
|
Saturday Night
Jun 20
|
Partly Cloudy then Areas Of Fog
|
47°F |
0 to 6 mph
NW
|
|
Sunday
Jun 21
|
Areas Of Fog then Mostly Sunny
|
80°F |
0 to 6 mph
NNW
|
|
Sunday Night
Jun 21
|
Clear
|
51°F |
1 to 6 mph
N
|
|
Monday
Jun 22
|
Sunny
|
90°F |
1 to 6 mph
N
|
|
Monday Night
Jun 22
|
Mostly Clear
|
57°F |
0 to 6 mph
N
|
|
Tuesday
Jun 23
|
Sunny
|
93°F |
0 to 6 mph
NNW
|
|
Tuesday Night
Jun 23
|
Mostly Clear
|
56°F |
0 to 6 mph
NNW
|
|
Wednesday
Jun 24
|
Sunny
|
85°F |
0 to 7 mph
NW
|
|
Wednesday Night
Jun 24
|
Partly Cloudy
|
50°F |
0 to 7 mph
NW
|
|
Thursday
Jun 25
|
Mostly Sunny
|
78°F |
0 to 6 mph
NW
|
|
Thursday Night
Jun 25
|
Partly Cloudy
|
49°F |
0 to 6 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Onalaska.