Onalaska, WI 54650 Weather

La Crosse County3:37 PM CDT43.90°N, 91.23°W

Current conditions

Clear
68°
Clear
Feels like 68°
High 69°·Low 46°
WindSSW 13 mph
Humidity40%
Dew point43°
Pressure30.30 inHg
Visibility10 mi
Cloud cover1%
UV index2 Low
Sunrise7:26 AM
Sunset6:15 PM

Observed at La Crosse - La Crosse Regional Airport · 1 hr ago

Forecast

10-day

  • This Afternoon

    Sunny. High near 69, with temperatures falling to around 67 in the afternoon. South wind 2 to 6 mph.

  • Tonight

    Patchy fog after 1am. Mostly clear. Low around 46, with temperatures rising to around 48 overnight. Southeast wind around 3 mph.

  • Wednesday

    Patchy fog before 10am. Sunny, with a high near 71. South wind around 2 mph.

National Weather Service forecast updated 3 hrs ago.

Hourly

Hourly forecast
  1. Now Sunny 69°
  2. 4 PM Sunny 69°
  3. 5 PM Sunny 67°
  4. 6 PM Clear 63°
  5. 7 PM Clear 59°
  6. 8 PM Clear 55°
  7. 9 PM Clear 53°
  8. 10 PM Clear 51°
  9. 11 PM Clear 50°
  10. Wed12 AM Clear 49°
  11. 1 AM Patchy Fog 49°
  12. 2 AM Patchy Fog 49°
  13. 3 AM Patchy Fog 48°
  14. 4 AM Patchy Fog 48°
  15. 5 AM Patchy Fog 48°
  16. 6 AM Patchy Fog 48°
  17. 7 AM Patchy Fog 47°
  18. 8 AM Patchy Fog 46°
  19. 9 AM Patchy Fog 49°
  20. 10 AM Sunny 55°
  21. 11 AM Sunny 60°
  22. 12 PM Sunny 64°
  23. 1 PM Sunny 68°
  24. 2 PM Sunny 70°

10-day forecast

Details
  1. TodayOct 20 Sunny Sunny46°69°
  2. WedOct 21 Patchy Fog then Sunny Patchy Fog then Sunny49°71°
  3. ThuOct 22 Patchy Fog then Mostly Sunny Patchy Fog then Mostly Sunny51°73°
  4. FriOct 23 Mostly Sunny Mostly Sunny55°70°
  5. SatOct 24 Partly Sunny Partly Sunny11%54°69°
  6. SunOct 25 Partly Sunny Partly Sunny16%47°66°
  7. MonOct 26 Slight Chance Rain Showers Slight Chance Rain Showers16%42°59°
  8. TueOct 27 Cloudy Cloudy35°49°
  9. WedOct 28 Sunny Sunny38°56°
  10. ThuOct 29 Mostly sunny Mostly sunny37°49°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
Open the National Weather Service radar (the map here needs JavaScript).

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Air quality

26
Good
Fine particles (PM2.5)

Air quality is satisfactory, and air pollution poses little or no risk.

Forecast

  • TueGood
  • WedGood
  • ThuGood

Driftless Area North, WI reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:26 AM
Sunset 6:15 PM
Daylight 10 h 48 min (−2 min 52 s tomorrow)
Waxing Gibbous · 71% lit
Moonrise 3:41 PM Moonset 1:12 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low60° / 40°
Record high84° (1872)
Record low19° (1952)
Wettest1.10 in (1979)
Yesterday68° / 43°
Month to date0.92 in (normal 1.66 in)

La Crosse Area, records since 1872. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in ARX, issued 9 hrs ago

Key Messages

- Unseasonably warm into the weekend.

- Dry through Thursday night and then maybe some small rain chances from Friday into the weekend.

- Much uncertainty on temperatures and rain chances early next week.

Discussion

Issued at 1146 PM CDT Mon Oct 19 2026

Today through Thursday night

An anomalous 500 mb ridge will remain in control of the area's weather through Thursday night. This high will provide dry weather and unseasonably warm temperatures. High temperatures will warm from the mid- and upper 60s today and be in the lower and mid-70s on Thursday. Low temperatures will be in the 30s and 40s tonight and Wednesday night and in the 40s and 50s on Thursday night.

Friday and Friday night

A negatively tilted trough will move through Minnesota and western and northern Wisconsin. There is still plenty of uncertainty on whether there will be enough low-level moisture for any rain to move into our area.

With some more cover, high temperatures will be a bit cooler (mainly in the 60s). Low temperatures will be a bit warmer (upper 40s to mid-50s).

Aviation

Issued at 600 AM CDT Tue Oct 20 2026

Valley fog has developed overnight and is currently impacting ONA/PDC/OVS with issues seen on all side of LSE but seemingly not within 5 nautical miles. In any case, still prudent to carry a TEMPO at LSE given how close the issues are to impacting the terminal. Once the fog dissipates around 14-15z, VFR conditions will return. Fog may develop once again Wednesday morning primarily impacting the Wisconsin River valley and OVS while low level winds may be too strong for this to impact LSE once again so have kept it out of the TAF near the end of the period.

Arx Watches

WI...None. MN...None. IA...None.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.