What is today's weather forecast for Onalaska, WA?

Today's forecast for Onalaska shows a low of 48 degrees Fahrenheit. A 20 percent chance of rain.

What is the 7-day weather forecast for Onalaska, WA?

The 7-day forecast for Onalaska shows highs from 44 to 56 degrees and lows from 37 to 48 degrees Fahrenheit. Expect precipitation on 7 days with chances of 20% or higher.

Will it rain in Onalaska, WA this week?

Yes, rain is possible in Onalaska this week. Precipitation chances: Thursday (20% chance), Saturday (80% chance), Sunday (90% chance), Monday (50% chance), Tuesday (50% chance), Wednesday (50% chance), Thursday (50% chance).

How accurate is the Onalaska weather forecast?

WeatherForYou provides highly accurate Onalaska forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Onalaska, WA Weather Forecast and Current Conditions

WEATHER ALERTS - Special Weather Statement - Flood Watch

Current Conditions From Nearby Station

Switch to Metric Units

48°F
Feels Like 48°F

Humidity 100% Dew Point 48°F Wind Calm Barometer 30.2 in.

Report from a MADIS/MESONET weather station 7.6 mi. NW of central Onalaska
at 5:15 AM Fri, Dec 12, 2025

Point Forecast at a Glance

ThuDec 11

20%

FriDec 12

SatDec 13

SunDec 14

90%

MonDec 15

50%

TueDec 16

50%

WedDec 17

50%

Jump to detailed forecast ↓

7-Day Temperature Trend

Week Ahead Summary

Cooling trend continues with high temperatures dropping from 55°F to 44°F. Unsettled weather expected with rain likely on at least 6 days.

Climate Context

This week's forecast shows temperatures running 6°F above the historical average for December. Normal highs for this period are around 45°F with lows around 34°F.

This Date in Weather History

1967 - From December 12th through the 20th a series of snowstorms buries Flagstaff, AZ with nearly 85 inches of snow.

Onalaska, WA 7 Day Weather Forecast Details

Thursday Dec 11

Night: A 20 percent chance of rain. Cloudy, with a low around 48. Calm wind.

Friday Dec 12

Day: Patchy fog after 4pm. Otherwise, mostly cloudy, with a high near 55. Calm wind.

Night: Patchy dense fog before 1am. Otherwise, mostly cloudy, with a low around 42. Calm wind.

Saturday Dec 13

Day: Mostly sunny, with a high near 56. Calm wind.

Night: Rain, mainly after 4am. Low around 44. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Sunday Dec 14

Day: Rain, mainly before 4pm. High near 52. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

Night: Rain, mainly after 10pm. Low around 48. Chance of precipitation is 80%.

Monday Dec 15

Day: Rain. Cloudy, with a high near 56.

Night: Rain. Cloudy, with a low around 44.

Tuesday Dec 16

Day: Rain. Cloudy, with a high near 51.

Night: Rain. Cloudy, with a low around 37.

Wednesday Dec 17

Day: Rain. Cloudy, with a high near 44.

Night: Rain. Cloudy, with a low around 37.

Thursday Dec 18

Day: Rain. Cloudy, with a high near 46.

About Onalaska, WA

Onalaska is an unincorporated community and census-designated place (CDP) in Lewis County, Washington, United States. As of the 2020 census it had a population of 657. Onalaska is located along Washington State Route 508.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

Your favorites: