Onalaska weather
At 5:45 PM local time it was cloudy and 15°C (59°F). Little to no rain in the next 24 hours. Best months for weather: May–Sep. Onalaska sits 217 m (712 ft) above sea level, which keeps it cooler than the coast. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Onalaska, Wisconsin, United States.
Current conditions
- Clouds
- 100%
- Chance of rain
- 6%
- Rain
- 0.0 mm/h
Hourly Forecast
Little to no rain in the next 24 hours
Daily Forecast
Best Time to Visit
Peak season May–SepOff season Nov–Mar
About Onalaska weather
Is it raining in Onalaska right now?
No. It’s cloudy and 15° right now. Little to no rain in the next 24 hours.
What’s the weather like in Onalaska this week?
Over the next 7 days, expect highs of 13–19° and lows of 7–13°. Rain is likely on 2 of 7 days (Monday, Tuesday). The driest day looks like Sunday.
Has it been raining in Onalaska lately?
In the past 7 days, Onalaska had 2 rainy days and 4.5 mm of rain in total.
What should I pack for Onalaska?
For the coming week, bring an umbrella or rain jacket and a warm layer for the evenings.
Onalaska weather by month
When is the best time to visit Onalaska?
Based on weather alone, the best time to visit Onalaska is May–Sep, according to NASA's 2001–2025 climate averages. Nov–Mar tends to be the least pleasant. Average highs run from -5°C (23°F) in January to 28°C (83°F) in July.
What is the rainiest month in Onalaska?
June is the wettest month, with about 140 mm (5.5 in) of rain on average. January is the driest, with about 26 mm (1.0 in).
What is the hottest month in Onalaska?
July is the warmest, with average highs of 28°C (83°F) and lows of 17°C (63°F). January is the coolest, with highs of -5°C (23°F) and lows of -14°C (6°F).
Does Onalaska have a rainy season?
Not a strong one. No month averages more than 150 mm of rain; the wettest is June at about 140 mm (5.5 in).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), forecast and current conditions from Open-Meteo. Page updated . How we rate months