Altoona, WI Weather & Growing Conditions
Tonight
56°F
Rain
Rain likely before 7pm, then rain and patchy fog. Mostly cloudy, with a low around 56. Southeast wind around 5 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Rain | 5 mph SE | 100% |
| Wednesday | 60°F | Light Rain | 5 to 10 mph SSE | 87% |
| Wednesday Night | 46°F | Light Rain | 5 to 10 mph W | 84% |
| Thursday | 48°F | Light Rain Likely | 10 to 15 mph N | 56% |
| Thursday Night | 36°F | Mostly Cloudy | 5 to 15 mph NNE | 5% |
| Friday | 47°F | Partly Sunny | 0 to 10 mph NNE | 1% |
| Friday Night | 29°F | Partly Cloudy | 0 mph | 1% |
| Saturday | 51°F | Mostly Sunny | 0 to 5 mph WSW | 1% |
| Saturday Night | 34°F | Partly Cloudy | 0 to 5 mph W | 6% |
| Sunday | 55°F | Mostly Sunny | 5 to 10 mph WNW | 14% |
| Sunday Night | 35°F | Partly Cloudy | 0 to 5 mph SW | 2% |
| Monday | 57°F | Mostly Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 38°F | Partly Cloudy | 5 mph W | 1% |
| Tuesday | 54°F | Sunny | 5 to 10 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Altoona, WI
Last spring frost
Apr 24
First fall frost
Oct 14
Growing season
170 days
Hardiness zone
4b
Explore more for Altoona, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Eau Claire 3Sw, Wi (4.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.