Altoona, IA Weather & Growing Conditions
Today
52°F
Cloudy
Cloudy. High near 52, with temperatures falling to around 50 in the afternoon. West wind around 16 mph, with gusts as high as 24 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 52°F | Cloudy | 16 mph W | 11% |
| Tonight | 45°F | Cloudy then Slight Chance Rain Showers | 13 mph W | 21% |
| Thursday | 54°F | Chance Rain Showers then Cloudy | 13 mph NW | 38% |
| Thursday Night | 41°F | Mostly Cloudy | 7 to 10 mph N | 10% |
| Friday | 50°F | Mostly Sunny | 5 to 8 mph N | 5% |
| Friday Night | 31°F | Partly Cloudy | 0 to 3 mph ENE | 3% |
| Saturday | 53°F | Mostly Sunny | 3 mph SW | 0% |
| Saturday Night | 36°F | Mostly Clear | 3 mph WSW | 1% |
| Sunday | 59°F | Sunny | 6 mph W | 1% |
| Sunday Night | 38°F | Clear | 5 mph SW | 0% |
| Monday | 65°F | Sunny | 3 to 9 mph SW | 0% |
| Monday Night | 42°F | Clear | 6 mph W | 0% |
| Tuesday | 64°F | Sunny | 3 mph NNW | 0% |
| Tuesday Night | 43°F | Partly Cloudy | 3 mph E | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Altoona, IA
Last spring frost
Apr 21
First fall frost
Oct 15
Growing season
174 days
Hardiness zone
5b
Explore more for Altoona, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Des Moines 17 E, Ia (10.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.