Hazleton, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hazleton, a city in Buchanan County, Iowa.
Tonight
43°F
Areas Of Drizzle
Areas of drizzle. Cloudy. Low around 43, with temperatures rising to around 46 overnight. West wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
7-day forecast for Hazleton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 43°F | Areas Of Drizzle | 15 mph W | 40% |
| Thursday | 49°F | Chance Rain Showers | 10 to 15 mph NW | 34% |
| Thursday Night | 35°F | Mostly Cloudy | 10 to 15 mph N | 6% |
| Friday | 46°F | Mostly Sunny | 5 to 10 mph N | 1% |
| Friday Night | 27°F | Mostly Clear | 0 to 5 mph N | 0% |
| Saturday | 50°F | Mostly Sunny | 0 to 5 mph W | 0% |
| Saturday Night | 33°F | Mostly Clear | 5 mph W | 0% |
| Sunday | 56°F | Sunny | 5 mph W | 0% |
| Sunday Night | 35°F | Clear | 5 mph SW | 0% |
| Monday | 62°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 39°F | Mostly Clear | 5 to 10 mph W | 0% |
| Tuesday | 59°F | Sunny | 5 mph NW | 1% |
| Tuesday Night | 39°F | Partly Cloudy | 5 mph N | 1% |
| Veterans Day | 59°F | Mostly Sunny | 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Hazleton (42.619, -91.906). Updated through the day.
Growing snapshot for Hazleton
Last spring frost
Apr 30
First fall frost
Oct 9
Growing season
163 days
Hardiness zone
5a
More local growing data for Hazleton: nearby ZIP 50641 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Oelwein 2 S, Ia (3.8 mi from Hazleton). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.