Humboldt, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Humboldt, a city in Humboldt County, Iowa.
This Afternoon
59°F
Chance Rain Showers
A chance of rain showers. Cloudy. High near 59, with temperatures falling to around 55 in the afternoon. North northwest wind around 13 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Humboldt
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 59°F | Chance Rain Showers | 13 mph NNW | 30% |
| Tonight | 43°F | Showers And Thunderstorms | 13 mph NW | 92% |
| Wednesday | 49°F | Rain Showers Likely | 14 to 17 mph WNW | 64% |
| Wednesday Night | 41°F | Rain Showers Likely | 13 mph WNW | 74% |
| Thursday | 50°F | Rain Showers Likely | 10 to 14 mph NNW | 60% |
| Thursday Night | 36°F | Mostly Cloudy | 5 to 9 mph N | 14% |
| Friday | 49°F | Mostly Sunny | 1 to 5 mph N | 1% |
| Friday Night | 31°F | Partly Cloudy | 1 mph SE | 1% |
| Saturday | 55°F | Mostly Sunny | 1 to 5 mph SW | 3% |
| Saturday Night | 36°F | Partly Cloudy | 5 mph W | 4% |
| Sunday | 60°F | Sunny | 6 mph W | 5% |
| Sunday Night | 38°F | Mostly Clear | 6 mph SW | 2% |
| Monday | 63°F | Sunny | 6 to 10 mph WSW | 0% |
| Monday Night | 39°F | Mostly Clear | 6 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Humboldt (42.723, -94.225). Updated through the day.
Growing snapshot for Humboldt
Last spring frost
Apr 27
First fall frost
Oct 9
Growing season
166 days
Hardiness zone
5a
More local growing data for Humboldt: nearby ZIP 50548 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Humboldt Wtp, Ia (0.4 mi from Humboldt). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.