Humboldt, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Humboldt, a city in Humboldt County, Iowa.
Today
77°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy. High near 77, with temperatures falling to around 73 in the afternoon. North northwest wind 7 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Humboldt
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Showers And Thunderstorms Likely | 7 to 10 mph NNW | 70% |
| Tonight | 57°F | Showers And Thunderstorms Likely | 3 to 7 mph N | 60% |
| Wednesday | 77°F | Partly Sunny | 3 mph NNE | 4% |
| Wednesday Night | 53°F | Mostly Clear | 2 mph SE | 2% |
| Thursday | 82°F | Sunny | 1 to 6 mph S | 1% |
| Thursday Night | 60°F | Mostly Clear | 6 mph S | 2% |
| Friday | 85°F | Sunny | 5 to 12 mph S | 8% |
| Friday Night | 65°F | Slight Chance Showers And Thunderstorms | 6 to 10 mph S | 24% |
| Saturday | 89°F | Slight Chance Showers And Thunderstorms then Sunny | 5 to 14 mph S | 15% |
| Saturday Night | 68°F | Slight Chance Showers And Thunderstorms | 9 to 14 mph SE | 23% |
| Sunday | 88°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 12 mph SE | 23% |
| Sunday Night | 69°F | Slight Chance Showers And Thunderstorms | 7 to 10 mph SE | 31% |
| Monday | 87°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 8 to 12 mph ESE | 31% |
| Monday Night | 68°F | Slight Chance Showers And Thunderstorms | 9 to 13 mph ENE | 30% |
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 Aug 4, 2026.