Hamburg, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hamburg, a city in Fremont County, Iowa.
Overnight
43°F
Cloudy
Cloudy. Low around 43, with temperatures rising to around 46 overnight. Northwest wind around 14 mph, with gusts as high as 23 mph.
7-day forecast for Hamburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 43°F | Cloudy | 14 mph NW | 3% |
| Wednesday | 54°F | Mostly Cloudy | 9 to 15 mph WNW | 6% |
| Wednesday Night | 41°F | Mostly Cloudy then Slight Chance Rain Showers | 9 mph WNW | 15% |
| Thursday | 53°F | Slight Chance Rain Showers then Mostly Cloudy | 8 to 12 mph NW | 15% |
| Thursday Night | 40°F | Mostly Cloudy | 7 mph NNW | 2% |
| Friday | 53°F | Partly Sunny | 1 to 5 mph N | 0% |
| Friday Night | 34°F | Mostly Cloudy | 0 mph | 0% |
| Saturday | 57°F | Mostly Sunny | 0 to 3 mph SSW | 1% |
| Saturday Night | 37°F | Mostly Clear | 2 mph WSW | 0% |
| Sunday | 63°F | Sunny | 3 mph WSW | 0% |
| Sunday Night | 40°F | Clear | 1 to 5 mph SSW | 0% |
| Monday | 68°F | Sunny | 5 to 8 mph SW | 0% |
| Monday Night | 43°F | Mostly Clear | 5 mph WNW | 0% |
| Tuesday | 67°F | Sunny | 3 mph N | 0% |
Forecast source: National Weather Service (api.weather.gov) for Hamburg (40.606, -95.655). Updated through the day.
Growing snapshot for Hamburg
Last spring frost
Apr 19
First fall frost
Oct 19
Growing season
182 days
Hardiness zone
5b
More local growing data for Hamburg: nearby ZIP 51640 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Sidney 1Sse, Ia (7.7 mi from Hamburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.