Hamburg, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hamburg, a city in Fremont County, Iowa.
Today
86°F
Slight Chance Rain Showers then Chance Showers And Thunderstorms
A slight chance of rain showers before 4pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 86. West northwest wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Hamburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 7 mph WNW | 25% |
| Tonight | 64°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 8 mph N | 69% |
| Sunday | 68°F | Slight Chance Showers And Thunderstorms | 9 mph NNE | 40% |
| Sunday Night | 59°F | Chance Showers And Thunderstorms | 6 to 9 mph NE | 41% |
| Monday | 62°F | Chance Rain Showers | 8 mph NE | 40% |
| Monday Night | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 8 mph NE | 21% |
| Tuesday | 62°F | Mostly Cloudy | 7 mph NE | 2% |
| Tuesday Night | 49°F | Partly Cloudy | 5 mph E | 0% |
| Wednesday | 65°F | Mostly Sunny | 5 mph ESE | 3% |
| Wednesday Night | 54°F | Mostly Cloudy then Slight Chance Rain Showers | 3 mph ESE | 18% |
| Thursday | 67°F | Chance Rain Showers | 5 mph SE | 31% |
| Thursday Night | 58°F | Chance Rain Showers | 3 mph ESE | 29% |
| Friday | 68°F | Chance Rain Showers | 6 mph ESE | 29% |
| Friday Night | 59°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph SE | 17% |
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 Sep 19, 2026.