New Hampton, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for New Hampton, a city in Chickasaw County, Iowa.
Today
50°F
Chance Rain Showers
A chance of rain showers. Cloudy. High near 50, with temperatures falling to around 47 in the afternoon. West wind around 16 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for New Hampton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 50°F | Chance Rain Showers | 16 mph W | 35% |
| Tonight | 43°F | Rain Showers | 15 mph W | 80% |
| Thursday | 49°F | Chance Rain Showers | 14 to 17 mph NW | 37% |
| Thursday Night | 36°F | Mostly Cloudy | 9 to 15 mph N | 8% |
| Friday | 46°F | Mostly Sunny | 8 to 13 mph N | 0% |
| Friday Night | 28°F | Mostly Clear | 7 mph N | 0% |
| Saturday | 49°F | Mostly Sunny | 6 to 10 mph W | 0% |
| Saturday Night | 34°F | Mostly Clear | 6 mph W | 0% |
| Sunday | 55°F | Sunny | 6 mph W | 1% |
| Sunday Night | 36°F | Mostly Clear | 6 mph SW | 0% |
| Monday | 59°F | Sunny | 6 to 12 mph SW | 0% |
| Monday Night | 40°F | Mostly Clear | 3 to 7 mph W | 0% |
| Tuesday | 58°F | Sunny | 5 mph NW | 1% |
| Tuesday Night | 40°F | Partly Cloudy | 3 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov) for New Hampton (43.056, -92.315). Updated through the day.
Growing snapshot for New Hampton
Last spring frost
May 2
First fall frost
Oct 5
Growing season
155 days
Hardiness zone
5a
More local growing data for New Hampton: nearby ZIP 50659 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, New Hampton, Ia (3.6 mi from New Hampton). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.