New Hampton, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for New Hampton, a city in Chickasaw County, Iowa.
Overnight
62°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a low around 62. Southeast wind around 12 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for New Hampton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 62°F | Showers And Thunderstorms | 12 mph SE | 88% |
| Saturday | 72°F | Showers And Thunderstorms Likely | 7 to 12 mph SW | 59% |
| Saturday Night | 57°F | Chance Showers And Thunderstorms | 9 to 14 mph N | 33% |
| Sunday | 65°F | Slight Chance Rain Showers then Mostly Cloudy | 15 to 18 mph NE | 21% |
| Sunday Night | 50°F | Mostly Cloudy then Chance Rain Showers | 13 to 16 mph NE | 26% |
| Monday | 61°F | Chance Rain Showers | 13 to 16 mph NE | 31% |
| Monday Night | 46°F | Chance Rain Showers | 12 mph NE | 30% |
| Tuesday | 60°F | Mostly Sunny | 10 mph NE | 13% |
| Tuesday Night | 42°F | Mostly Clear | 6 mph E | 2% |
| Wednesday | 64°F | Sunny | 7 mph E | 1% |
| Wednesday Night | 48°F | Mostly Clear | 5 mph E | 4% |
| Thursday | 65°F | Slight Chance Rain Showers | 5 mph E | 15% |
| Thursday Night | 50°F | Partly Cloudy | 3 mph E | 4% |
| Friday | 68°F | Mostly Sunny | 6 mph E | 4% |
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 Sep 19, 2026.