New Hampton, IA Weather & Growing Conditions
Tonight
56°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Cloudy. Low around 56, with temperatures rising to around 58 overnight. Northeast wind 7 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Chance Showers And Thunderstorms | 7 to 13 mph NE | 38% |
| Sunday | 66°F | Slight Chance Rain Showers then Mostly Cloudy | 16 mph NE | 16% |
| Sunday Night | 50°F | Cloudy then Chance Rain Showers | 12 to 15 mph NE | 31% |
| Monday | 58°F | Rain Showers Likely | 12 to 16 mph NE | 60% |
| Monday Night | 46°F | Rain Showers Likely | 10 mph NE | 60% |
| Tuesday | 58°F | Slight Chance Rain Showers then Partly Sunny | 8 to 12 mph NE | 23% |
| Tuesday Night | 44°F | Partly Cloudy | 6 mph NE | 2% |
| Wednesday | 62°F | Mostly Sunny | 7 mph E | 0% |
| Wednesday Night | 48°F | Partly Cloudy | 5 mph E | 4% |
| Thursday | 64°F | Partly Sunny | 5 mph SE | 14% |
| Thursday Night | 53°F | Slight Chance Rain Showers | 3 mph E | 16% |
| Friday | 68°F | Partly Sunny | 5 mph E | 11% |
| Friday Night | 54°F | Mostly Cloudy | 5 mph E | 6% |
| Saturday | 68°F | Slight Chance Rain Showers | 5 to 8 mph SE | 19% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for New Hampton, IA
Last spring frost
May 2
First fall frost
Oct 5
Growing season
155 days
Hardiness zone
5a
Explore more for New Hampton, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, New Hampton, Ia (3.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.