Nashua, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Nashua, a city in Chickasaw County, Iowa.
This Afternoon
67°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy. High near 67, with temperatures falling to around 62 in the afternoon. Southwest wind 8 to 15 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Nashua
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Showers And Thunderstorms Likely | 8 to 15 mph SW | 68% |
| Tonight | 48°F | Showers And Thunderstorms Likely | 7 to 10 mph SE | 74% |
| Wednesday | 52°F | Rain Showers Likely | 12 to 17 mph SW | 66% |
| Wednesday Night | 43°F | Rain Showers | 15 mph W | 76% |
| Thursday | 51°F | Rain Showers Likely | 14 mph NW | 71% |
| Thursday Night | 37°F | Mostly Cloudy | 9 to 13 mph N | 11% |
| Friday | 48°F | Partly Sunny | 5 to 10 mph N | 1% |
| Friday Night | 31°F | Partly Cloudy | 0 to 3 mph N | 0% |
| Saturday | 52°F | Mostly Sunny | 0 to 6 mph SW | 2% |
| Saturday Night | 35°F | Mostly Clear | 5 mph W | 5% |
| Sunday | 58°F | Sunny | 5 to 9 mph W | 8% |
| Sunday Night | 37°F | Mostly Clear | 6 mph SW | 2% |
| Monday | 60°F | Mostly Sunny | 6 to 13 mph SW | 0% |
| Monday Night | 39°F | Mostly Clear | 7 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Nashua (42.950, -92.543). Updated through the day.
Growing snapshot for Nashua
Last spring frost
Apr 30
First fall frost
Oct 6
Growing season
157 days
Hardiness zone
5a
More local growing data for Nashua: nearby ZIP 50658 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Charles City, Ia (10.2 mi from Nashua). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.