North Washington, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for North Washington, a city in Chickasaw County, Iowa.
This Afternoon
48°F
Chance Rain Showers
A chance of rain showers. Cloudy. High near 48, with temperatures falling to around 46 in the afternoon. West wind around 12 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for North Washington
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 48°F | Chance Rain Showers | 12 mph W | 27% |
| Tonight | 43°F | Rain Showers | 15 mph W | 84% |
| Thursday | 49°F | Chance Rain Showers then Cloudy | 17 mph NW | 40% |
| Thursday Night | 34°F | Mostly Cloudy | 9 to 15 mph N | 12% |
| Friday | 45°F | Mostly Sunny | 8 to 13 mph N | 0% |
| Friday Night | 26°F | Mostly Clear | 8 mph N | 0% |
| Saturday | 50°F | Mostly Sunny | 6 to 10 mph W | 0% |
| Saturday Night | 33°F | Mostly Clear | 6 mph W | 0% |
| Sunday | 56°F | Sunny | 6 mph W | 1% |
| Sunday Night | 35°F | Mostly Clear | 6 mph SW | 0% |
| Monday | 62°F | Sunny | 6 to 12 mph SW | 0% |
| Monday Night | 39°F | Mostly Clear | 3 to 7 mph W | 0% |
| Tuesday | 58°F | Sunny | 5 mph NW | 1% |
| Tuesday Night | 38°F | Partly Cloudy | 3 mph N | 2% |
Forecast source: National Weather Service (api.weather.gov) for North Washington (43.117, -92.415). Updated through the day.
Growing snapshot for North Washington
Last spring frost
May 2
First fall frost
Oct 5
Growing season
155 days
Hardiness zone
5a
More local growing data for North Washington: nearby ZIP 50603 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, New Hampton, Ia (12.4 mi from North Washington). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.