North Washington, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for North Washington, a city in Chickasaw County, Iowa.
Today
74°F
Showers And Thunderstorms
A chance of rain showers before 7am, then showers and thunderstorms. Mostly cloudy. High near 74, with temperatures falling to around 70 in the afternoon. West wind around 9 mph. Chance of precipitation is 90%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for North Washington
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Showers And Thunderstorms | 9 mph W | 89% |
| Tonight | 59°F | Showers And Thunderstorms | 3 to 8 mph NW | 84% |
| Wednesday | 73°F | Partly Sunny | 6 mph N | 9% |
| Wednesday Night | 54°F | Mostly Clear | 1 to 5 mph NW | 1% |
| Thursday | 77°F | Sunny | 1 to 5 mph SE | 0% |
| Thursday Night | 59°F | Mostly Clear | 5 mph S | 1% |
| Friday | 80°F | Sunny | 3 to 12 mph S | 8% |
| Friday Night | 64°F | Mostly Clear | 9 mph S | 11% |
| Saturday | 82°F | Sunny | 6 to 10 mph S | 9% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 12 mph S | 33% |
| Sunday | 83°F | Chance Showers And Thunderstorms | 12 mph S | 33% |
| Sunday Night | 66°F | Slight Chance Showers And Thunderstorms | 9 mph S | 34% |
| Monday | 82°F | Chance Showers And Thunderstorms | 12 mph SE | 34% |
| Monday Night | 66°F | Chance Showers And Thunderstorms | 10 mph NE | 38% |
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 Aug 4, 2026.