Northwood, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Northwood, a city in Worth County, Iowa.
Today
69°F
Patchy Fog
Patchy fog and a chance of showers and thunderstorms. Mostly cloudy, with a high near 69. North northeast wind around 9 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Northwood
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 69°F | Patchy Fog | 9 mph NNE | 52% |
| Tonight | 55°F | Slight Chance Rain Showers | 12 mph NNE | 23% |
| Sunday | 66°F | Partly Sunny | 14 mph NE | 9% |
| Sunday Night | 50°F | Mostly Cloudy then Slight Chance Rain Showers | 12 mph ENE | 21% |
| Monday | 61°F | Slight Chance Rain Showers | 10 mph ENE | 24% |
| Monday Night | 45°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 8 mph ENE | 15% |
| Tuesday | 61°F | Mostly Sunny | 5 to 8 mph ENE | 8% |
| Tuesday Night | 42°F | Mostly Clear | 2 to 6 mph E | 1% |
| Wednesday | 64°F | Sunny | 2 to 6 mph ESE | 1% |
| Wednesday Night | 47°F | Mostly Clear | 1 to 5 mph SE | 6% |
| Thursday | 66°F | Mostly Sunny | 1 to 6 mph SE | 10% |
| Thursday Night | 50°F | Partly Cloudy | 3 mph SE | 4% |
| Friday | 68°F | Mostly Sunny | 2 to 6 mph SE | 4% |
| Friday Night | 51°F | Partly Cloudy | 5 mph SE | 10% |
Forecast source: National Weather Service (api.weather.gov) for Northwood (43.444, -93.216). Updated through the day.
Growing snapshot for Northwood
Last spring frost
May 4
First fall frost
Oct 4
Growing season
152 days
Hardiness zone
5a
More local growing data for Northwood: nearby ZIP 50459 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Northwood, Ia (1.8 mi from Northwood). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.