Northwood, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Northwood, a city in Worth County, Iowa.
Tonight
56°F
Slight Chance Rain Showers then Cloudy
A slight chance of rain showers before 7pm. Cloudy. Low around 56, with temperatures rising to around 58 overnight. North northeast wind 8 to 12 mph, with gusts as high as 18 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Northwood
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Slight Chance Rain Showers then Cloudy | 8 to 12 mph NNE | 17% |
| Sunday | 66°F | Mostly Cloudy | 14 mph NE | 4% |
| Sunday Night | 50°F | Cloudy then Chance Rain Showers | 12 mph ENE | 30% |
| Monday | 58°F | Rain Showers Likely | 8 to 12 mph ENE | 55% |
| Monday Night | 45°F | Rain Showers Likely then Mostly Cloudy | 5 to 8 mph NE | 55% |
| Tuesday | 60°F | Partly Sunny | 5 to 8 mph ENE | 8% |
| Tuesday Night | 43°F | Partly Cloudy | 2 to 6 mph E | 1% |
| Wednesday | 64°F | Mostly Sunny | 3 to 7 mph ESE | 0% |
| Wednesday Night | 48°F | Partly Cloudy | 5 mph SE | 11% |
| Thursday | 65°F | Slight Chance Rain Showers | 2 to 7 mph SE | 20% |
| Thursday Night | 53°F | Slight Chance Rain Showers | 1 to 5 mph SE | 16% |
| Friday | 69°F | Partly Sunny | 2 to 6 mph ESE | 13% |
| Friday Night | 54°F | Mostly Cloudy | 3 mph SE | 9% |
| Saturday | 69°F | Slight Chance Rain Showers | 3 to 10 mph SSE | 23% |
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 20, 2026.