Northwood, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Northwood, a city in Worth County, Iowa.
Overnight
45°F
Rain Showers Likely
Rain showers likely. Cloudy. Low around 45, with temperatures rising to around 48 overnight. West northwest wind around 13 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Northwood
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 45°F | Rain Showers Likely | 13 mph WNW | 65% |
| Wednesday | 49°F | Rain Showers Likely | 15 mph W | 60% |
| Wednesday Night | 43°F | Rain Showers Likely | 10 to 14 mph WNW | 67% |
| Thursday | 48°F | Chance Rain Showers then Cloudy | 12 to 15 mph NNW | 41% |
| Thursday Night | 33°F | Mostly Cloudy | 5 to 10 mph N | 4% |
| Friday | 45°F | Mostly Sunny | 6 mph NNE | 1% |
| Friday Night | 26°F | Partly Cloudy | 2 mph N | 0% |
| Saturday | 48°F | Mostly Sunny | 1 to 7 mph SW | 1% |
| Saturday Night | 33°F | Mostly Clear | 5 mph W | 2% |
| Sunday | 54°F | Sunny | 7 mph W | 3% |
| Sunday Night | 34°F | Mostly Clear | 6 mph SW | 0% |
| Monday | 59°F | Mostly Sunny | 6 to 10 mph WSW | 0% |
| Monday Night | 37°F | Mostly Clear | 6 mph WNW | 0% |
| Tuesday | 57°F | Mostly Sunny | 5 mph NW | 0% |
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 Nov 4, 2026.