Underwood, IA Weather & Growing Conditions
This Afternoon
57°F
Rain Showers Likely
Rain showers likely. Cloudy. High near 57, with temperatures falling to around 52 in the afternoon. North northwest wind around 21 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 57°F | Rain Showers Likely | 21 mph NNW | 72% |
| Tonight | 42°F | Rain Showers Likely then Cloudy | 14 to 21 mph NW | 72% |
| Wednesday | 51°F | Slight Chance Rain Showers | 13 to 17 mph WNW | 24% |
| Wednesday Night | 41°F | Mostly Cloudy then Chance Rain Showers | 9 to 13 mph WNW | 29% |
| Thursday | 51°F | Chance Rain Showers | 13 mph NW | 36% |
| Thursday Night | 37°F | Mostly Cloudy | 6 to 9 mph NNW | 4% |
| Friday | 52°F | Partly Sunny | 2 to 6 mph N | 2% |
| Friday Night | 35°F | Mostly Cloudy | 2 mph SE | 0% |
| Saturday | 58°F | Mostly Sunny | 2 to 6 mph SW | 3% |
| Saturday Night | 38°F | Mostly Clear | 3 mph W | 5% |
| Sunday | 62°F | Sunny | 6 mph WSW | 3% |
| Sunday Night | 41°F | Mostly Clear | 7 mph SSW | 0% |
| Monday | 65°F | Sunny | 7 to 10 mph SW | 0% |
| Monday Night | 42°F | Mostly Clear | 7 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Underwood, IA
Last spring frost
Apr 18
First fall frost
Oct 21
Growing season
185 days
Hardiness zone
5b
Explore more for Underwood, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Omaha Eppley Airfield, Ne (10.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.