Dumont, IA Weather & Growing Conditions
Tonight
45°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy. Low around 45, with temperatures rising to around 50 overnight. Northwest wind 5 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 45°F | Showers And Thunderstorms | 5 to 8 mph NW | 75% |
| Wednesday | 51°F | Chance Rain Showers | 9 to 16 mph W | 54% |
| Wednesday Night | 41°F | Rain Showers Likely | 8 to 13 mph W | 60% |
| Thursday | 50°F | Rain Showers Likely | 12 mph NW | 66% |
| Thursday Night | 36°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 9 mph N | 17% |
| Friday | 48°F | Partly Sunny | 2 to 7 mph N | 2% |
| Friday Night | 29°F | Partly Cloudy | 1 mph N | 1% |
| Saturday | 53°F | Mostly Sunny | 0 to 3 mph W | 2% |
| Saturday Night | 34°F | Mostly Clear | 3 mph W | 4% |
| Sunday | 58°F | Sunny | 2 to 6 mph WNW | 6% |
| Sunday Night | 36°F | Mostly Clear | 5 mph SW | 2% |
| Monday | 62°F | Mostly Sunny | 5 to 9 mph SW | 0% |
| Monday Night | 38°F | Mostly Clear | 5 mph WNW | 1% |
| Tuesday | 59°F | Mostly Sunny | 2 to 6 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Dumont, IA
Last spring frost
Apr 27
First fall frost
Oct 8
Growing season
165 days
Hardiness zone
5a
Explore more for Dumont, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Allison, Ia (9.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.