Dumont, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dumont, a city in Butler County, Iowa.
This Afternoon
65°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy. High near 65, with temperatures falling to around 61 in the afternoon. Northwest wind around 9 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Dumont
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 65°F | Showers And Thunderstorms Likely | 9 mph NW | 68% |
| Tonight | 46°F | Showers And Thunderstorms Likely | 5 to 8 mph NW | 67% |
| Wednesday | 51°F | Chance Rain Showers | 9 to 16 mph W | 54% |
| Wednesday Night | 41°F | Rain Showers Likely | 8 to 12 mph W | 60% |
| Thursday | 51°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 | 30°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 | 61°F | Mostly Sunny | 5 to 9 mph SW | 0% |
| Monday Night | 39°F | Mostly Clear | 5 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Dumont (42.752, -92.974). Updated through the day.
Growing snapshot for Dumont
Last spring frost
Apr 27
First fall frost
Oct 8
Growing season
165 days
Hardiness zone
5a
More local growing data for Dumont: nearby ZIP 50625 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Allison, Ia (9.5 mi from Dumont). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.