Denver, IA Weather & Growing Conditions
Tonight
48°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Cloudy. Low around 48, with temperatures rising to around 52 overnight. South wind 8 to 12 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 48°F | Chance Showers And Thunderstorms | 8 to 12 mph S | 39% |
| Wednesday | 53°F | Rain Showers Likely | 13 to 18 mph WSW | 55% |
| Wednesday Night | 43°F | Rain Showers Likely | 14 to 17 mph WSW | 69% |
| Thursday | 51°F | Rain Showers Likely | 14 mph NW | 73% |
| Thursday Night | 38°F | Mostly Cloudy | 10 to 14 mph N | 11% |
| Friday | 48°F | Partly Sunny | 5 to 12 mph N | 1% |
| Friday Night | 32°F | Partly Cloudy | 3 mph NNW | 0% |
| Saturday | 52°F | Mostly Sunny | 1 to 7 mph WSW | 2% |
| Saturday Night | 35°F | Mostly Clear | 6 mph W | 4% |
| Sunday | 58°F | Sunny | 6 to 10 mph WNW | 8% |
| Sunday Night | 37°F | Mostly Clear | 7 mph SW | 1% |
| Monday | 60°F | Sunny | 7 to 14 mph SW | 0% |
| Monday Night | 40°F | Mostly Clear | 8 mph WNW | 0% |
| Tuesday | 59°F | Sunny | 8 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Denver, IA
Last spring frost
Apr 27
First fall frost
Oct 10
Growing season
165 days
Hardiness zone
5a
Explore more for Denver, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Waterloo Muni Ap, Ia (8.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.