Denver, IA Weather & Growing Conditions
This Afternoon
76°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Partly sunny. High near 76, with temperatures falling to around 74 in the afternoon. Northwest wind around 9 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 | 76°F | Showers And Thunderstorms Likely | 9 mph NW | 69% |
| Tonight | 60°F | Showers And Thunderstorms Likely | 5 to 8 mph N | 62% |
| Wednesday | 72°F | Chance Showers And Thunderstorms then Partly Sunny | 5 mph NNE | 29% |
| Wednesday Night | 54°F | Mostly Clear | 5 mph N | 14% |
| Thursday | 78°F | Sunny | 5 mph E | 2% |
| Thursday Night | 59°F | Mostly Clear | 5 mph SSE | 0% |
| Friday | 81°F | Sunny | 3 to 12 mph S | 6% |
| Friday Night | 65°F | Mostly Clear | 9 mph S | 12% |
| Saturday | 84°F | Sunny | 6 to 10 mph S | 10% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 13 mph S | 28% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 13 mph E | 28% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms | 10 mph SSE | 36% |
| Monday | 83°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 12 mph SSE | 36% |
| Monday Night | 68°F | Slight Chance Showers And Thunderstorms | 12 mph ENE | 36% |
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 Aug 4, 2026.