Denmark, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Denmark, a community in Lee County, Iowa.
This Afternoon
86°F
Slight Chance Showers And Thunderstorms
A slight chance of rain showers between 2pm and 4pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a high near 86. South wind around 10 mph. Chance of precipitation is 20%.
7-day forecast for Denmark
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 86°F | Slight Chance Showers And Thunderstorms | 10 mph S | 16% |
| Tonight | 66°F | Chance Showers And Thunderstorms | 5 mph W | 75% |
| Sunday | 73°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph N | 80% |
| Sunday Night | 59°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 10 mph NE | 66% |
| Monday | 64°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 66% |
| Monday Night | 54°F | Chance Rain Showers | 10 mph NE | 42% |
| Tuesday | 62°F | Chance Rain Showers | 10 mph NE | 42% |
| Tuesday Night | 49°F | Partly Cloudy | 5 mph NE | 5% |
| Wednesday | 67°F | Mostly Sunny | 5 mph NE | 1% |
| Wednesday Night | 52°F | Partly Cloudy | 5 mph NE | 2% |
| Thursday | 70°F | Partly Sunny | 5 mph NE | 6% |
| Thursday Night | 56°F | Partly Cloudy | 0 to 5 mph NE | 5% |
| Friday | 72°F | Mostly Sunny | 5 mph NE | 5% |
| Friday Night | 56°F | Partly Cloudy | 5 mph E | 6% |
Forecast source: National Weather Service (api.weather.gov) for Denmark (40.734, -91.338). Updated through the day.
Growing snapshot for Denmark
Last spring frost
Apr 12
First fall frost
Oct 25
Growing season
194 days
Hardiness zone
6a
More local growing data for Denmark: nearby ZIP 52624 weather · frost dates · planting calendar · Iowa frost dates
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West Point
Wever
Climate data from the nearest NOAA station, Ft Madison, Ia (7.8 mi from Denmark). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.