Denmark, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Denmark, a community in Lee County, Iowa.
Today
53°F
Slight Chance Rain Showers then Cloudy
A slight chance of rain showers between 8am and 9am. Cloudy, with a high near 53. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
7-day forecast for Denmark
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 53°F | Slight Chance Rain Showers then Cloudy | 10 to 15 mph W | 18% |
| Tonight | 45°F | Mostly Cloudy | 10 mph SW | 4% |
| Thursday | 55°F | Mostly Cloudy then Chance Rain Showers | 5 to 10 mph W | 44% |
| Thursday Night | 43°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NW | 21% |
| Friday | 50°F | Partly Sunny | 5 to 10 mph N | 6% |
| Friday Night | 32°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 52°F | Mostly Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 34°F | Mostly Clear | 0 to 5 mph W | 1% |
| Sunday | 58°F | Sunny | 5 mph W | 1% |
| Sunday Night | 36°F | Clear | 0 mph | 0% |
| Monday | 64°F | Sunny | 0 to 5 mph SW | 0% |
| Monday Night | 41°F | Clear | 5 mph W | 0% |
| Tuesday | 64°F | Sunny | 0 to 5 mph NW | 0% |
| Tuesday Night | 42°F | Partly Cloudy | 0 mph | 0% |
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
Nearby towns & communities
Argyle
Donnellson
Farmington
Fort Madison
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Keokuk
Montrose
Mooar
Oak Hills
Sandusky
St. Paul
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 Nov 4, 2026.