Diamondhead Lake, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Diamondhead Lake, a community in Dallas County, Iowa.
Tonight
61°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy. Low around 61, with temperatures rising to around 63 overnight. North wind around 9 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Diamondhead Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 61°F | Chance Showers And Thunderstorms | 9 mph N | 54% |
| Sunday | 65°F | Chance Rain Showers then Chance Drizzle | 12 mph NNE | 44% |
| Sunday Night | 56°F | Rain Showers Likely | 12 mph NE | 74% |
| Monday | 59°F | Rain Showers | 10 mph NE | 84% |
| Monday Night | 52°F | Rain Showers Likely | 6 to 10 mph NNE | 72% |
| Tuesday | 61°F | Mostly Cloudy | 8 mph NE | 14% |
| Tuesday Night | 47°F | Partly Cloudy | 2 to 7 mph ENE | 1% |
| Wednesday | 64°F | Mostly Sunny | 5 mph E | 0% |
| Wednesday Night | 52°F | Partly Cloudy | 3 mph ESE | 8% |
| Thursday | 67°F | Chance Rain Showers | 5 mph SE | 32% |
| Thursday Night | 57°F | Chance Rain Showers | 5 mph SE | 27% |
| Friday | 69°F | Slight Chance Rain Showers | 2 to 6 mph ESE | 21% |
| Friday Night | 59°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph ESE | 18% |
| Saturday | 70°F | Chance Rain Showers | 5 to 8 mph SE | 31% |
Forecast source: National Weather Service (api.weather.gov) for Diamondhead Lake (41.555, -94.260). Updated through the day.
Growing snapshot for Diamondhead Lake
Last spring frost
May 2
First fall frost
Oct 3
Growing season
153 days
Hardiness zone
5a
More local growing data for Diamondhead Lake: nearby ZIP 50233 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Guthrie Ctr, Ia (15.3 mi from Diamondhead Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.