Delmar, IA Weather & Growing Conditions
This Afternoon
77°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Partly sunny. High near 77, with temperatures falling to around 74 in the afternoon. South wind around 5 mph. Chance of precipitation is 70%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Showers And Thunderstorms Likely | 5 mph S | 68% |
| Tonight | 63°F | Showers And Thunderstorms | 0 to 5 mph NE | 90% |
| Sunday | 66°F | Patchy Fog | 10 mph NE | 62% |
| Sunday Night | 56°F | Chance Rain Showers | 10 mph NE | 37% |
| Monday | 63°F | Rain Showers Likely | 10 mph NE | 65% |
| Monday Night | 51°F | Rain Showers Likely | 5 to 10 mph NE | 65% |
| Tuesday | 62°F | Rain Showers Likely | 10 mph NE | 57% |
| Tuesday Night | 49°F | Mostly Cloudy | 5 mph NE | 10% |
| Wednesday | 64°F | Partly Sunny | 5 mph NE | 4% |
| Wednesday Night | 51°F | Partly Cloudy | 0 to 5 mph NE | 2% |
| Thursday | 66°F | Partly Sunny | 0 to 5 mph NE | 10% |
| Thursday Night | 55°F | Slight Chance Rain Showers | 0 mph | 16% |
| Friday | 69°F | Partly Sunny | 0 to 5 mph NE | 11% |
| Friday Night | 54°F | Partly Cloudy | 0 mph | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Delmar, IA
Last spring frost
Apr 25
First fall frost
Oct 14
Growing season
171 days
Hardiness zone
5a
Explore more for Delmar, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Maquoketa, Ia (7.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.