Delmar, IA Weather & Growing Conditions
Today
84°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 3pm. Mostly sunny. High near 84, with temperatures falling to around 81 in the afternoon. Southwest wind 5 to 10 mph. Chance of precipitation is 30%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph SW | 31% |
| Tonight | 65°F | Showers And Thunderstorms Likely | 5 mph N | 88% |
| Wednesday | 76°F | Showers And Thunderstorms Likely | 0 to 5 mph N | 68% |
| Wednesday Night | 59°F | Chance Showers And Thunderstorms | 0 to 5 mph N | 53% |
| Thursday | 80°F | Chance Rain Showers then Mostly Sunny | 0 mph | 30% |
| Thursday Night | 60°F | Mostly Clear | 0 mph | 4% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph SE | 5% |
| Friday Night | 64°F | Mostly Clear | 0 to 5 mph S | 8% |
| Saturday | 85°F | Sunny | 5 mph S | 11% |
| Saturday Night | 69°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 5 mph S | 19% |
| Sunday | 86°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 5 to 10 mph S | 19% |
| Sunday Night | 69°F | Chance Showers And Thunderstorms | 5 mph S | 39% |
| Monday | 86°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 5 mph S | 38% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 5 mph E | 38% |
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 Aug 4, 2026.