Harcourt, IA Weather & Growing Conditions
Today
73°F
Patchy Fog
Patchy fog and a chance of showers and thunderstorms. Mostly cloudy. High near 73, with temperatures falling to around 70 in the afternoon. North northwest wind 5 to 8 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Patchy Fog | 5 to 8 mph NNW | 31% |
| Tonight | 59°F | Slight Chance Showers And Thunderstorms then Chance Drizzle | 9 mph N | 25% |
| Sunday | 65°F | Chance Drizzle | 12 mph NE | 38% |
| Sunday Night | 55°F | Chance Rain Showers | 9 mph ENE | 51% |
| Monday | 61°F | Chance Rain Showers | 9 mph ENE | 54% |
| Monday Night | 49°F | Chance Rain Showers | 5 to 8 mph ENE | 54% |
| Tuesday | 60°F | Partly Sunny | 6 mph ENE | 9% |
| Tuesday Night | 45°F | Partly Cloudy | 5 mph E | 1% |
| Wednesday | 65°F | Sunny | 3 mph E | 1% |
| Wednesday Night | 50°F | Partly Cloudy | 2 mph ESE | 7% |
| Thursday | 66°F | Slight Chance Rain Showers | 5 mph SE | 19% |
| Thursday Night | 54°F | Mostly Cloudy | 2 mph ESE | 10% |
| Friday | 69°F | Partly Sunny | 5 mph ESE | 10% |
| Friday Night | 55°F | Mostly Cloudy | 3 mph SE | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Harcourt, IA
Last spring frost
Apr 26
First fall frost
Oct 9
Growing season
164 days
Hardiness zone
5a
Explore more for Harcourt, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Jefferson, Ia (20.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.