Crawfordsville, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Crawfordsville, a city in Washington County, Iowa.
Today
83°F
Patchy Fog
Patchy fog and showers and thunderstorms likely. Mostly cloudy, with a high near 83. South wind 5 to 10 mph. Chance of precipitation is 60%.
7-day forecast for Crawfordsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Patchy Fog | 5 to 10 mph S | 63% |
| Tonight | 65°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 to 10 mph NW | 81% |
| Sunday | 71°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 74% |
| Sunday Night | 58°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 10 to 15 mph NE | 62% |
| Monday | 64°F | Showers And Thunderstorms Likely | 15 mph NE | 62% |
| Monday Night | 52°F | Chance Rain Showers | 10 to 15 mph NE | 52% |
| Tuesday | 62°F | Chance Rain Showers | 10 to 15 mph NE | 36% |
| Tuesday Night | 48°F | Partly Cloudy | 5 to 10 mph NE | 5% |
| Wednesday | 66°F | Sunny | 5 to 10 mph NE | 0% |
| Wednesday Night | 51°F | Partly Cloudy | 0 to 5 mph NE | 2% |
| Thursday | 69°F | Partly Sunny | 5 mph NE | 6% |
| Thursday Night | 55°F | Partly Cloudy | 0 to 5 mph NE | 5% |
| Friday | 72°F | Mostly Sunny | 5 mph E | 6% |
| Friday Night | 55°F | Partly Cloudy | 5 mph E | 7% |
Forecast source: National Weather Service (api.weather.gov) for Crawfordsville (41.214, -91.537). Updated through the day.
Growing snapshot for Crawfordsville
Last spring frost
Apr 26
First fall frost
Oct 10
Growing season
167 days
Hardiness zone
5b
More local growing data for Crawfordsville: nearby ZIP 52621 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Columbus Junction, Ia (10.3 mi from Crawfordsville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.