Crawfordsville, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Crawfordsville, a city in Washington County, Iowa.
This Afternoon
69°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy. High near 69, with temperatures falling to around 67 in the afternoon. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
7-day forecast for Crawfordsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Showers And Thunderstorms | 15 mph S | 91% |
| Tonight | 50°F | Chance Rain Showers then Mostly Cloudy | 10 to 15 mph S | 43% |
| Wednesday | 54°F | Slight Chance Rain Showers | 15 mph SW | 22% |
| Wednesday Night | 44°F | Mostly Cloudy | 10 to 15 mph SW | 10% |
| Thursday | 54°F | Chance Rain Showers | 10 to 15 mph W | 31% |
| Thursday Night | 42°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NW | 35% |
| Friday | 52°F | Partly Sunny | 5 to 10 mph N | 12% |
| Friday Night | 34°F | Partly Cloudy | 0 to 5 mph NW | 0% |
| Saturday | 53°F | Mostly Sunny | 0 to 5 mph W | 2% |
| Saturday Night | 36°F | Mostly Clear | 0 to 5 mph W | 3% |
| Sunday | 59°F | Sunny | 5 to 10 mph W | 8% |
| Sunday Night | 37°F | Mostly Clear | 5 mph W | 3% |
| Monday | 64°F | Sunny | 5 to 10 mph SW | 1% |
| Monday Night | 41°F | Mostly Clear | 5 mph W | 0% |
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 Nov 3, 2026.