Crawfordsville, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Crawfordsville, a city in Washington County, Iowa.
Today
88°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 4pm. Mostly sunny. High near 88, with temperatures falling to around 85 in the afternoon. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.
7-day forecast for Crawfordsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 24% |
| Tonight | 67°F | Showers And Thunderstorms Likely | 5 mph NE | 64% |
| Wednesday | 78°F | Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph NE | 80% |
| Wednesday Night | 62°F | Showers And Thunderstorms Likely | 5 mph N | 68% |
| Thursday | 81°F | Chance Showers And Thunderstorms then Mostly Sunny | 5 mph NE | 47% |
| Thursday Night | 62°F | Mostly Clear | 0 to 5 mph NE | 4% |
| Friday | 83°F | Mostly Sunny | 0 to 5 mph SE | 4% |
| Friday Night | 66°F | Slight Chance Showers And Thunderstorms | 5 mph SE | 15% |
| Saturday | 87°F | Sunny | 5 mph S | 12% |
| Saturday Night | 71°F | Mostly Clear | 5 to 10 mph S | 10% |
| Sunday | 89°F | Sunny | 10 to 15 mph S | 10% |
| Sunday Night | 70°F | Slight Chance Showers And Thunderstorms | 10 mph S | 27% |
| Monday | 88°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 10 to 15 mph S | 27% |
| Monday Night | 71°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph S | 30% |
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 Aug 4, 2026.