Dexter, IA Weather & Growing Conditions
This Afternoon
64°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy. High near 64, with temperatures falling to around 58 in the afternoon. North northwest wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 64°F | Showers And Thunderstorms | 14 mph NNW | 86% |
| Tonight | 44°F | Rain Showers | 15 mph NW | 80% |
| Wednesday | 51°F | Mostly Cloudy then Slight Chance Rain Showers | 15 to 18 mph W | 17% |
| Wednesday Night | 41°F | Mostly Cloudy then Slight Chance Rain Showers | 14 mph W | 18% |
| Thursday | 52°F | Chance Rain Showers | 13 mph NW | 50% |
| Thursday Night | 39°F | Mostly Cloudy | 10 mph NNW | 12% |
| Friday | 52°F | Partly Sunny | 3 to 8 mph N | 4% |
| Friday Night | 34°F | Mostly Cloudy | 3 mph NW | 0% |
| Saturday | 57°F | Mostly Sunny | 2 to 6 mph WSW | 1% |
| Saturday Night | 37°F | Mostly Clear | 7 mph W | 4% |
| Sunday | 62°F | Sunny | 6 mph W | 5% |
| Sunday Night | 40°F | Mostly Clear | 6 to 9 mph SW | 1% |
| Monday | 66°F | Sunny | 9 to 13 mph WSW | 0% |
| Monday Night | 42°F | Mostly Clear | 5 to 8 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Dexter, IA
Last spring frost
Apr 30
First fall frost
Oct 3
Growing season
157 days
Hardiness zone
5b
Explore more for Dexter, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Winterset 1S, Ia (14.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.