Dexter, IA Weather & Growing Conditions
Today
82°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Partly sunny. High near 82, with temperatures falling to around 79 in the afternoon. West northwest wind 6 to 10 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Showers And Thunderstorms Likely | 6 to 10 mph WNW | 67% |
| Tonight | 62°F | Showers And Thunderstorms | 7 to 12 mph NNE | 90% |
| Wednesday | 72°F | Showers And Thunderstorms Likely | 8 mph NE | 57% |
| Wednesday Night | 57°F | Chance Rain Showers | 2 to 7 mph NE | 25% |
| Thursday | 80°F | Mostly Sunny | 3 mph ENE | 5% |
| Thursday Night | 61°F | Mostly Clear | 5 mph SE | 4% |
| Friday | 85°F | Mostly Sunny | 5 to 8 mph S | 4% |
| Friday Night | 67°F | Mostly Clear | 7 mph S | 9% |
| Saturday | 89°F | Sunny | 6 to 12 mph SSW | 6% |
| Saturday Night | 73°F | Mostly Clear | 12 to 16 mph SSW | 10% |
| Sunday | 90°F | Mostly Sunny | 14 mph S | 10% |
| Sunday Night | 72°F | Slight Chance Showers And Thunderstorms | 14 mph SSE | 27% |
| Monday | 90°F | Chance Showers And Thunderstorms then Mostly Sunny | 16 mph SSW | 27% |
| Monday Night | 72°F | Chance Showers And Thunderstorms | 16 mph SSE | 26% |
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 Aug 4, 2026.