Dawson, IA Weather & Growing Conditions
Today
80°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Partly sunny. High near 80, with temperatures falling to around 77 in the afternoon. North wind 6 to 10 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Showers And Thunderstorms Likely | 6 to 10 mph N | 62% |
| Tonight | 61°F | Showers And Thunderstorms | 5 to 10 mph NNE | 92% |
| Wednesday | 73°F | Chance Showers And Thunderstorms | 7 mph ENE | 45% |
| Wednesday Night | 55°F | Partly Cloudy | 3 mph ENE | 12% |
| Thursday | 80°F | Sunny | 3 mph E | 1% |
| Thursday Night | 60°F | Mostly Clear | 3 mph SSE | 3% |
| Friday | 85°F | Sunny | 2 to 8 mph S | 5% |
| Friday Night | 66°F | Mostly Clear | 7 mph S | 11% |
| Saturday | 89°F | Sunny | 3 to 12 mph S | 11% |
| Saturday Night | 71°F | Mostly Clear | 13 mph SSW | 14% |
| Sunday | 89°F | Mostly Sunny | 12 mph S | 14% |
| Sunday Night | 70°F | Slight Chance Showers And Thunderstorms | 12 mph SSE | 31% |
| Monday | 89°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 14 mph S | 31% |
| Monday Night | 71°F | Slight Chance Showers And Thunderstorms | 10 to 14 mph SE | 23% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Dawson, IA
Last spring frost
Apr 25
First fall frost
Oct 10
Growing season
166 days
Hardiness zone
5a
Explore more for Dawson, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Perry, Ia (6.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.