Peterson, IA Weather & Growing Conditions
Today
73°F
Patchy Smoke
Patchy smoke and scattered showers and thunderstorms before 11am, then patchy smoke and showers and thunderstorms between 11am and 5pm, then patchy smoke and scattered showers and thunderstorms. Mostly cloudy. High near 73, with temperatures falling to around 70 in the afternoon. North wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Patchy Smoke | 5 to 10 mph N | 82% |
| Tonight | 54°F | Patchy Smoke then Mostly Cloudy | 0 to 5 mph N | 61% |
| Wednesday | 75°F | Mostly Sunny | 0 to 5 mph ENE | 2% |
| Wednesday Night | 52°F | Mostly Clear | 0 to 5 mph SSE | 1% |
| Thursday | 82°F | Sunny | 0 to 10 mph S | 0% |
| Thursday Night | 60°F | Mostly Clear | 5 to 10 mph S | 4% |
| Friday | 86°F | Sunny | 5 to 15 mph SSW | 4% |
| Friday Night | 64°F | Slight Chance Showers And Thunderstorms | 5 to 15 mph S | 17% |
| Saturday | 90°F | Sunny | 5 to 15 mph S | 8% |
| Saturday Night | 67°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph SSE | 23% |
| Sunday | 89°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 to 15 mph SE | 23% |
| Sunday Night | 67°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 10 to 15 mph ESE | 23% |
| Monday | 87°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 to 15 mph E | 23% |
| Monday Night | 67°F | Chance Showers And Thunderstorms | 10 to 15 mph ENE | 29% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Peterson, IA
Last spring frost
May 4
First fall frost
Oct 4
Growing season
152 days
Hardiness zone
5a
Explore more for Peterson, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Cherokee, Ia (15.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.