Peterson, IA Weather & Growing Conditions
Tonight
63°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1am, then patchy fog and a chance of showers and thunderstorms. Cloudy, with a low around 63. Northeast wind 0 to 10 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 63°F | Chance Showers And Thunderstorms | 0 to 10 mph NE | 40% |
| Saturday | 71°F | Patchy Fog then Cloudy | 5 to 10 mph N | 33% |
| Saturday Night | 55°F | Slight Chance Rain Showers then Cloudy | 10 mph NNE | 20% |
| Sunday | 65°F | Slight Chance Rain Showers | 15 mph NE | 21% |
| Sunday Night | 51°F | Chance Rain Showers | 10 to 15 mph ENE | 54% |
| Monday | 59°F | Rain Showers Likely | 10 mph ENE | 58% |
| Monday Night | 47°F | Chance Rain Showers | 5 to 10 mph ENE | 42% |
| Tuesday | 61°F | Partly Sunny | 5 to 10 mph E | 12% |
| Tuesday Night | 45°F | Partly Cloudy | 0 to 5 mph ESE | 0% |
| Wednesday | 65°F | Mostly Sunny | 0 to 5 mph SE | 4% |
| Wednesday Night | 49°F | Mostly Cloudy then Slight Chance Rain Showers | 0 to 5 mph SE | 22% |
| Thursday | 67°F | Slight Chance Rain Showers | 0 to 5 mph SSE | 24% |
| Thursday Night | 51°F | Mostly Cloudy then Slight Chance Rain Showers | 0 to 5 mph SSE | 15% |
| Friday | 68°F | Slight Chance Rain Showers then Partly Sunny | 0 to 10 mph SE | 15% |
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 Sep 19, 2026.