Patterson, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Patterson, a city in Madison County, Iowa.
Tonight
46°F
Chance Rain Showers
A chance of rain showers before 3am. Cloudy. Low around 46, with temperatures rising to around 48 overnight. Northwest wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Patterson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Chance Rain Showers | 14 mph NW | 44% |
| Wednesday | 53°F | Mostly Cloudy | 16 mph W | 14% |
| Wednesday Night | 43°F | Mostly Cloudy | 12 mph W | 13% |
| Thursday | 53°F | Chance Rain Showers | 12 mph NW | 50% |
| Thursday Night | 41°F | Mostly Cloudy | 9 mph NNW | 11% |
| Friday | 53°F | Partly Sunny | 5 to 8 mph N | 5% |
| Friday Night | 35°F | Mostly Cloudy | 3 mph NNW | 0% |
| Saturday | 57°F | Mostly Sunny | 1 to 5 mph WSW | 1% |
| Saturday Night | 38°F | Mostly Clear | 6 mph W | 3% |
| Sunday | 63°F | Sunny | 6 mph W | 6% |
| Sunday Night | 40°F | Mostly Clear | 7 mph SW | 1% |
| Monday | 66°F | Sunny | 7 to 12 mph SW | 0% |
| Monday Night | 43°F | Mostly Clear | 7 mph W | 0% |
| Tuesday | 65°F | Sunny | 6 mph NNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Patterson (41.348, -93.878). Updated through the day.
Growing snapshot for Patterson
Last spring frost
Apr 30
First fall frost
Oct 3
Growing season
157 days
Hardiness zone
5b
More local growing data for Patterson: nearby ZIP 50218 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Winterset 1S, Ia (7.7 mi from Patterson). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.