Patterson, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Patterson, a city in Madison County, Iowa.
This Afternoon
86°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly sunny. High near 86, with temperatures falling to around 81 in the afternoon. Northwest wind around 8 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Patterson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 86°F | Slight Chance Showers And Thunderstorms | 8 mph NW | 19% |
| Tonight | 62°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 6 to 9 mph NNW | 71% |
| Sunday | 66°F | Chance Rain Showers then Chance Drizzle | 8 to 12 mph NNE | 46% |
| Sunday Night | 57°F | Rain Showers Likely | 10 mph NE | 74% |
| Monday | 59°F | Rain Showers | 10 mph NE | 81% |
| Monday Night | 53°F | Rain Showers Likely | 9 mph NNE | 66% |
| Tuesday | 60°F | Mostly Cloudy | 8 mph NE | 13% |
| Tuesday Night | 48°F | Partly Cloudy | 2 to 7 mph NE | 1% |
| Wednesday | 63°F | Mostly Sunny | 5 mph ENE | 0% |
| Wednesday Night | 52°F | Partly Cloudy | 3 mph E | 7% |
| Thursday | 67°F | Slight Chance Rain Showers | 5 mph SE | 23% |
| Thursday Night | 58°F | Slight Chance Rain Showers | 3 mph ESE | 24% |
| Friday | 69°F | Slight Chance Rain Showers | 1 to 5 mph ESE | 24% |
| Friday Night | 59°F | Mostly Cloudy | 5 mph E | 12% |
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 Sep 20, 2026.