Patterson, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Patterson, a city in Madison County, Iowa.
Today
85°F
Partly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 2pm. Partly sunny. High near 85, with temperatures falling to around 83 in the afternoon. West wind 5 to 9 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Patterson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Partly Sunny then Chance Showers And Thunderstorms | 5 to 9 mph W | 41% |
| Tonight | 63°F | Showers And Thunderstorms | 6 to 10 mph NNE | 90% |
| Wednesday | 73°F | Showers And Thunderstorms Likely | 7 mph NNE | 66% |
| Wednesday Night | 58°F | Chance Showers And Thunderstorms | 2 to 6 mph NE | 38% |
| Thursday | 81°F | Mostly Sunny | 3 mph ENE | 7% |
| Thursday Night | 61°F | Mostly Clear | 3 mph SE | 5% |
| Friday | 86°F | Sunny | 2 to 7 mph S | 5% |
| Friday Night | 67°F | Mostly Clear | 6 mph S | 10% |
| Saturday | 90°F | Sunny | 5 to 10 mph SSW | 5% |
| Saturday Night | 73°F | Mostly Clear | 9 to 14 mph SSW | 10% |
| Sunday | 91°F | Mostly Sunny | 13 mph SSW | 10% |
| Sunday Night | 72°F | Slight Chance Showers And Thunderstorms | 13 mph S | 25% |
| Monday | 91°F | Chance Showers And Thunderstorms then Mostly Sunny | 10 to 14 mph SSW | 25% |
| Monday Night | 73°F | Chance Showers And Thunderstorms | 14 mph SSE | 26% |
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 Aug 4, 2026.