Sully, IA Weather & Growing Conditions
Today
85°F
Partly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1pm. Partly sunny. High near 85, with temperatures falling to around 83 in the afternoon. West southwest wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Partly Sunny then Chance Showers And Thunderstorms | 7 mph WSW | 26% |
| Tonight | 63°F | Showers And Thunderstorms | 7 to 10 mph NNE | 89% |
| Wednesday | 74°F | Showers And Thunderstorms | 7 mph NNE | 88% |
| Wednesday Night | 57°F | Chance Showers And Thunderstorms | 5 mph NNE | 48% |
| Thursday | 81°F | Sunny | 3 mph ENE | 5% |
| Thursday Night | 61°F | Mostly Clear | 2 mph SE | 2% |
| Friday | 85°F | Sunny | 2 to 6 mph SSE | 6% |
| Friday Night | 66°F | Slight Chance Showers And Thunderstorms | 5 mph SSE | 15% |
| Saturday | 89°F | Sunny then Slight Chance Rain Showers | 3 to 8 mph S | 15% |
| Saturday Night | 71°F | Slight Chance Rain Showers then Mostly Clear | 9 mph S | 15% |
| Sunday | 90°F | Mostly Sunny | 10 mph S | 14% |
| Sunday Night | 71°F | Slight Chance Showers And Thunderstorms | 9 mph S | 32% |
| Monday | 90°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 7 to 12 mph S | 32% |
| Monday Night | 71°F | Chance Showers And Thunderstorms | 12 mph ESE | 28% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sully, IA
Last spring frost
Apr 22
First fall frost
Oct 17
Growing season
174 days
Hardiness zone
5b
Explore more for Sully, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Newton, Ia (9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.