Sully, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sully, a city in Jasper County, Iowa.
Tonight
69°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Southeast wind 7 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Sully
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 69°F | Chance Showers And Thunderstorms | 7 to 10 mph SE | 49% |
| Saturday | 82°F | Chance Showers And Thunderstorms | 6 to 9 mph SSW | 47% |
| Saturday Night | 63°F | Chance Showers And Thunderstorms | 5 to 8 mph N | 53% |
| Sunday | 67°F | Showers And Thunderstorms Likely | 8 to 13 mph NNE | 65% |
| Sunday Night | 57°F | Showers And Thunderstorms Likely | 12 mph NE | 65% |
| Monday | 61°F | Rain Showers Likely | 13 mph ENE | 63% |
| Monday Night | 52°F | Rain Showers Likely | 10 mph NE | 63% |
| Tuesday | 60°F | Slight Chance Rain Showers then Mostly Cloudy | 9 mph NE | 21% |
| Tuesday Night | 48°F | Partly Cloudy | 6 mph NE | 4% |
| Wednesday | 64°F | Mostly Sunny | 5 mph ENE | 1% |
| Wednesday Night | 52°F | Partly Cloudy | 2 mph E | 3% |
| Thursday | 67°F | Partly Sunny | 3 mph ESE | 10% |
| Thursday Night | 55°F | Partly Cloudy | 2 mph E | 8% |
| Friday | 67°F | Slight Chance Rain Showers | 5 mph E | 15% |
Forecast source: National Weather Service (api.weather.gov) for Sully (41.578, -92.847). Updated through the day.
Growing snapshot for Sully
Last spring frost
May 3
First fall frost
Oct 6
Growing season
155 days
Hardiness zone
5b
More local growing data for Sully: nearby ZIP 50251 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Baxter
Colfax
Kellogg
Lambs Grove
Lynnville
Mingo
Monroe
Newton
Oakland Acres
Prairie City
Reasnor
Valeria
Climate data from the nearest NOAA station, Grinnell 3 Sw, Ia (12.3 mi from Sully). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.