Worthington, IA Weather & Growing Conditions
Today
78°F
Occasional Showers And Thunderstorms then Showers And Thunderstorms Likely
Occasional showers and thunderstorms before 11am, then showers and thunderstorms likely. Some of the storms could produce heavy rain. Mostly cloudy, with a high near 78. South wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 78°F | Occasional Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 10 mph S | 78% |
| Tonight | 60°F | Showers And Thunderstorms | 5 to 10 mph NW | 80% |
| Sunday | 66°F | Chance Rain Showers | 10 to 15 mph NE | 43% |
| Sunday Night | 54°F | Chance Rain Showers | 15 mph NE | 36% |
| Monday | 63°F | Chance Rain Showers | 15 mph NE | 36% |
| Monday Night | 49°F | Chance Rain Showers | 10 to 15 mph NE | 38% |
| Tuesday | 62°F | Chance Rain Showers then Partly Sunny | 10 to 15 mph NE | 38% |
| Tuesday Night | 46°F | Partly Cloudy | 5 to 10 mph NE | 4% |
| Wednesday | 65°F | Sunny | 5 to 10 mph NE | 1% |
| Wednesday Night | 49°F | Partly Cloudy | 0 to 5 mph NE | 2% |
| Thursday | 66°F | Mostly Sunny | 5 mph NE | 8% |
| Thursday Night | 52°F | Partly Cloudy | 0 to 5 mph E | 5% |
| Friday | 69°F | Mostly Sunny | 5 mph E | 5% |
| Friday Night | 52°F | Partly Cloudy | 0 to 5 mph E | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Worthington, IA
Last spring frost
Apr 28
First fall frost
Oct 10
Growing season
164 days
Hardiness zone
5a
Explore more for Worthington, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Cascade, Ia (8.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.