Thor, IA Weather & Growing Conditions
Today
77°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy. High near 77, with temperatures falling to around 74 in the afternoon. North wind 8 to 12 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Showers And Thunderstorms | 8 to 12 mph N | 92% |
| Tonight | 57°F | Showers And Thunderstorms Likely | 3 to 8 mph N | 60% |
| Wednesday | 77°F | Partly Sunny | 5 mph NNE | 7% |
| Wednesday Night | 52°F | Mostly Clear | 3 mph ESE | 2% |
| Thursday | 82°F | Sunny | 1 to 6 mph S | 1% |
| Thursday Night | 59°F | Mostly Clear | 7 mph S | 1% |
| Friday | 85°F | Sunny | 5 to 12 mph S | 8% |
| Friday Night | 65°F | Chance Showers And Thunderstorms | 6 to 10 mph S | 26% |
| Saturday | 88°F | Slight Chance Showers And Thunderstorms then Sunny | 5 to 15 mph S | 15% |
| Saturday Night | 69°F | Slight Chance Showers And Thunderstorms | 9 to 15 mph SSE | 21% |
| Sunday | 88°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 12 mph SE | 21% |
| Sunday Night | 69°F | Slight Chance Showers And Thunderstorms | 10 mph SE | 32% |
| Monday | 87°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 10 to 14 mph SE | 32% |
| Monday Night | 68°F | Slight Chance Showers And Thunderstorms | 9 to 15 mph ENE | 31% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Thor, IA
Last spring frost
Apr 26
First fall frost
Oct 12
Growing season
169 days
Hardiness zone
5a
Explore more for Thor, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Dakota City, Ia (7.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.