Thor, IA Weather & Growing Conditions
Today
75°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 4pm. Mostly cloudy. High near 75, with temperatures falling to around 73 in the afternoon. North northwest wind around 9 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 | 75°F | Chance Showers And Thunderstorms | 9 mph NNW | 31% |
| Tonight | 59°F | Slight Chance Rain Showers | 12 mph NNE | 18% |
| Sunday | 67°F | Chance Drizzle | 15 mph NE | 28% |
| Sunday Night | 53°F | Chance Rain Showers | 12 mph ENE | 47% |
| Monday | 61°F | Chance Rain Showers | 12 mph ENE | 50% |
| Monday Night | 48°F | Chance Rain Showers | 6 to 9 mph ENE | 40% |
| Tuesday | 61°F | Mostly Sunny | 7 mph ENE | 8% |
| Tuesday Night | 44°F | Mostly Clear | 2 to 6 mph E | 0% |
| Wednesday | 66°F | Sunny | 5 mph ESE | 1% |
| Wednesday Night | 49°F | Partly Cloudy | 3 mph ESE | 11% |
| Thursday | 67°F | Slight Chance Rain Showers | 2 to 6 mph SE | 16% |
| Thursday Night | 53°F | Mostly Cloudy | 3 mph SE | 7% |
| Friday | 70°F | Partly Sunny | 2 to 7 mph SE | 7% |
| Friday Night | 54°F | Mostly Cloudy | 5 mph SE | 11% |
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 Sep 19, 2026.