Luther, IA Weather & Growing Conditions
Overnight
67°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy. Low around 67, with temperatures rising to around 69 overnight. South wind around 7 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 67°F | Chance Showers And Thunderstorms | 7 mph S | 38% |
| Saturday | 78°F | Chance Showers And Thunderstorms | 8 mph W | 53% |
| Saturday Night | 61°F | Chance Showers And Thunderstorms | 9 mph N | 32% |
| Sunday | 65°F | Chance Rain Showers | 13 mph NNE | 38% |
| Sunday Night | 55°F | Chance Rain Showers | 12 mph ENE | 54% |
| Monday | 61°F | Rain Showers Likely | 12 mph NE | 55% |
| Monday Night | 51°F | Rain Showers Likely | 7 to 10 mph NE | 55% |
| Tuesday | 60°F | Partly Sunny | 8 mph ENE | 9% |
| Tuesday Night | 46°F | Partly Cloudy | 2 to 6 mph E | 2% |
| Wednesday | 65°F | Mostly Sunny | 5 mph E | 1% |
| Wednesday Night | 51°F | Partly Cloudy | 3 mph ESE | 6% |
| Thursday | 65°F | Slight Chance Rain Showers | 5 mph ESE | 19% |
| Thursday Night | 55°F | Mostly Cloudy | 3 mph ESE | 10% |
| Friday | 68°F | Partly Sunny | 6 mph ESE | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Luther, IA
Last spring frost
Apr 23
First fall frost
Oct 14
Growing season
173 days
Hardiness zone
5a
Explore more for Luther, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Ames 8 Wsw, Ia (4.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.