Luther, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Luther, a city in Boone County, Iowa.
Tonight
61°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy. Low around 61, with temperatures rising to around 63 overnight. North wind around 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Luther
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 61°F | Chance Showers And Thunderstorms | 10 mph N | 42% |
| Sunday | 64°F | Chance Rain Showers then Chance Drizzle | 13 mph NE | 36% |
| Sunday Night | 55°F | Rain Showers Likely | 12 mph NE | 64% |
| Monday | 58°F | Rain Showers | 12 mph NE | 85% |
| Monday Night | 51°F | Rain Showers Likely | 7 to 10 mph NE | 72% |
| Tuesday | 60°F | Slight Chance Rain Showers then Partly Sunny | 8 mph NE | 17% |
| Tuesday Night | 47°F | Partly Cloudy | 2 to 7 mph ENE | 3% |
| Wednesday | 64°F | Mostly Sunny | 5 mph E | 0% |
| Wednesday Night | 52°F | Partly Cloudy | 3 mph ESE | 10% |
| Thursday | 66°F | Chance Rain Showers | 2 to 6 mph SE | 25% |
| Thursday Night | 57°F | Slight Chance Rain Showers | 3 mph SE | 22% |
| Friday | 68°F | Slight Chance Rain Showers | 2 to 6 mph ESE | 19% |
| Friday Night | 58°F | Mostly Cloudy | 3 mph ESE | 12% |
| Saturday | 69°F | Chance Rain Showers | 5 to 8 mph SE | 31% |
Forecast source: National Weather Service (api.weather.gov) for Luther (41.967, -93.818). Updated through the day.
Growing snapshot for Luther
Last spring frost
Apr 23
First fall frost
Oct 14
Growing season
173 days
Hardiness zone
5a
More local growing data for Luther: nearby ZIP 50152 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Ames 8 Wsw, Ia (4.2 mi from Luther). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.