Shelby, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Shelby, a city in Shelby County, Iowa.
This Afternoon
58°F
Rain Showers
Rain showers. Cloudy. High near 58, with temperatures falling to around 53 in the afternoon. North northwest wind around 20 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Shelby
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 58°F | Rain Showers | 20 mph NNW | 78% |
| Tonight | 41°F | Rain Showers then Cloudy | 14 to 20 mph NW | 77% |
| Wednesday | 51°F | Chance Rain Showers | 14 to 17 mph WNW | 29% |
| Wednesday Night | 39°F | Mostly Cloudy then Chance Rain Showers | 9 to 13 mph WNW | 33% |
| Thursday | 51°F | Chance Rain Showers | 13 mph NW | 46% |
| Thursday Night | 36°F | Mostly Cloudy | 5 to 9 mph N | 5% |
| Friday | 52°F | Partly Sunny | 5 mph N | 1% |
| Friday Night | 33°F | Mostly Cloudy | 2 mph ESE | 0% |
| Saturday | 57°F | Mostly Sunny | 2 to 6 mph SW | 3% |
| Saturday Night | 36°F | Mostly Clear | 3 mph W | 5% |
| Sunday | 61°F | Sunny | 6 mph WSW | 4% |
| Sunday Night | 39°F | Mostly Clear | 7 mph SSW | 0% |
| Monday | 64°F | Sunny | 7 to 12 mph SW | 0% |
| Monday Night | 41°F | Mostly Clear | 6 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Shelby (41.506, -95.449). Updated through the day.
Growing snapshot for Shelby
Last spring frost
Apr 27
First fall frost
Oct 9
Growing season
165 days
Hardiness zone
5b
More local growing data for Shelby: nearby ZIP 51570 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Harlan, Ia (10.6 mi from Shelby). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.