Tennant, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Tennant, a city in Shelby County, Iowa.
This Afternoon
57°F
Rain Showers
Rain showers. Cloudy. High near 57, with temperatures falling to around 52 in the afternoon. North northwest wind around 21 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 Tennant
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 57°F | Rain Showers | 21 mph NNW | 75% |
| Tonight | 40°F | Rain Showers | 14 to 20 mph NW | 82% |
| Wednesday | 50°F | Chance Rain Showers | 14 to 17 mph WNW | 33% |
| Wednesday Night | 39°F | Mostly Cloudy then Chance Rain Showers | 13 mph WNW | 35% |
| Thursday | 50°F | Chance Rain Showers | 13 mph NW | 48% |
| Thursday Night | 36°F | Mostly Cloudy | 6 to 9 mph N | 5% |
| Friday | 51°F | Partly Sunny | 2 to 6 mph N | 1% |
| Friday Night | 33°F | Mostly Cloudy | 2 mph SE | 0% |
| Saturday | 56°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 | 5% |
| Sunday Night | 39°F | Mostly Clear | 7 mph SSW | 0% |
| Monday | 63°F | Sunny | 7 to 12 mph WSW | 0% |
| Monday Night | 40°F | Mostly Clear | 6 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Tennant (41.594, -95.445). Updated through the day.
Growing snapshot for Tennant
Last spring frost
Apr 27
First fall frost
Oct 9
Growing season
165 days
Hardiness zone
5b
More local growing data for Tennant: 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 Tennant). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.