Salem, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Salem, a city in Henry County, Iowa.
Today
85°F
Patchy Fog
Patchy fog and a chance of showers and thunderstorms. Mostly cloudy, with a high near 85. South wind 5 to 10 mph. Chance of precipitation is 30%.
7-day forecast for Salem
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Patchy Fog | 5 to 10 mph S | 26% |
| Tonight | 65°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 mph NW | 78% |
| Sunday | 72°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph NE | 80% |
| Sunday Night | 58°F | Showers And Thunderstorms Likely | 10 mph NE | 65% |
| Monday | 64°F | Showers And Thunderstorms Likely | 10 mph NE | 65% |
| Monday Night | 53°F | Chance Rain Showers | 10 mph NE | 47% |
| Tuesday | 62°F | Chance Rain Showers | 10 mph NE | 41% |
| Tuesday Night | 48°F | Partly Cloudy | 5 mph NE | 4% |
| Wednesday | 66°F | Mostly Sunny | 5 mph NE | 0% |
| Wednesday Night | 51°F | Partly Cloudy | 0 to 5 mph NE | 3% |
| Thursday | 69°F | Partly Sunny | 0 to 5 mph NE | 6% |
| Thursday Night | 55°F | Partly Cloudy | 0 mph | 5% |
| Friday | 72°F | Mostly Sunny | 0 to 5 mph E | 5% |
| Friday Night | 55°F | Partly Cloudy | 0 to 5 mph E | 6% |
Forecast source: National Weather Service (api.weather.gov) for Salem (40.852, -91.621). Updated through the day.
Growing snapshot for Salem
Last spring frost
Apr 30
First fall frost
Oct 10
Growing season
163 days
Hardiness zone
6a
More local growing data for Salem: nearby ZIP 52649 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Coppock
Lowell
Mount Pleasant
Mount Union
New London
Olds
Swedesburg
Trenton
Wayland
Westwood
Winfield
Climate data from the nearest NOAA station, Mt Pleasant 1 Ssw, Ia (8 mi from Salem). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.