New Harmony, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for New Harmony, a town in Washington County, Utah.
Tonight
39°F
Mostly Clear
Mostly clear, with a low around 39. East southeast wind 1 to 10 mph.
7-day forecast for New Harmony
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 39°F | Mostly Clear | 1 to 10 mph ESE | 8% |
| Wednesday | 51°F | Sunny | 1 to 9 mph NNW | 8% |
| Wednesday Night | 35°F | Mostly Clear | 3 to 10 mph N | 0% |
| Thursday | 54°F | Mostly Sunny | 0 to 5 mph N | 0% |
| Thursday Night | 37°F | Mostly Clear | 0 to 7 mph N | 0% |
| Friday | 53°F | Sunny | 7 to 10 mph N | 0% |
| Friday Night | 37°F | Mostly Clear | 8 to 14 mph NNE | 0% |
| Saturday | 57°F | Sunny | 1 to 8 mph NNE | 0% |
| Saturday Night | 41°F | Clear | 3 mph NE | 0% |
| Sunday | 62°F | Sunny | 0 to 6 mph SE | 0% |
| Sunday Night | 44°F | Partly Cloudy | 1 mph ESE | 0% |
| Monday | 61°F | Mostly Sunny | 0 to 6 mph S | 2% |
| Monday Night | 45°F | Partly Cloudy | 0 mph | 2% |
| Tuesday | 59°F | Mostly Sunny | 0 to 5 mph S | 5% |
Forecast source: National Weather Service (api.weather.gov) for New Harmony (37.480, -113.309). Updated through the day.
Growing snapshot for New Harmony
Last spring frost
May 9
First fall frost
Oct 11
Growing season
155 days
Hardiness zone
7a
More local growing data for New Harmony: nearby ZIP 84757 weather · frost dates · planting calendar · Utah frost dates
Nearby towns & communities
Apple Valley
Central
Dammeron Valley
Enterprise
Hildale
Hurricane
Ivins
La Verkin
Leeds
Pine Valley
Rockville
Santa Clara
Springdale
St. George
Toquerville
Veyo
Virgin
Washington
Climate data from the nearest NOAA station, New Harmony, Ut (1.1 mi from New Harmony). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.