Mendon, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mendon, a city in Cache County, Utah.
Today
89°F
Patchy Smoke
Patchy smoke. Sunny, with a high near 89. Northwest wind around 6 mph.
7-day forecast for Mendon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Patchy Smoke | 6 mph NW | 0% |
| Tonight | 54°F | Areas Of Smoke | 2 to 6 mph WNW | 0% |
| Wednesday | 91°F | Areas Of Smoke | 2 to 6 mph WNW | 0% |
| Wednesday Night | 57°F | Areas Of Smoke then Mostly Clear | 5 mph S | 0% |
| Thursday | 97°F | Sunny | 2 to 6 mph WSW | 0% |
| Thursday Night | 62°F | Clear | 5 mph SE | 0% |
| Friday | 100°F | Sunny | 2 to 6 mph S | 0% |
| Friday Night | 64°F | Mostly Clear | 3 to 7 mph ESE | 0% |
| Saturday | 100°F | Sunny | 2 to 7 mph NW | 0% |
| Saturday Night | 66°F | Mostly Clear | 3 to 8 mph SSE | 0% |
| Sunday | 98°F | Mostly Sunny | 3 to 9 mph S | 2% |
| Sunday Night | 66°F | Mostly Clear | 5 to 9 mph SSE | 1% |
| Monday | 96°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 10 mph S | 15% |
| Monday Night | 65°F | Partly Cloudy | 5 to 8 mph SSE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Mendon (41.712, -111.978). Updated through the day.
Growing snapshot for Mendon
Last spring frost
May 8
First fall frost
Oct 2
Growing season
145 days
Hardiness zone
6a
More local growing data for Mendon: nearby ZIP 84325 weather · frost dates · planting calendar · Utah frost dates
Nearby towns & communities
Amalga
Avon
Benson
Cache
Clarkston
Cornish
Hyde Park
Hyrum
Lewiston
Logan
Millville
Newton
Nibley
North Logan
Paradise
Peter
Providence
Richmond
River Heights
Smithfield
Trenton
Wellsville
Climate data from the nearest NOAA station, Logan Radio Kvnu, Ut (7.3 mi from Mendon). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.