Mendon, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mendon, a city in Cache County, Utah.
This Afternoon
73°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy. High near 73, with temperatures falling to around 68 in the afternoon. West wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Mendon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Chance Showers And Thunderstorms | 5 mph W | 72% |
| Tonight | 47°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 1 to 5 mph WNW | 71% |
| Saturday | 67°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 mph WNW | 41% |
| Saturday Night | 43°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 mph ENE | 19% |
| Sunday | 70°F | Sunny | 2 mph N | 0% |
| Sunday Night | 45°F | Mostly Clear | 3 mph ESE | 0% |
| Monday | 76°F | Sunny | 3 mph N | 0% |
| Monday Night | 50°F | Partly Cloudy | 3 mph ENE | 1% |
| Tuesday | 77°F | Partly Sunny | 3 mph NNE | 4% |
| Tuesday Night | 50°F | Slight Chance Showers And Thunderstorms | 3 mph SE | 19% |
| Wednesday | 78°F | Sunny | 3 mph S | 4% |
| Wednesday Night | 50°F | Mostly Clear | 5 mph SE | 4% |
| Thursday | 81°F | Sunny | 3 mph E | 3% |
| Thursday Night | 52°F | Partly Cloudy | 2 to 6 mph SE | 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 Sep 19, 2026.