Roy, UT Weather & Growing Conditions
Tonight
50°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Partly cloudy. Low around 50, with temperatures rising to around 52 overnight. West northwest wind 1 to 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 50°F | Slight Chance Showers And Thunderstorms | 1 to 5 mph WNW | 23% |
| Saturday | 69°F | Mostly Sunny | 5 mph S | 9% |
| Saturday Night | 48°F | Mostly Clear | 5 mph NE | 1% |
| Sunday | 72°F | Sunny | 5 mph N | 0% |
| Sunday Night | 50°F | Partly Cloudy | 3 mph ENE | 0% |
| Monday | 78°F | Mostly Sunny | 2 to 6 mph N | 0% |
| Monday Night | 54°F | Partly Cloudy | 5 mph NE | 7% |
| Tuesday | 77°F | Partly Sunny | 2 to 6 mph S | 8% |
| Tuesday Night | 54°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 2 to 6 mph E | 20% |
| Wednesday | 79°F | Sunny | 2 to 6 mph S | 3% |
| Wednesday Night | 54°F | Mostly Clear | 2 to 6 mph ENE | 3% |
| Thursday | 82°F | Sunny | 1 to 6 mph SSE | 3% |
| Thursday Night | 56°F | Partly Cloudy | 2 to 6 mph E | 5% |
| Friday | 82°F | Mostly Sunny | 3 to 7 mph SSE | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Roy, UT
Last spring frost
Apr 22
First fall frost
Oct 22
Growing season
180 days
Hardiness zone
7a
Explore more for Roy, UT: full frost dates · planting calendar · Utah frost dates
Climate data from the nearest NOAA station, Ogden Hinkley Ap, Ut (2.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.