Portage, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Portage, a town in Box Elder County, Utah.
This Afternoon
65°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny. High near 65, with temperatures falling to around 63 in the afternoon. West northwest wind around 7 mph. Chance of precipitation is 30%.
7-day forecast for Portage
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 65°F | Chance Showers And Thunderstorms | 7 mph WNW | 26% |
| Tonight | 41°F | Mostly Clear | 6 mph N | 4% |
| Sunday | 71°F | Sunny | 5 mph ENE | 1% |
| Sunday Night | 44°F | Mostly Clear | 5 mph NE | 0% |
| Monday | 76°F | Sunny | 3 mph E | 0% |
| Monday Night | 49°F | Partly Cloudy | 3 mph ENE | 1% |
| Tuesday | 77°F | Partly Sunny | 3 to 7 mph ESE | 6% |
| Tuesday Night | 50°F | Slight Chance Showers And Thunderstorms | 5 mph SSE | 23% |
| Wednesday | 77°F | Sunny | 2 to 7 mph SSE | 12% |
| Wednesday Night | 50°F | Mostly Clear | 2 to 6 mph SE | 3% |
| Thursday | 81°F | Sunny | 2 to 8 mph SE | 0% |
| Thursday Night | 52°F | Mostly Clear | 2 to 6 mph SE | 0% |
| Friday | 81°F | Sunny | 2 to 10 mph SE | 6% |
| Friday Night | 52°F | Partly Cloudy then Slight Chance Rain Showers | 3 to 8 mph SSE | 16% |
Forecast source: National Weather Service (api.weather.gov) for Portage (41.976, -112.241). Updated through the day.
Growing snapshot for Portage
Last spring frost
May 3
First fall frost
Oct 12
Growing season
160 days
Hardiness zone
6a
More local growing data for Portage: nearby ZIP 84330 weather · frost dates · planting calendar · Utah frost dates
Nearby towns & communities
Bear River City
Brigham City
Corinne
Deweyville
Elwood
Fielding
Garland
Honeyville
Howell
Mantua
Perry
Plymouth
Riverside
Snowville
Thatcher
Tremonton
Climate data from the nearest NOAA station, Cutler Dam, Ut (7.7 mi from Portage). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.