West Valley City, Utah Weather
Granite bones emerge from cover. Day 50 of autumn. Read this microseason across nine climate regions →
West Valley City weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 1:05 PM MST · Open-Meteo
- TodayNov 10Clear——59°37°—
- WednesdayNov 11Clear——60°39°+1°
- ThursdayNov 12Overcast——63°42°+3°
- FridayNov 13Overcast——62°48°-1°
- SaturdayNov 14Showers69%0.53″52°40°-10°
- SundayNov 15Heavy Drizzle14%0.12″50°40°-2°
- MondayNov 16Overcast37%—57°41°+7°
Air quality now AQI 71 · Moderate
AQI 71 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 15.5 µg/m³, PM10 at 21.4 µg/m³ — typical background levels with no transport signature.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 30 now. With UV 2.6 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 10.
- Present
- AQI 30
- UV peak
- 2.6 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 10
PM × Wind × Precip
PM2.5 at 15.5 µg/m³, PM10 at 21.4 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.72
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- background
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
When the wind is in the west, the weather is at its best.
- Moonrise
- 8:54 AM
- Moonset
- 5:15 PM
- In sign
- ♐︎ Sagittarius
Granite bones emerge from cover
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
West Valley City at a glance
- Today vs. normal: Today averages 48°F (high 59°F, low 37°F), 8°F above the 40°F normal for Nov 10
- Last frost: April 8 (1991–2020 median, NOAA station 11 km away)
- Microseason: Nov 6–10
- Planting calendar: November — harvest fall brassicas, carrots
16-Day Forecast — West Valley City
- Tue59°37°0%
- Wed60°39°0%
- Thu63°42°0%
- Fri62°48°6%
- Sat52°40°69%
- Sun50°40°14%
- Mon57°41°37%
- Tue48°35°68%
- Wed42°32°61%
- Thu38°28°53%
- Fri36°28°51%
- Sat38°27°31%
- Sun39°28°12%
- Mon42°31°19%
- Tue48°35°26%
- Wed45°35°19%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near West Valley City
Interactive wind and temperature map centered on West Valley City — it loads in your browser. Open the full weather map.
Right now in the garden
Post-frost dormancy
As of November 10, the season's first frost (typically October 31) is due or past. Bring frost-tender plants indoors, mulch overwintering beds, and turn spent plantings under. This city's planting calendar for November: harvest fall brassicas and carrots.
Sun & seasons in West Valley City
West Valley City sits in Salt Lake County, where the year’s longest day runs 15h 5m of daylight and its shortest just 9h 15m — a swing of +5h 50m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Salt Lake City, the state’s largest city, lies about 7 miles to the NE. The nearest town West Valley City tracks is Salt Lake City, roughly 7 miles to the NE.
Air quality in West Valley City
Air quality in West Valley City’s county has trended cleaner since 2020; its cleanest year on record was 2020 (median AQI 54). See the full air-quality history for West Valley City.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| March | lettuce, peas, spinach, radishes | — |
| April | lettuce, peas, spinach, radishes | spinach, radishes |
| May | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, spinach, garlic |
| July | tomatoes, peppers, beans, squash | beans, summer squash, garlic |
| August | beans, squash, fall brassicas, carrots | tomatoes, peppers, beans, summer squash |
| September | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash |
| October | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| November | — | fall brassicas, carrots |
A year in weather
July is West Valley City's warmest stretch (~81°F) and December its coldest (~28°F); precipitation crests in March at 2.6 inches and ebbs in June to 0.5 inches.
| Month | Mean temp | Precip |
|---|---|---|
| January | 29° | 2.0″ |
| February | 32° | 1.8″ |
| March | 38° | 2.6″ |
| April | 46° | 2.4″ |
| May | 58° | 1.7″ |
| June | 71° | 0.5″ |
| July | 81° | 0.7″ |
| August | 79° | 0.9″ |
| September | 68° | 1.2″ |
| October | 53° | 1.3″ |
| November | 37° | 2.3″ |
| December | 28° | 2.2″ |
Regional context
Similar climates Kearns, UT, Taylorsville, UT, West Jordan, UT
West Valley City's climate, from modelled 1991-2020 normals (EC_Earth3P_HR model via Open-Meteo), pairs 29°F Januarys with 81°F Julys — a 51°F swing. About 19.7 inches of precipitation falls each year.
Cool-season fronts carry West Valley City's rain: March logs 2.6 inches, against June's 0.5 inches — winter does the heavy lifting in West Valley City. That groups West Valley City with places like Kearns, UT, Taylorsville, UT and West Jordan, UT on the same cool-season storm track.
The cool-season window in West Valley City starts at April 8, when nights stop freezing — think kale, peas, spinach, and parsnips. In West Valley City, warm-season transplants — tomatoes, peppers, basil — wait two weeks past West Valley City's frost date. West Valley City's window closes around October 31 as West Valley City's overnight lows return below freezing. In about half of years, West Valley City's last freeze comes after April 8.
Similar climates: Kearns, UT, Taylorsville, UT, West Jordan, UT, South Salt Lake, UT, Murray, UT.
Frequently asked
- When does it freeze in West Valley City?
- Frost typically leaves West Valley City by April 8 and returns to West Valley City near October 31.
- What is the rainy season in West Valley City?
- Rainfall in West Valley City peaks in March near 2.6 inches, out of about 20 inches annually.
- What is the warmest month in West Valley City?
- The warmest stretch in West Valley City comes in July, around 81°F on average.
- What is the coldest month in West Valley City?
- On average December is the chilliest month in West Valley City, about 28°F.
- When can I start a vegetable garden in West Valley City?
- Time tomatoes in West Valley City for two weeks after April 8; peas and greens start at West Valley City's frost line.
- What hardiness zone is West Valley City?
- West Valley City's USDA zone comes from its December mean (28°F); enter the ZIP on the USDA lookup for the number.
- What is the 10-day forecast for West Valley City?
- West Valley City's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in West Valley City?
- See this week's day-by-day rain chances for West Valley City in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in West Valley City?
- Current conditions for West Valley City and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the West Valley City forecast updated?
- The West Valley City forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in West Valley City?
- Today's sunrise and sunset times for West Valley City are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for West Valley City?
- The next few days in West Valley City's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
West Valley City sits at 40.7°N; its climate zone is cold semi-arid (Köppen approximation).
ZIP codes in West Valley City
- 84118
- 84119
- 84120
- 84125
- 84126
- 84127
- 84128
- 84130
- 84131
- 84170