Salt Lake City, Utah Weather
Thunder retreats as the monsoon dies. Day 93 of summer. Read this microseason across nine climate regions →
Salt Lake City weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 3:33 AM MDT · Open-Meteo
- TodaySep 21Overcast later——80°50°—
- TuesdaySep 22Overcast39%0.13″75°59°-5°
- WednesdaySep 23Partly Cloudy16%—79°62°+4°
- ThursdaySep 24Clear——84°63°+5°
- FridaySep 25Overcast——85°67°+1°
- SaturdaySep 26Partly Cloudy——82°64°-3°
- SundaySep 27Overcast19%—87°69°+5°
Air quality now AQI 53 · Moderate
AQI 53 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 19.4 µg/m³ (AQI 70) with a 0.88 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in stagnant air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 19.4 µg/m³ (AQI 70) with a 0.88 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.88
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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).
September dries up ditches or breaks down bridges.
- Moonrise
- 5:04 PM
- Moonset
- 1:50 AM
- In sign
- ♑︎ Capricorn
Thunder retreats as the monsoon dies
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
Salt Lake City at a glance
- Today vs. normal: Today averages 65°F (high 80°F, low 50°F), about the 65°F normal for Sep 21
- Last frost: March 31 (1991–2020 median, NOAA station 3 km away)
- Microseason: Sep 21–25
- Planting calendar: September — harvest tomatoes, peppers, beans, summer squash, winter squash
15-Day Forecast — Salt Lake City
- Mon80°50°3%
- Tue75°59°39%
- Wed79°62°16%
- Thu84°63°1%
- Fri85°67°7%
- Sat82°64°8%
- Sun87°69°19%
- Mon78°65°23%
- Tue84°64°5%
- Wed88°68°8%
- Thu69°61°13%
- Fri76°60°13%
- Sat89°56°17%
- Sun60°50°16%
- Mon69°52°13%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Salt Lake City
Interactive wind and temperature map centered on Salt Lake City — it loads in your browser. Open the full weather map.
Right now in the garden
Late season
As of September 21, the first frost (around November 8) is about 7 weeks away. Frost-tender plants keep producing until then. This city's planting calendar for September: harvest tomatoes, peppers, beans, summer squash, and winter squash.
SPC Convective Outlook
Storm Prediction Center — Salt Lake City
SPC includes Salt Lake City in the general thunderstorm area tomorrow — no severe risk, but storms are possible.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook.
Sun & seasons in Salt Lake City
Salt Lake City sits in Salt Lake County, where the year’s longest day runs 15h 6m of daylight and its shortest just 9h 15m — a swing of +5h 51m 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 is the state’s largest city. The nearest town Salt Lake City tracks is West Valley City, roughly 7 miles to the SW.
Air quality in Salt Lake City
Air quality in Salt Lake 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 Salt Lake City.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| March | lettuce, peas, spinach, radishes | — |
| April | lettuce, peas, spinach, radishes | lettuce, 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 | — | tomatoes, peppers, beans, summer squash, winter squash |
| October | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| November | — | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| December | — | fall brassicas, carrots |
A year in weather
In Salt Lake City, July runs warmest near 81°F and December coldest around 28°F, while March is the wettest month (2.6 inches) and June the driest (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 North Salt Lake, UT, South Salt Lake, UT, Woods Cross, UT
Salt Lake City swings from 29°F in January to 81°F in July (51°F) per modelled 1991-2020 normals (EC_Earth3P_HR model via Open-Meteo); precipitation in Salt Lake City runs about 19.7 inches.
Precipitation in Salt Lake City peaks in the cool season: March averages 2.6 inches, while June bottoms out at 0.5 inches. That groups Salt Lake City with places like North Salt Lake, UT, South Salt Lake, UT and Woods Cross, UT on the same cool-season storm track.
Around March 31, Salt Lake City sheds its freezing nights — kale, peas, spinach, and parsnips go into Salt Lake City's beds. Salt Lake City's heat-lovers — tomatoes, peppers, squash — hold off until Salt Lake City's frost risk clears, 10-14 days on. The season ends by November 8 in Salt Lake City, once hard frosts set back in. Open lawns in Salt Lake City whiten first when frost returns.
Similar climates: North Salt Lake, UT, South Salt Lake, UT, Woods Cross, UT, Bountiful, UT, West Valley City, UT.
Frequently asked
- When does it freeze in Salt Lake City?
- Frost typically leaves Salt Lake City by March 31 and returns to Salt Lake City near November 8.
- What is the rainy season in Salt Lake City?
- Salt Lake City sees its heaviest rain in March (around 2.6 inches), part of roughly 20 inches a year.
- What is the warmest month in Salt Lake City?
- On average July tops the year in Salt Lake City at about 81°F.
- What is the coldest month in Salt Lake City?
- The coldest stretch in Salt Lake City falls in December, around 28°F on average.
- When can I start a vegetable garden in Salt Lake City?
- Around March 31, start frost-hardy crops in Salt Lake City; tomatoes and basil belong a fortnight later.
- What hardiness zone is Salt Lake City?
- With December around 28°F, Salt Lake City's zone reflects that minimum — the USDA ZIP map confirms Salt Lake City's band.
- What is the 10-day forecast for Salt Lake City?
- Salt Lake 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 Salt Lake City?
- See this week's day-by-day rain chances for Salt Lake City in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Salt Lake City?
- Current conditions for Salt Lake 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 Salt Lake City forecast updated?
- The Salt Lake 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 Salt Lake City?
- Today's sunrise and sunset times for Salt Lake 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 Salt Lake City?
- The next few days in Salt Lake City's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Salt Lake City sits at 40.8°N; its climate zone is cold semi-arid (Köppen approximation).
ZIP codes in Salt Lake City
- 84101
- 84102
- 84103
- 84104
- 84105
- 84106
- 84107
- 84108
- 84109
- 84110
- 84111
- 84112
- 84113
- 84114
- 84115
- 84116
- 84117
- 84118
- 84121
- 84122
- 84123
- 84124
- 84128
- 84129
- 84132
- 84133
- 84134
- 84138
- 84139
- 84143
- 84145
- 84147
- 84148
- 84150
- 84151
- 84152
- 84158
- 84180
- 84199