Cottonwood Heights, Utah Weather
Monsoon storms drench the south. Day 14 of summer. Read this microseason across nine climate regions →
Cottonwood Heights weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Mostly Clear——94°67°—
- SundayJul 5Overcast——98°77°+4°
- MondayJul 6Overcast17%—98°76°0°
- TuesdayJul 7Overcast17%—98°75°0°
- WednesdayJul 8Clear——101°74°+3°
- ThursdayJul 9Clear——95°73°-6°
- FridayJul 10Clear——99°74°+4°
AQI 37 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 7.8 µg/m³ (AQI 43) with a 0.65 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 9 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 37 now. With UV 5.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 25 around 1 PM.
- Present
- AQI 37
- UV peak
- 5.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 25
PM × Wind × Precip
PM2.5 at 7.8 µg/m³ (AQI 43) with a 0.65 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.65
- Wind
- light
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:24 PM
- Moonset
- 10:36 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Cottonwood Heights at a glance
- Today vs. normal: 8°F above the seasonal normal for this latitude
- Last frost: April 20 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Cottonwood Heights
- Sat94°67°0%
- Sun98°77°0%
- Mon98°76°17%
- Tue98°75°17%
- Wed101°74°5%
- Thu95°73°1%
- Fri99°74°1%
- Sat107°75°3%
- Sun105°79°6%
- Mon103°78°18%
- Tue98°76°18%
- Wed101°78°18%
- Thu102°76°17%
- Fri100°77°21%
- Sat102°79°23%
- Sun103°78°16%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Cottonwood Heights
SPC includes Cottonwood Heights in the general thunderstorm area day after tomorrow — no severe risk, but storms are possible.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
ZIP codes in Cottonwood Heights
- 84093
- 84121
- 84171