Excessive Heat Watch 1:00 AM Excessive Heat Warning — Glen Canyon Recreation Area/Lake Powell, UT, Eastern Juab/Millard Counties, UT, Sanpete Valley, UT, Sevier Valley, UT, Castle Country, UT, Great Salt Lake Desert and Mountains, UT, Tooele and Rush Valleys, UT, Western Uinta Basin, UT, Eastern Box Elder County, UT, Northern Wasatch Front, UT, Salt Lake Valley, UT, Utah Valley, UT, Cache Valley/Utah Portion, UT, Zion National Park, UT, South Central Utah, UT, Western Canyonlands, UT 1:00 AM

Salt Lake City, Utah

Last updated: 11:23 PM CDT  ·  Refresh
32°C
Feels like 31°
Mostly Cloudy
▲ 32°  /  ▼ 24°
Wind
7 mph SE
Humidity
24%
Dew Point
8°
Pressure
25.26 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
84%
Sunrise
6:17 AM
Sunset
8:48 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Salt Lake City is currently mostly cloudy at 32°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:17AM · Sunset: 8:48PM.

Alerts

Excessive Heat Watch
Expires 1:00 AM
Excessive Heat Warning
Glen Canyon Recreation Area/Lake Powell, UT, Eastern Juab/Millard Counties, UT, Sanpete Valley, UT, Sevier Valley, UT, Castle Country, UT, Great Salt Lake Desert and Mountains, UT, Tooele and Rush Valleys, UT, Western Uinta Basin, UT, Eastern Box Elder County, UT, Northern Wasatch Front, UT, Salt Lake Valley, UT, Utah Valley, UT, Cache Valley/Utah Portion, UT, Zion National Park, UT, South Central Utah, UT, Western Canyonlands, UT
Expires 1:00 AM
71 AQI · Moderate Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
32°
3%
11 PM
32°
3%
12 AM
31°
3%
1 AM
31°
20%
2 AM
29°
3%
3 AM
29°
3%
4 AM
28°
21%
5 AM
28°
18%
6 AM
24°
6%
7 AM
26°
17%
8 AM
27°
8%
9 AM
28°
8%
10 AM
31°
9%
11 AM
32°
9%
12 PM
32°
9%
1 PM
33°
9%
2 PM
36°
9%
3 PM
36°
22%
4 PM
35°
22%
5 PM
36°
19%
6 PM
36°
19%
7 PM
34°
15%
8 PM
33°
15%
9 PM
32°
5%
7-Day Forecast
Tonight
32° 24°
Mostly Cloudy.
Mon
36° 23°
Mostly Cloudy with a 22% chance of rain.
Tue
36° 21°
Mostly Clear with a 23% chance of rain.
Wed
33° 21°
Overcast.
Thu
36° 18°
Partly Cloudy.
Fri
38° 21°
Clear.
Sat
39° 21°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 32° Mostly Cloudy 3% 7 mph SE 24%
11 PM 32° Overcast 3% 6 mph SE 25%
12 AM 31° Overcast 3% 5 mph SSE 25%
1 AM 31° Rain 20% 6 mph SSE 26%
2 AM 29° Mostly Cloudy 3% 7 mph SSE 28%
3 AM 29° Mostly Cloudy 3% 7 mph SSE 30%
4 AM 28° Mostly Cloudy 21% 7 mph SSE 31%
5 AM 28° Overcast 18% 7 mph SSE 32%
6 AM 24° Overcast 6% 7 mph SSE 33%
7 AM 26° Mostly Cloudy 17% 7 mph SSE 31%
8 AM 27° Mostly Cloudy 8% 7 mph S 30%
9 AM 28° Partly Cloudy 8% 9 mph S 28%
10 AM 31° Partly Cloudy 9% 9 mph SSW 25%
11 AM 32° Partly Cloudy 9% 8 mph SW 22%
12 PM 32° Mostly Cloudy 9% 7 mph WSW 20%
1 PM 33° Mostly Cloudy 9% 8 mph W 19%
2 PM 36° Partly Cloudy 9% 9 mph WNW 19%
3 PM 36° Partly Cloudy 22% 9 mph WNW 19%
4 PM 35° Partly Cloudy 22% 7 mph NW 20%
5 PM 36° Partly Cloudy 19% 8 mph NNW 20%
6 PM 36° Partly Cloudy 19% 8 mph NNW 21%
7 PM 34° Partly Cloudy 15% 8 mph NNW 23%
8 PM 33° Partly Cloudy 15% 8 mph NNW 26%
9 PM 32° Partly Cloudy 5% 8 mph NW 29%
15-Day Forecast
Today
7/26
Mostly Cloudy
3%
24°
32°
Mon
7/27
Mostly Cloudy
22%
23°
36°
Tue
7/28
Mostly Clear
23%
21°
36°
Wed
7/29
Overcast
18%
21°
33°
Thu
7/30
Partly Cloudy
3%
18°
36°
Fri
7/31
Clear
3%
21°
38°
Sat
8/1
Clear
8%
21°
39°
Sun
8/2
Clear
8%
21°
38°
Mon
8/3
Clear
3%
19°
36°
Tue
8/4
Clear
3%
20°
37°
Wed
8/5
Clear
3%
19°
36°
Thu
8/6
Clear
25%
19°
36°
Fri
8/7
Clear
25%
19°
35°
Sat
8/8
Clear
25%
19°
34°
Sun
8/9
Clear
25%
19°
34°
71
Moderate
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
37 AQI 6.8 µg/m³
O3
Ground-level ozone
Dominant
71 AQI 61 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 71 Moderate 71 37
Tue 77 Moderate 77 38
Wed 58 Moderate 58 46
About the Air Quality Index
0–50 Good
51–100 Moderate
101–150 Unhealthy for Sensitive Groups
151–200 Unhealthy
201–300 Very Unhealthy
301–500 Hazardous

The U.S. AQI runs 0–500. The overall value equals the highest individual pollutant sub-index, and the dominant pollutant is the one driving it. PM2.5 (fine particles) is reported in µg/m³ and ozone (O3) in ppb. Forecast source: NWS NAQFC.

1000850700500400300250200150100 -40-30-20-10010203040 0.41247101624 LCLLFCEL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Mon Jul 27, 03:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE41 J/kg
MLCAPE142 J/kg
MUCAPE218 J/kg
SBCIN-444 J/kg
MLCIN0 J/kg
Lifted Index-0.2
Kinematics
0–6 km Shear19 kt
0–1 km Shear14 kt
Eff. Shear6 kt
0–1 km SRH-40
0–3 km SRH-21
Eff. SRH2
Storm Motion173° @ 20 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado-0.0
STP (eff)0.0
Supercell0.0
K-Index30.9
Thermo & Levels
PWAT1.15 in
0–3 km LR8.2 °C/km
700–500 LR8.8 °C/km
Total Totals52.0
LCL600 hPa
LFC507 hPa
EL374 hPa
Freezing Lvl12,661 ft