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: 9:53 PM CDT  ·  Refresh
34°C
Feels like 32°
Mostly Cloudy
▲ 34°  /  ▼ 21°
Wind
6 mph ENE
Humidity
21%
Dew Point
7°
Pressure
25.24 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
71%
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 34°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
34°
24%
9 PM
33°
7%
10 PM
32°
7%
11 PM
31°
3%
12 AM
31°
32%
1 AM
29°
21%
2 AM
29°
6%
3 AM
28°
18%
4 AM
28°
6%
5 AM
24°
6%
6 AM
25°
6%
7 AM
26°
8%
8 AM
28°
5%
9 AM
30°
5%
10 AM
32°
5%
11 AM
33°
5%
12 PM
33°
5%
1 PM
36°
5%
2 PM
36°
5%
3 PM
37°
19%
4 PM
37°
19%
5 PM
36°
19%
6 PM
35°
23%
7 PM
34°
19%
7-Day Forecast
Tonight
34° 21°
Mostly Cloudy with a 24% chance of rain.
Mon
37° 23°
Partly Cloudy with a 21% chance of rain.
Tue
37° 19°
Clear.
Wed
36° 19°
Partly Cloudy.
Thu
37° 19°
Clear.
Fri
38° 21°
Clear.
Sat
39° 20°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 34° Mostly Cloudy 24% 6 mph ENE 21%
9 PM 33° Overcast 7% 6 mph SE 21%
10 PM 32° Overcast 7% 7 mph SSE 24%
11 PM 31° Overcast 3% 6 mph SE 26%
12 AM 31° Rain 32% 7 mph SE 27%
1 AM 29° Mostly Cloudy 21% 7 mph SE 28%
2 AM 29° Mostly Cloudy 6% 7 mph SSE 30%
3 AM 28° Mostly Cloudy 18% 8 mph SE 31%
4 AM 28° Overcast 6% 7 mph SE 32%
5 AM 24° Overcast 6% 7 mph SE 32%
6 AM 25° Mostly Cloudy 6% 6 mph SE 31%
7 AM 26° Mostly Cloudy 8% 6 mph SSE 30%
8 AM 28° Partly Cloudy 5% 9 mph S 28%
9 AM 30° Mostly Clear 5% 9 mph SSW 25%
10 AM 32° Partly Cloudy 5% 9 mph SW 22%
11 AM 33° Partly Cloudy 5% 8 mph SW 19%
12 PM 33° Partly Cloudy 5% 7 mph WSW 18%
1 PM 36° Partly Cloudy 5% 7 mph WSW 18%
2 PM 36° Partly Cloudy 5% 8 mph W 18%
3 PM 37° Partly Cloudy 19% 7 mph WNW 18%
4 PM 37° Partly Cloudy 19% 7 mph NW 18%
5 PM 36° Partly Cloudy 19% 8 mph NNW 18%
6 PM 35° Partly Cloudy 23% 8 mph NNW 21%
7 PM 34° Partly Cloudy 19% 8 mph NW 23%
15-Day Forecast
Today
7/26
Mostly Cloudy
24%
21°
34°
Mon
7/27
Partly Cloudy
21%
23°
37°
Tue
7/28
Clear
17%
19°
37°
Wed
7/29
Partly Cloudy
18%
19°
36°
Thu
7/30
Clear
3%
19°
37°
Fri
7/31
Clear
3%
21°
38°
Sat
8/1
Clear
8%
20°
39°
Sun
8/2
Clear
8%
21°
38°
Mon
8/3
Clear
3%
19°
37°
Tue
8/4
Clear
3%
19°
37°
Wed
8/5
Clear
3%
18°
36°
Thu
8/6
Clear
25%
19°
36°
Fri
8/7
Clear
25%
19°
36°
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, 01:00'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
SBCAPE27 J/kg
MLCAPE70 J/kg
MUCAPE98 J/kg
SBCIN-338 J/kg
MLCIN0 J/kg
Lifted Index-0.5
Kinematics
0–6 km Shear25 kt
0–1 km Shear4 kt
Eff. Shear—
0–1 km SRH-19
0–3 km SRH-55
Eff. SRH—
Storm Motion165° @ 16 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado-0.0
STP (eff)—
Supercell—
K-Index30.2
Thermo & Levels
PWAT1.08 in
0–3 km LR8.6 °C/km
700–500 LR9.0 °C/km
Total Totals52.4
LCL577 hPa
LFC516 hPa
EL398 hPa
Freezing Lvl12,743 ft