Excessive Heat Watch 10:00 PM Excessive Heat Warning — Lower Washington County, UT, Zion National Park, UT, South Central Utah, UT, Capitol Reef National Park and Vicinity, UT, Western Canyonlands, UT, Glen Canyon Recreation Area/Lake Powell, UT, Great Salt Lake Desert and Mountains, UT, Eastern Juab/Millard Counties, UT, Castle Country, UT, San Rafael Swell, UT, Tooele and Rush Valleys, UT, Northern Wasatch Front, UT, Salt Lake Valley, UT, Utah Valley, UT, Western Uinta Basin, UT, Western Millard and Juab Counties, UT, Southwest Utah, UT 10:00 PM

Lower Mountain, Washington County, Utah, United States

Last updated: 5:19 PM CDT  ·  Refresh
24°C
Feels like 24°
Partly Cloudy
▲ 28°  /  ▼ 17°
Wind
5 mph N
Humidity
57%
Dew Point
14°
Pressure
24.46 inHg
Visibility
10 mi
UV Index
7.0
Cloud Cover
58%
Sunrise
6:33 AM
Sunset
8:41 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Lower Mountain is currently partly cloudy at 24°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 949 J/kg) — isolated convective development possible. Sunrise: 6:33AM · Sunset: 8:41PM.

Alerts

Excessive Heat Watch
Expires 10:00 PM
Excessive Heat Warning
Lower Washington County, UT, Zion National Park, UT, South Central Utah, UT, Capitol Reef National Park and Vicinity, UT, Western Canyonlands, UT, Glen Canyon Recreation Area/Lake Powell, UT, Great Salt Lake Desert and Mountains, UT, Eastern Juab/Millard Counties, UT, Castle Country, UT, San Rafael Swell, UT, Tooele and Rush Valleys, UT, Northern Wasatch Front, UT, Salt Lake Valley, UT, Utah Valley, UT, Western Uinta Basin, UT, Western Millard and Juab Counties, UT, Southwest Utah, UT
Expires 10:00 PM
47 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
32%
5 PM
23°
18%
6 PM
26°
13%
7 PM
26°
13%
8 PM
24°
11%
9 PM
23°
9%
10 PM
22°
9%
11 PM
22°
3%
12 AM
21°
3%
1 AM
21°
3%
2 AM
20°
3%
3 AM
19°
3%
4 AM
19°
3%
5 AM
19°
3%
6 AM
17°
3%
7 AM
18°
3%
8 AM
20°
3%
9 AM
22°
3%
10 AM
22°
3%
11 AM
26°
3%
12 PM
26°
3%
1 PM
27°
3%
2 PM
30°
3%
3 PM
30°
3%
7-Day Forecast
Today
28° 17°
Partly Cloudy with a 32% chance of rain.
Thu
33° 17°
Clear.
Fri
34° 19°
Clear.
Sat
36° 19°
Clear.
Sun
37° 22°
Clear.
Mon
36° 22°
Clear.
Tue
36° 21°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 24° Partly Cloudy 32% 5 mph N 57%
5 PM 23° Mostly Clear 18% 4 mph NW 50%
6 PM 26° Clear 13% 5 mph WNW 45%
7 PM 26° Clear 13% 4 mph N 46%
8 PM 24° Clear 11% 3 mph NE 46%
9 PM 23° Clear 9% 2 mph E 48%
10 PM 22° Clear 9% 3 mph ESE 49%
11 PM 22° Clear 3% 4 mph ESE 51%
12 AM 21° Clear 3% 5 mph ESE 53%
1 AM 21° Clear 3% 5 mph ESE 55%
2 AM 20° Clear 3% 5 mph ESE 56%
3 AM 19° Clear 3% 6 mph SE 58%
4 AM 19° Clear 3% 6 mph SE 59%
5 AM 19° Clear 3% 6 mph SE 60%
6 AM 17° Clear 3% 6 mph SE 60%
7 AM 18° Clear 3% 5 mph SE 55%
8 AM 20° Clear 3% 5 mph SSE 50%
9 AM 22° Clear 3% 5 mph S 44%
10 AM 22° Clear 3% 4 mph SSW 36%
11 AM 26° Clear 3% 5 mph SW 30%
12 PM 26° Clear 3% 6 mph SW 26%
1 PM 27° Clear 3% 6 mph SW 26%
2 PM 30° Clear 3% 6 mph SW 25%
3 PM 30° Clear 3% 6 mph WSW 25%
15-Day Forecast
Today
7/29
Partly Cloudy
32%
17°
28°
Thu
7/30
Clear
3%
17°
33°
Fri
7/31
Clear
3%
19°
34°
Sat
8/1
Clear
3%
19°
36°
Sun
8/2
Clear
3%
22°
37°
Mon
8/3
Clear
3%
22°
36°
Tue
8/4
Clear
8%
21°
36°
Wed
8/5
Mostly Clear
18%
21°
36°
Thu
8/6
Drizzle
60%
21°
33°
Fri
8/7
Drizzle
60%
19°
32°
Sat
8/8
Drizzle
60%
16°
32°
Sun
8/9
Clear
25%
22°
31°
Mon
8/10
Clear
25%
22°
31°
Tue
8/11
Drizzle
60%
22°
30°
Wed
8/12
Drizzle
60%
22°
30°
47
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
17 AQI 3.1 µg/m³
O3
Ground-level ozone
Dominant
47 AQI 52 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 47 Good 47 17
Fri 50 Good 50 19
Sat 58 Moderate 58 16
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 Wed Jul 29, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE756 J/kg
MLCAPE235 J/kg
MUCAPE756 J/kg
SBCIN-124 J/kg
MLCIN0 J/kg
Lifted Index-3.1
Kinematics
0–6 km Shear27 kt
0–1 km Shear18 kt
Eff. Shear25 kt
0–1 km SRH-78
0–3 km SRH-87
Eff. SRH-87
Storm Motion196° @ 22 kt
0–1 km EHI-0.4
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index—
Thermo & Levels
PWAT1.08 in
0–3 km LR7.4 °C/km
700–500 LR7.0 °C/km
Total Totals—
LCL715 hPa
LFC637 hPa
EL217 hPa
Freezing Lvl10,623 ft