Weather Forecast for Zion National Park

Utah, United States of America

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Current Weather - Zion National Park: 25°C

Utah, United States of America

Clear

Feels like 24°C

Wind

4 km/h ENE

Humidity

28%

Pressure

1012 mb

UV Index

0

Visibility

10 km

Sunny

Sunny

Wednesday, August 05, 2026

High

39°C

Low

24°C

Rain Chance

0%

Hourly Forecast

Sunny 38°C
14:00
Sunny 39°C
15:00
Sunny 36°C
16:00
Sunny 36°C
17:00
Sunny 36°C
18:00
Sunny 35°C
19:00
Sunny 34°C
20:00
Clear 26°C
21:00
Clear 25°C
22:00
Clear 24°C
23:00
Aug 06

Day Statistics

Maximum Wind

31 km/h

Humidity

21%

Precipitation

0 mm

UV Index

10

Visibility

10 km

Rain Chance

0%

Snow Chance

0%

Sun & Moon

Sunrise

06:39 AM

Sunset

08:35 PM

Moonrise

Does not rise today

Moonset

01:47 PM

Moon Phase

Last Quarter

Moon Illumination

44%

Air Quality

PM2.5

5.5

μg/m³

PM10

13.2

μg/m³

NO₂

1.1

μg/m³

O₃

104.7

μg/m³

SO₂

0.7

μg/m³

CO

94.6

μg/m³

US EPA Index: 1 GB DEFRA Index: 1

Weather Alerts

Extreme Heat Warning issued August 4 at 5:54PM PDT until August 8 at 8:00PM PDT by NWS Las Vegas NV

Northwest Plateau; Lake Havasu and Fort Mohave; Lake Mead - AZ side; Lake Mohave - AZ side; Hualapai Mountains; Northwest Deserts; Death Valley National Park; Western Mojave Desert; Eastern Mojave Desert, Including the Mojave National Preserve; Morongo Basin; Cadiz Basin; San Bernardino County-Upper Colorado River Valley; Owens Valley South; Owens Valley North; Esmeralda and Central Nye County; Lincoln County; Northeast Clark County; Western Clark and Southern Nye County; Las Vegas Valley; Southern Clark County; Lake Mead - NV side; Lake Mohave - NV side Aug 4, 05:54 PM - Aug 5, 06:00 PM
Severity: Severe Urgency: Expected

* WHAT...Dangerously hot conditions with highs 110 to 120 degrees across the Mojave Desert. Highs 95 to 105 degrees across most of the southern Great Basin and Arizona Strip. Little to no overnight relief is expected, particularly in the Mojave Desert where lows of 80 to 95 degrees are forecast. This will result in Major-to-Extreme Heat Risk. * WHERE...Portions of northwest Arizona, southeast California, and south central and southern Nevada. * WHEN...Until 8 PM PDT /8 PM MST/ Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Monitor the latest forecasts and warnings for updates.

Event: Extreme Heat Warning Certainty: Likely Category: Met

Extreme Heat Warning issued August 4 at 8:28PM MST until August 7 at 8:00PM MST by NWS Flagstaff AZ

Marble and Glen Canyons Aug 4, 08:28 PM - Aug 5, 04:30 AM
Severity: Severe Urgency: Expected

* WHAT...Dangerously hot conditions, with temperatures up to 107. * WHERE...Marble and Glen Canyons. * WHEN...Until 8 PM MST /9 PM MDT/ Friday. * IMPACTS...Most individuals will be at risk for heat-related illnesses without effective cooling or adequate hydration, especially with prolonged outdoor exposure.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take action when you see symptoms of heat exhaustion and heat stroke. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Stay cool, stay hydrated, stay informed.

Event: Extreme Heat Warning Certainty: Likely Category: Met