UPDATED: Southern Utah weekend weather: Red Flag warning – critical fire conditions

Composite image, St. George News

ST. GEORGE — According to the National Weather Service, this weekend’s weather includes warm temperatures and mostly sunny, breezy days.

Updated Jul. 7, 3:30 p.m.:  See Red Flag warning issued by the National Weather Service at the bottom of this report.

Below are your St. George, Cedar City, Zion National Park and Lake Powell area weekend weather forecasts, including current warnings and advisories. For a look at this weekend’s events, check out the St. George News TGIF Show: Your 4th of July weekend adventure guide brought to you by Virgin River Casino.

St. George


Sunny and hot, with a high near 100 and a low of 70. Northwest winds 5-7 mph becoming southwest in the afternoon and into the evening.

Saturday – light wind

Sunny and hot, with a low around 69. Light and variable wind becoming south-southwest 5-7 mph in the afternoon.



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Cedar City


Sunny, with a high near 86. Northeast wind 8-10 mph becoming west-southwest in the afternoon.

Saturday – moderate winds

Sunny with a high near 87. South-southeast wind 6-9 mph. Saturday evening will be mostly clear with a low around 62. South southwest wind 7-14 mph.


Partly sunny, with a high near 83. South-southwest wind 10-14 mph. Mostly cloudy towards the evening with low around 59.

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Zion National Park/Springdale

Friday – moderate winds

Sunny, with a high near 89. Breezy, with a northwest wind 7-9 mph becoming east-northeast in the morning. Friday night will be mostly clear, with a low around 50 and west southwest wind 5-8 mph.

Saturday – moderate winds

Sunny with a high near 87 and a low around 52. South-southeast wind 7-9 mph becoming southwest in the afternoon.


Mostly sunny, with a high near 84. It will be partly cloudy in the evening with a low around 51.

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Lake Powell/Bullfrog Basin/Halls Crossing


Sunny and hot, with a high near 97. Calm wind becoming west 5-7 mph in the afternoon with a low about 66 and west wind 5-7 mph becoming calm in the evening.


Sunny and hot with a high near 98. West-southwest wind 3-7 mph. Mostly clear in the evening with a low around 69.


Mostly sunny and hot with a high near 96. Mostly cloudy in the evening with a low around 68.

Weather warnings and advisories

The National Weather Service has issued a red flag warning for western Utah that is advising that gusty southwest winds and low humidity values will result in critical fire weather conditions for portions of western Utah. Isolated to scattered showers and thunderstorms are forecast in areas east of I-15, a few of which may be capable of producing locally strong, erratic winds.

Additionally, dry and breezy conditions persist across many southern and central Utah valleys Monday, contributing to the development of critical fire weather conditions.

For the most current conditions, warnings and advisories, go to the National Weather Service-Salt Lake City office website.

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Twitter: @STGnews

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