Southern Utah weekend weather forecast: From Lake Powell to Cedar City, it’s gonna be a hot one

ST. GEORGE — According to the National Weather Service, this weekend’s weather for most of Southern Utah is expected to be warm for all three days, with highs reaching over 100 in some places. A red flag warning and fire weather watch have been issued, so officials are asking travelers and tourists to be careful.

Read on for your St. George, Cedar City, Zion National Park and Lake Powell weekend weather forecast, including current weather advisories.

Read more: TGIF Show: Your weekend adventure guide brought to you by Virgin River Casino 

St. George


Forecast will be sunny with a high of 103 and low of 70. Winds will be 5-9 mph in the afternoon.


A high of 106 and low of 73, with winds of 7-15 mph in the afternoon.


A high of 98 and low of 68, with winds of 11-16 mph.

Read more: Summer heat can kill; protect your family, pets and yourself 

Cedar City


Sunny with a high of 88 and low of 59, with winds of 6-14 mph in the afternoon.


Sunny with a high of 92 and low of 54, with winds of 12-17 mph.


Sunny with a high of 83 and low of 56, with winds of 7-10 mph.

Zion National Park


Friday’s forecast is sunny with a high of 103 and low of 69. Winds will be 7-9 mph in the afternoon.


High of 104 and low of 65, with winds of 8-15 mph.


High of 98 and low of 67, with winds of 6-15 mph.

Read more: As excessive heat warning goes into effect, cars can reach almost 200 degrees inside

Lake Powell


Friday’s forecast near the lake will be sunny with a high of 97 and low of 63. Winds will be 5-10 mph in the afternoon. There will be patchy smoke before noon.


High of 102 and low of 66, with winds of 10-15 mph.


High of 96 and low of 63, with winds of 10-15 mph.

Warnings and advisories

Shaded areas reflect regions covered by a red flag warning issued for June 21-22 | Images courtesy of the National Weather Service, St. George News | Click to enlarge

A red flag warning is in effect until midnight Friday and again Saturday from noon to 11 p.m. for most of Southern Utah as a result of wind and low humidity. Outdoor burning during this time is not recommended.

Read more: ‘If it can spark, it can cause a fire’: Tips on preventing human-caused wildfires

Affected areas include the majority of Washington, Iron, Kane and Beaver counties and portions of San Juan, Garfield and Wayne counties. This includes areas of Manti National Forest, Grand Staircase, Color Country West Desert and Mojave Desert.

In addition, a fire weather watch has been issued near Lake Powell all day Saturday. Rapid rates of fire growth and spread are possible under these conditions.

Please also be aware of current fire restrictions.

Email: [email protected]

Twitter: @STGnews | @markeekaenews

Copyright St. George News, LLC, 2018, all rights reserved.



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