Weather

Woman photographs vibrantly colored clouds over lake. The image is repeated in her camera viewscreen.
The high clouds of the summer monsoon season lend to amazing sunsets.

NPS/Trash Trackers

 

National Weather Service Marine Forecasts

Check the Marine webpage for 3-day forecasts and specific information on Lake Powell conditions. Mouse over Lake Powell on the map for an overview, then select either Arizona or Utah side for in-depth area forecasts.

 

General Outlook

The weather in Glen Canyon National Recreation Area is usually typical for the high deserts. Summers are extremely hot with little, if any, shade. Winters are moderately cold with night time lows often below freezing. Spring weather is highly variable and unpredictable with extended periods of winds. Fall weather is usually nice and mild, a great time to beat the heat (and the crowds!).

Temperatures can range from 110° F (38°C) in June & July to O° F (-16°C) in December & January. Precipitation is generally light (less than 6 inches [15.2cm] annually) though heavy rains and flash flooding is possible during the summer and fall "monsoons."

We recommend lightweight, light colored clothing for summer, including a hat. Layers of clothing are best for other times of the year.


Lake Levels

The US Bureau of Reclamation operates and regulates Lake Powell's water levels. View their real-time and historic information on lake operations, including the current levels.


 

Average Weather at Glen Canyon

Temperatures

Average High

Average Low

Lake Surface

Rain/Snow

January

42F/6C

24F/-4C

46F/8C

0.47in/1.2cm

February

51F/11C

30F/-1C

46F/8C

0.43in/1.1cm

March

58F/14C

36F/2C

54F/12C

0.73in/1.9cm

April

68F/20C

43F/6C

54F/12C

0.34in/0.9cm

May

80F/27C

53F/12C

64F/18C

0.43in/1.1cm

June

91F/36C

62F/17C

78F/26C

0.20in/0.5cm

July

97F/36C

69F/21C

78F/26C

0.47in/1.2cm

August

94F/34C

67F/19C

79F/26C

0.67in/1.7cm

September

85F/29C

58F/14C

67F/19C

0.54in/1.4cm

October

71F/22C

47F/8C

67F/19C

0.78in/2.0cm

November

55F/13C

35F/2C

61F/16C

0.59in/1.5cm

December

46F/8C

27F/-3C

51F/11C

0.51in/1.3cm

 

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Last updated: September 15, 2020

Contact the Park

Mailing Address:

PO Box 1507
Page, AZ 86040

Phone:

(928) 608-6200
Receptionist available at Glen Canyon Headquarters from 7 am to 4 pm MST, Monday through Friday. The phone is not monitored when the building is closed.

Contact Us