Weather

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 0° 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." Glen Canyon's backcountry varies a great deal in elevation, terrain, and water availablity. All of these are influenced by the weather.

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

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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.

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Average Weather at Glen Canyon

Data taken from Bullfrog, UT. Averages may be different in other districts.

Weather	January	February	March	April	May	June	July	August	September	October	November	December	Annual
Mean Annual Temperature (°F/°C)	35.8 / 2.1	40.7 / 4.8	49.8 / 9.9	58 / 14.4	68.1 / 20	80.1 / 26.7	86.5 / 30.3	83.1 / 28.4	74.4 / 23.5	60 / 15.5	46.2 / 7.9	36.3 / 2.4	60.1 / 15.6
Mean Minimum Temperature (°F/°C)	17 / -8.3	20 / -6.7	26 / -3.3	33 / 0.5	42 / 5.6	53 / 11.7	64 / 17.8	61 / 16.1	49 / 9.4	35 / 1.7	23 / -5	17 / -8.3	15 / -9.4
Mean Maximum Temperature (°F/°C)	57 / 13.9	65 / 18.3	77 / 25	87 / 30.5	96 / 35.6	105 / 40.5	108 / 42.2	103 / 39.4	100 / 37.8	88 / 31.1	73 / 22.8	60 / 15.5	105 / 40.5
Mean Annual Precipitation (in/cm)	0.65 / 1.65	0.57 / 1.45	0.53 / 1.34	0.31 / 0.79	0.29 / 0.74	0.16 / 0.41	0.31 / 0.79	0.55 / 1.39	0.7 / 1.78	0.82 / 2.08	0.36 / 0.914	0.52 / 1.32	5.98 / 15.19

 

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Forecast for Wahweap Area

Hazardous Weather Conditions

Lat: 36.99432643146312 Long: -111.49148475978551

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