Grand Canyon National Park Weather Forecast
Grand Canyon National Park weather: 85°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Summary
Grand Canyon National Park is a national park in Arizona. Grand Canyon National Park is a US national park known for a mile-deep canyon carved by the Colorado.
Right now it is 85°F (29°C) in Grand Canyon National Park with clear. It feels like 81°F. Today runs from 67°F to 102°F. Chance of precipitation is 23%. Sightseeing conditions score 8.7/10 - excellent - go now.
The best time to visit Grand Canyon National Park is April, May, June, September and October. The climate is semi-arid. January, February and December tend to be the least comfortable months. July is the warmest month with average highs near 101°F, while January is the coldest with lows near 34°F.
The closest major airport is Harry Reid International Airport (LAS), about 170 mi away. Nearby highlights include Colorado River, Grand Canyon (UNESCO World Heritage Site), Havasu Falls and Horseshoe Bend.
In plain terms. Today is slightly warmer than average for August. The forecast high of 102°F is 5.4°F above the 97°F typical for this month. The best window to be outside is roughly 6 PM to 9 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in Grand Canyon National Park today at 9.3/10. Gusts to 33 mph will push high-sided vehicles on exposed roads and bridges.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Active alerts for Grand Canyon National Park
Extreme Heat Warning issued August 24 at 12:46AM MST until August 28 at 8:00PM MST by NWS Flagstaff AZ
Issued by NWS Flagstaff AZ
Weather in Grand Canyon National Park right now
Source: Open-Meteo. Updated 3:00 PM, Aug 24 local time.
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
16-day forecast for Grand Canyon National Park
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Sun, Aug 23 | ☁️ Overcast | 102° / 67° | 23% | 23 mph | 8 |
| Mon, Aug 24 | 🌦️ Drizzle | 100° / 74° | 15% · 0,0 in | 23 mph | 8 |
| Tue, Aug 25 | 🌤️ Mainly clear | 103° / 72° | 8% | 8 mph | 8 |
| Wed, Aug 26 | ☁️ Overcast | 102° / 80° | 5% | 12 mph | 8 |
| Thu, Aug 27 | 🌦️ Light drizzle | 103° / 80° | 4% · 0,0 in | 10 mph | 8 |
| Fri, Aug 28 | ☁️ Overcast | 102° / 78° | 9% | 11 mph | 8 |
| Sat, Aug 29 | 🌦️ Light drizzle | 102° / 79° | 18% · 0,0 in | 14 mph | 8 |
| Sun, Aug 30 | 🌦️ Light showers | 99° / 75° | 26% · 0,2 in | 13 mph | 7 |
| Mon, Aug 31 | 🌦️ Light drizzle | 95° / 76° | 31% · 0,0 in | 15 mph | 6 |
| Tue, Sep 1 | ☁️ Overcast | 98° / 77° | 15% | 7 mph | 8 |
| Wed, Sep 2 | ☀️ Clear sky | 102° / 81° | 15% | 8 mph | 8 |
| Thu, Sep 3 | ⛅ Partly cloudy | 104° / 84° | 19% | 7 mph | 8 |
| Fri, Sep 4 | ☁️ Overcast | 103° / 81° | 26% | 8 mph | 6 |
| Sat, Sep 5 | 🌦️ Light showers | 98° / 76° | 25% · 0,2 in | 13 mph | 7 |
| Sun, Sep 6 | 🌦️ Light drizzle | 93° / 75° | 13% · 0,0 in | 7 mph | 7 |
| Mon, Sep 7 | 🌦️ Drizzle | 94° / 79° | 26% · 0,1 in | 13 mph | 5 |
Climate in Grand Canyon National Park month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 51° | 34° | 1,0 in | ★★★☆☆ |
| February | 60° | 38° | 1,8 in | ★★★☆☆ |
| March | 69° | 44° | 1,4 in | ★★★★☆ |
| April | 74° | 47° | 0,9 in | ★★★★★ |
| May | 85° | 57° | 0,4 in | ★★★★★ |
| June | 98° | 69° | 0,6 in | ★★★★☆ |
| July | 101° | 73° | 0,6 in | ★★★★☆ |
| August | 97° | 72° | 1,1 in | ★★★★☆ |
| September | 90° | 65° | 0,4 in | ★★★★★ |
| October | 79° | 56° | 1,3 in | ★★★★☆ |
| November | 63° | 43° | 1,1 in | ★★★★☆ |
| December | 56° | 38° | 0,5 in | ★★★★☆ |
Climate type: Semi-arid. Source: Open-Meteo archive (ERA5).
Weather map for Grand Canyon National Park
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Air quality and pollen in Grand Canyon National Park
Air quality: Open-Meteo (CAMS). US AQI scale.
Sun, twilight and moon
Golden and blue hour are the standard photographic approximation around sunrise and sunset.
Best time to visit Grand Canyon National Park
Go in April, May, June, September and October. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, February and December - expect the least comfortable mix of heat, cold or rain.
Explore Grand Canyon National Park
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Grand Canyon National Park?
Grand Canyon National Park is a national park in Arizona. Its coordinates are 36.1069, -112.1129. It lies in North America.
What is the weather like in Grand Canyon National Park right now?
It is currently 85°F (29°C) with clear. Humidity is 22% and wind is 3 mph.
When is the best time to visit Grand Canyon National Park?
April, May, June, September and October offer the most comfortable conditions in Grand Canyon National Park, which has a semi-arid climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Grand Canyon National Park in?
Grand Canyon National Park observes America/Phoenix (UTC-07:00). The local time is 3:00 PM.
What is the nearest airport to Grand Canyon National Park?
The closest airports are Harry Reid International Airport (LAS), 170 mi away and Phoenix Sky Harbor International Airport (PHX), 185 mi away.
What are the top things to do in Grand Canyon National Park?
Popular options include Colorado River, Grand Canyon (UNESCO World Heritage Site), Havasu Falls, Horseshoe Bend, Antelope Canyon and Lake Powell.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (national-parks) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 24, 2026 at 3:00 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
