Grand County Weather Forecast
Grand County weather: 84°F, partly cloudy. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Grand County weather in August
Weather map for Grand County
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Climate in Grand County 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 | 43° | 26° | 0,4 in | ★★★☆☆ |
| February | 53° | 32° | 1,1 in | ★★★☆☆ |
| March | 65° | 40° | 0,7 in | ★★★★☆ |
| April | 71° | 45° | 0,5 in | ★★★★★ |
| May | 80° | 53° | 0,5 in | ★★★★★ |
| June | 95° | 67° | 0,2 in | ★★★★★ |
| July | 99° | 72° | 0,3 in | ★★★★☆ |
| August | 95° | 70° | 0,3 in | ★★★★★ |
| September | 86° | 61° | 0,2 in | ★★★★★ |
| October | 72° | 48° | 1,7 in | ★★★★☆ |
| November | 55° | 34° | 1,1 in | ★★★☆☆ |
| December | 45° | 28° | 0,5 in | ★★★☆☆ |
Climate type: Semi-arid. Source: Open-Meteo archive (ERA5).
Best time to visit Grand County
Go in April, May, June, July, August and September. 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.
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- Avoid long hikes after mid-morning; start at dawn or leave it for a cooler day.
- Avoid exposed ridgelines, small boats and rooftop viewpoints while gusts stay above 32 mph.
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
How Grand County compares with nearby places
Annual averages, and the difference against Grand County.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Moab | 0 mi | 60°F | about the same | 8 in |
| Arches National Park | 11 mi | 58°F | 34°F cooler | 7 in |
| Dead Horse Point State Park | 12 mi | 55°F | 37°F cooler | 7 in |
| Canyonlands National Park | 25 mi | 58°F | 34°F cooler | 5 in |
| Goblin Valley State Park | 63 mi | 57°F | 35°F cooler | 5 in |
See the Grand County forecast by time range
Grand County weather - more answers
Explore Grand County
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 County?
Grand County is a county in Utah. Its coordinates are 38.5733, -109.5498. It lies in North America.
What is the weather like in Grand County right now?
It is currently 84°F (29°C) with partly cloudy. Humidity is 31% and wind is 10 mph.
When is the best time to visit Grand County?
April, May, June, July, August and September offer the most comfortable conditions in Grand County, which has a semi-arid climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Grand County in?
Grand County observes America/Denver (UTC-06:00). The local time is 2:29 PM.
How many people live in Grand County?
Grand County has a population of approximately 9.600.
What is the nearest airport to Grand County?
The closest airports are Salt Lake City International Airport (SLC), 200 mi away and Denver International Airport (DEN), 276 mi away.
What are the top things to do in Grand County?
Popular options include Arches National Park, Dead Horse Point State Park, Canyonlands National Park, Goblin Valley State Park, Capitol Reef National Park and Black Canyon of the Gunnison National Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (us-counties) - 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 2:29 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
