Grand County Weather Forecast
Grand County weather: 72°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Snow forecast for Grand County
No snow is in the current forecast window for Grand County.
0 of the next 16 nights are forecast to reach freezing.
Historically, average lows drop below freezing in January and December.
16-day forecast for Grand County
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Thu, Aug 20 | ☁️ Overcast | 104° / 72° | 2% | 9 mph | 8 |
| Fri, Aug 21 | ☁️ Overcast | 104° / 77° | 8% | 17 mph | 8 |
| Sat, Aug 22 | 🌦️ Drizzle | 99° / 78° | 29% · 0,1 in | 11 mph | 8 |
| Sun, Aug 23 | 🌦️ Light showers | 98° / 71° | 29% · 0,1 in | 10 mph | 8 |
| Mon, Aug 24 | 🌦️ Light drizzle | 98° / 77° | 12% · 0,0 in | 16 mph | 8 |
| Tue, Aug 25 | 🌦️ Light drizzle | 99° / 77° | 6% · 0,0 in | 6 mph | 7 |
| Wed, Aug 26 | ⛅ Partly cloudy | 100° / 75° | 6% | 7 mph | 8 |
| Thu, Aug 27 | 🌦️ Light drizzle | 101° / 79° | 6% · 0,0 in | 17 mph | 8 |
| Fri, Aug 28 | 🌦️ Light drizzle | 101° / 76° | 11% · 0,0 in | 12 mph | 7 |
| Sat, Aug 29 | 🌦️ Light drizzle | 95° / 71° | 15% · 0,1 in | 7 mph | 8 |
| Sun, Aug 30 | 🌧️ Heavy drizzle | 94° / 73° | 16% · 0,3 in | 25 mph | 8 |
| Mon, Aug 31 | 🌦️ Light drizzle | 93° / 72° | 21% · 0,0 in | 23 mph | 8 |
| Tue, Sep 1 | ☁️ Overcast | 97° / 74° | 39% | 13 mph | 8 |
| Wed, Sep 2 | ☁️ Overcast | 98° / 81° | 28% | 15 mph | 8 |
| Thu, Sep 3 | ☁️ Overcast | 100° / 77° | 27% | 7 mph | 8 |
| Fri, Sep 4 | 🌦️ Light drizzle | 99° / 73° | 29% · 0,1 in | 18 mph | 7 |
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).
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.
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
See the Grand County forecast by time range
Grand County weather - more answers
Explore Grand County
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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 72°F (22°C) with clear. Humidity is 30% and wind is 5 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 4:05 AM.
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 21, 2026 at 4:05 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
