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.
Summary
Grand County is a county in Utah. Grand County is a county in the United States. It has a population of about 9.600.
Right now it is 84°F (29°C) in Grand County with partly cloudy. It feels like 80°F. Today runs from 68°F to 98°F. Chance of precipitation is 15%. Sightseeing conditions score 8.6/10 - excellent - go now.
The best time to visit Grand County is April, May, June, July, August and September. 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 99°F, while January is the coldest with lows near 26°F.
The closest major airport is Salt Lake City International Airport (SLC), about 200 mi away. Nearby highlights include Arches National Park, Dead Horse Point State Park, Canyonlands National Park and Goblin Valley State Park.
In plain terms. Today is slightly warmer than average for August. The forecast high of 98°F is 3.1°F above the 95°F typical for this month. The best window to be outside is roughly 7 AM to 10 AM, when temperature, rain chance and wind line up best. family time is the strongest bet in Grand County today at 9/10. Gusts to 32 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 County
Derived from the forecast. No official alert feed is wired for this country yet.
Weather in Grand County right now
Source: Open-Meteo. Updated 10:38 AM, Aug 24 local time.
See the Grand County forecast by time range
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
16-day forecast for Grand County
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Sun, Aug 23 | ☁️ Overcast | 98° / 68° | 15% | 21 mph | 8 |
| Mon, Aug 24 | ☁️ Overcast | 97° / 72° | 10% | 24 mph | 8 |
| Tue, Aug 25 | 🌦️ Light drizzle | 98° / 69° | 4% · 0,0 in | 8 mph | 8 |
| Wed, Aug 26 | 🌦️ Light showers | 100° / 75° | 5% · 0,1 in | 12 mph | 8 |
| Thu, Aug 27 | 🌦️ Light drizzle | 100° / 76° | 5% · 0,0 in | 24 mph | 8 |
| Fri, Aug 28 | ☁️ Overcast | 100° / 77° | 3% | 16 mph | 8 |
| Sat, Aug 29 | 🌦️ Light drizzle | 96° / 74° | 15% · 0,0 in | 8 mph | 8 |
| Sun, Aug 30 | 🌦️ Light drizzle | 101° / 77° | 16% · 0,0 in | 17 mph | 8 |
| Mon, Aug 31 | 🌦️ Drizzle | 89° / 76° | 14% · 0,1 in | 21 mph | 7 |
| Tue, Sep 1 | ☁️ Overcast | 91° / 69° | 15% | 9 mph | 8 |
| Wed, Sep 2 | 🌤️ Mainly clear | 97° / 74° | 8% | 6 mph | 8 |
| Thu, Sep 3 | ⛅ Partly cloudy | 100° / 77° | 13% | 8 mph | 8 |
| Fri, Sep 4 | ☀️ Clear sky | 102° / 77° | 29% | 7 mph | 8 |
| Sat, Sep 5 | ☁️ Overcast | 100° / 79° | 36% | 18 mph | 6 |
| Sun, Sep 6 | ☁️ Overcast | 92° / 76° | 27% | 11 mph | 7 |
| Mon, Sep 7 | ⛅ Partly cloudy | 93° / 73° | 16% | 13 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).
Weather map for Grand County
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 County
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 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.
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 10:38 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 24, 2026 at 10:38 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
