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United States weather

Weather in Grand County, Utah for May 2026

Your guide to Grand County weather in May - trends and predictions

    Temperatures

  • So far, May 2026 in Grand County is slightly warmer than the historical average by 1.6 °F.

  • The forecast for the coming days of May 2026 predicts a temperature of 28.4 °F , which is warmer than usual.

  • In general, the average temperature in Grand County at the beginning of May is 20.1 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 28.3 °F by the end of May.

    • Rain 🌧️

  • With an average of 3 rainy days, Grand County experiences minimal rainfall in May.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
28
Dry days
Average rainy days
3
Rainy days
Average snowy days
0
Snow days
Average temperatures
23°/10°
Temperatures
Average wind speed
29 km/h
Avg max wind
Average humidity
31 %
Avg humidity

Grand County Weather May

Move between months or click on a day
April
June
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Cloudy
20°
2
Sunny
21°
3
Partly cloudy
23°
4
Partly cloudy
22°
5
Overcast
19°
6
Patchy rain possible
16°
7
Sunny
20°
8
Sunny
21°
9
Overcast
23°
10
Sunny
29°
11
Sunny
30°
12
Sunny
33°
13
Patchy rain possible
32°
14
Sunny
29°
15
Sunny
24°
16
Sunny
26°
17
Sunny
30°
18
Sunny
32°
19
Sunny
31°
20
Sunny
29°
21
Partly cloudy
27°
22
Partly cloudy
27°
23
Patchy rain possible
19°
24
Partly cloudy
25°
25
Cloudy
25°
26
Sunny
25°
27
Sunny
28°
28
Sunny
30°
29
Sunny
31°
30
Overcast
29°
31
Partly cloudy
30°

Temperatures trend during May in Grand County

See the weather trend as well as the moving average line

May weather in Grand County day by day

Click on a date for more information
April June
Date Weather Temperatures Rain UV More
May 1 Cloudy
Cloudy
 20° /8° 0 mm 7
May 2 Sunny
Sunny
 21° /6° 0 mm 7
May 3 Partly cloudy
Partly cloudy
 23° /8° 0 mm 7
May 4 Partly cloudy
Partly cloudy
 22° /9° 0 mm 7
May 5 Overcast
Overcast
 19° /7° 3.6 mm 6
May 6 Patchy rain possible
Patchy rain possible
 16° /6° 2.7 mm 6
May 7 Sunny
Sunny
 20° /5° 0 mm 7
May 8 Sunny
Sunny
 21° /7° 0 mm 7
May 9 Overcast
Overcast
 23° /10° 0 mm 8
May 10 Sunny
Sunny
 29° /11° 0 mm 9.7
May 11 Sunny
Sunny
 30° /13° 0 mm 9.9
May 12 Sunny
Sunny
 33° /16° 0 mm 0
May 13 Patchy rain possible
Patchy rain possible
 32° /18° 0.2 mm 5
May 14 Sunny
Sunny
 29° /16° 0 mm 6
May 15 Sunny
Sunny
 24° /10° 0 mm 5
May 16 Sunny
Sunny
 26° /9° 0 mm 5
May 17 Sunny
Sunny
 30° /11° 0 mm 6
May 18 Sunny
Sunny
 32° /16° 0 mm 6
May 19 Sunny
Sunny
 31° /16° 0 mm 6
May 20 Sunny
Sunny
 29° /17° 0 mm 6
May 21 Partly cloudy
Partly cloudy
 27° /19° 0 mm 6
May 22 Partly cloudy
Partly cloudy
 27° /16° 0 mm 6
May 23 Patchy rain possible
Patchy rain possible
 19° /10° 0.2 mm 3
May 24 Partly cloudy
Partly cloudy
 25° /9° 0 mm 6
May 25 Cloudy
Cloudy
 25° /12° 0.1 mm 6
May 26 Sunny
Sunny
 25° /9° 0 mm 7
May 27 Sunny
Sunny
 28° /12° 0 mm 7
May 28 Sunny
Sunny
 30° /15° 0 mm 8
May 29 Sunny
Sunny
 31° /15° 0 mm 8
May 30 Overcast
Overcast
 29° /13° 0 mm 7
May 31 Partly cloudy
Partly cloudy
 30° /15° 0 mm 8
Next
Important Notice
Our weather forecast for Grand County in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Grand County forecast closer to your planned date for the most up-to-date weather information.
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Grand County in May - FAQ

What are the expected maximum and minimum temperatures in Grand County during May?

Enjoy moderate daytime temperatures of up to 23° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Grand County during May?

Expect minimal rainfall in Grand County during May, with a total of 10.7 mm over approximately 3 days. This minimal precipitation is unlikely to significantly impact plans.

What are the typical wind conditions in Grand County during May?

The average wind speed in Grand County during May is 29 km/h, suggesting breezy to windy conditions, depending on your activities.

May rainfall patterns in Grand County

Explore the daily rainfall trends and prepare for Grand Countys May weather 💧
Typically, Grand County has 3 rainy days in May with a total of 10.7 mm of rainfall.

UV exposure in Grand County during May

Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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Location coordinates Where is Grand County?

Get accurate weather forecasts for Grand County, located at latitude 38.573 and longitude -109.55. Stay updated with localized weather information tailored for Grand County.

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