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Weather in Flagstaff, Arizona for May 2026

Your guide to Flagstaff weather in May - trends and predictions

    Official Weather Alert ⚠️

  • Wind Advisory - See hour by hour.

  • Snow Forecast ❄️

  • With an average of 2 snowy days, Flagstaff usually enjoys a light touch of snow in May.
    According to Flagstaff snow forecast for May 2026, no snow is expected until the end of the month.

  • Temperatures

  • So far, May 2026 in Flagstaff is slightly warmer than the historical average by 0.8 °F.

  • The forecast for the next days in Flagstaff predicts the temperature to be 27.7 °F, significantly warmer than the historical average.

  • In general, the average temperature in Flagstaff at the beginning of May is 14.9 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 20.6 °F by the end of May.

  • Rain 🌧️

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

  • More

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

Average dry days
26
Dry days
Average rainy days
3
Rainy days
Average snowy days
2
Snow days
Average temperatures
19°/8°
Temperatures
Average wind speed
24 km/h
Avg max wind
Average humidity
30 %
Avg humidity

Flagstaff Weather May

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Temperatures trend during May in Flagstaff

See the weather trend as well as the moving average line

May weather in Flagstaff day by day

Click on a date for more information
Date Weather Temperatures Rain Snow More
May 1 Sunny
Sunny
17° /6° 0 mm 0 cm
May 2 Sunny
Sunny
18° /6° 0 mm 0 cm
May 3 Sunny
Sunny
17° /6° 0.1 mm 0 cm
May 4 Sunny
Sunny
15° /5° 2.3 mm 0 cm
May 5 Patchy rain possible
Patchy rain possible
8° /2° 8.1 mm 1.5 cm
May 6 Sunny
Sunny
13° /0° 10.3 mm 3.2 cm
May 7 Sunny
Sunny
16° /3° 5 mm 0 cm
May 8 Partly cloudy
Partly cloudy
20° /5° 0 mm 0 cm
May 9 Patchy rain possible
Patchy rain possible
21° /8° 0 mm 0 cm
May 10 Sunny
Sunny
21° /8° 0 mm 0 cm
May 11 Patchy rain possible
Patchy rain possible
22° /9° 0.2 mm 0 cm
May 12 Patchy rain possible
Patchy rain possible
22° /9° 0.1 mm 0 cm
May 13 Patchy rain possible
Patchy rain possible
20° /8° 0 mm 0 cm
May 14 Sunny
Sunny
19° /6° 0.2 mm 0 cm
May 15 Sunny
Sunny
20° /7° 3.4 mm 0 cm
May 16 Sunny
Sunny
19° /7° 0.8 mm 0 cm
May 17 Partly cloudy
Partly cloudy
20° /8° 0 mm 0 cm
May 18 Overcast
Overcast
18° /6° 0 mm 0 cm
May 19 Sunny
Sunny
18° /5° 0 mm 0 cm
May 20 Sunny
Sunny
20° /5° 0 mm 0 cm
May 21 Sunny
Sunny
22° /8° 0 mm 0 cm
May 22 Sunny
Sunny
22° /8° 0 mm 0 cm
May 23 Sunny
Sunny
22° /8° 0 mm 0 cm
May 24 Cloudy
Cloudy
21° /8° 0 mm 0 cm
May 25 Sunny
Sunny
19° /8° 1.5 mm 0 cm
May 26 Sunny
Sunny
20° /8° 0 mm 0 cm
May 27 Sunny
Sunny
20° /9° 0 mm 0 cm
May 28 Partly cloudy
Partly cloudy
23° /10° 0 mm 0 cm
May 29 Sunny
Sunny
17° /5° 0 mm 0 cm
May 30 Sunny
Sunny
21° /5° 0 mm 0 cm
May 31 Sunny
Sunny
24° /9° 0 mm 0 cm
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Important Notice
Our weather forecast for Flagstaff 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 Flagstaff forecast closer to your planned date for the most up-to-date weather information.

Flagstaff in May - FAQ

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

Enjoy moderate daytime temperatures of up to 19° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Flagstaff during May?

In May, Flagstaff can expect light to moderate rainfall, totaling 30.5 mm across approximately 3 days. Occasional showers are possible, and planning ahead for them could be helpful.

Will it snow in Flagstaff in May 2026?

Flagstaff experiences an average snowfall of 4.73333 cm during May, occurring over 2 days.

What are the typical wind conditions in Flagstaff during May?

The average wind speed in Flagstaff during May is 24 km/h, suggesting breezy to windy conditions, depending on your activities.

Flagstaff snow forecast May 2026

Track daily snowfall levels and discover Flagstaff’s snowy potential this May ❄️
On average, Flagstaff sees 2 snowy days during May, with approximately 4.7 cm of total snowfall.

May rainfall patterns in Flagstaff

Explore the daily rainfall trends and prepare for Flagstaffs May weather 💧
Typically, Flagstaff has 3 rainy days in May with a total of 30.5 mm of rainfall.

UV exposure in Flagstaff during May

Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️

Quick links

More Flagstaff weather pages
Location coordinates Where is Flagstaff?

Get accurate weather forecasts for Flagstaff, located at latitude 35.198 and longitude -111.651. Stay updated with localized weather information tailored for Flagstaff.

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