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Weather in Boise for May 2025

Your guide to Boise weather in May - trends and predictions
  • In general, the average temperature in Boise at the beginning of May is 11.7 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 18.6 °F by the end of May.

  • Boise sees moderate rainfall in May, averaging 7 rainy days.

  • With an average of 3 snowy days, Boise enjoys a light touch of snow in May.

  • New! Chat with our AI weatherman - it’s amazing and free.
Average dry days
21
Dry days
Average rainy days
7
Rainy days
Average snowy days
3
Snow days
Average temperatures
17°/7°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
51 %
Avg humidity

Boise in May average weather

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Temperatures trend during May in Boise

See the weather trend as well as the moving average line

May weather day by day

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Date Weather Temperatures Rain Snow More
May 1 Patchy rain possible
Patchy rain possible
11° /1° 0.4 mm 0.1 cm
May 2 Patchy light drizzle
Patchy light drizzle
13° /6° 0.3 mm 0 cm
May 3 Sunny
Sunny
16° /3° 0 mm 0 cm
May 4 Light drizzle
Light drizzle
18° /8° 4.6 mm 0 cm
May 5 Moderate or heavy snow showers
Moderate or heavy snow showers
7° /2° 17.4 mm 1 cm
May 6 Patchy light rain with thunder
Patchy light rain with thunder
8° /4° 6.8 mm 0 cm
May 7 Moderate or heavy snow showers
Moderate or heavy snow showers
9° /2° 2 mm 0.9 cm
May 8 Overcast
Overcast
12° /3° 0 mm 0 cm
May 9 Sunny
Sunny
16° /4° 0 mm 0 cm
May 10 Partly cloudy
Partly cloudy
18° /11° 0 mm 0 cm
May 11 Sunny
Sunny
21° /12° 0 mm 0 cm
May 12 Sunny
Sunny
23° /14° 0 mm 0 cm
May 13 Partly cloudy
Partly cloudy
22° /14° 0 mm 0 cm
May 14 Sunny
Sunny
18° /10° 0 mm 0 cm
May 15 Sunny
Sunny
20° /10° 0 mm 0 cm
May 16 Sunny
Sunny
25° /13° 0 mm 0 cm
May 17 Sunny
Sunny
16° /9° 0 mm 0 cm
May 18 Partly cloudy
Partly cloudy
17° /5° 0 mm 0 cm
May 19 Sunny
Sunny
12° /5° 0 mm 0 cm
May 20 Thundery outbreaks possible
Thundery outbreaks possible
16° /4° 0 mm 0 cm
May 21 Partly cloudy
Partly cloudy
16° /5° 1.5 mm 0 cm
May 22 Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
14° /5° 16.8 mm 0 cm
May 23 Patchy rain possible
Patchy rain possible
13° /3° 0 mm 0 cm
May 24 Overcast
Overcast
19° /8° 0 mm 0 cm
May 25 Patchy rain possible
Patchy rain possible
17° /8° 1.4 mm 0 cm
May 26 Sunny
Sunny
17° /6° 0 mm 0 cm
May 27 Overcast
Overcast
23° /11° 0 mm 0 cm
May 28 Patchy light rain with thunder
Patchy light rain with thunder
25° /15° 2.6 mm 0 cm
May 29 Partly cloudy
Partly cloudy
15° /10° 0.8 mm 0 cm
May 30 Sunny
Sunny
14° /5° 0 mm 0 cm
May 31 Sunny
Sunny
19° /9° 0 mm 0 cm
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Important Notice
Our weather forecast for Boise 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 Boise forecast closer to your planned date for the most up-to-date weather information.

Boise in May - FAQ

What are the expected maximum and minimum temperatures in Boise during May?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 7°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Boise during May?
Moderate rainfall is anticipated in Boise during May, with a total of 54.6 mm spread over approximately 7 days. Considering plans for rainy days is advisable.
Is snowfall common in Boise during May?
Boise experiences an average snowfall of 1.9 cm during May, occurring over 3 days, which may interest winter sports enthusiasts.
What are the typical wind conditions in Boise during May?
The average wind speed in Boise during May is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

May rainfall patterns in Boise

Explore the daily rainfall trends and prepare for Boises May weather 💧

May snowfall in Boise

Track daily snowfall levels and discover Boise’s snowy potential this May ❄️

UV exposure in Boise during May

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

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Location coordinates Where is Boise?

Get accurate weather forecasts for Boise, located at latitude 43.614 and longitude -116.203. Stay updated with localized weather information tailored for Boise.

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