Boise
May
Weather in Boise for May 2025
Your guide to Boise weather in May - trends and predictions
With an average of 2 snowy days, Boise usually enjoys a light touch of snow in May.
According to Boise snow forecast for May 2025, no snow is expected at the beginning of the month.The forecast for the first days of May 2025 in Boise predicts a temperature of 21.9 °F, which is cooler than the historical average.
In general, the average temperature in Boise at the beginning of May is 25 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.6 °F by the end of May.
Boise experiences moderate rainfall in May, with an average of 6 rainy days and a total precipitation of 54.7 mm.
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Snow Forecast ❄️
Temperatures
Rain 🌧️
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23
Dry days
6
Rainy days
2
Snow days
16°/7°
Temperatures
20 km/h
Avg max wind
51 %
Avg humidity
Boise Weather May
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  23° | 2 26° | 3 23° | ||||
| 4 25° | 5 29° | 6  27° | 7 22° | 8 20° | 9 16° | 10  18° |
| 11 21° | 12 23° | 13 22° | 14 18° | 15 20° | 16 25° | 17 16° |
| 18 17° | 19 12° | 20  16° | 21 16° | 22  14° | 23 13° | 24  19° |
| 25 17° | 26 17° | 27 23° | 28  25° | 29 15° | 30 14° | 31 19° |
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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 | UV | More |
|---|---|---|---|---|---|
| May 1 | Sunny | 23° /9° | 0 mm | 5 | |
| May 2 | Sunny | 26° /13° | 0 mm | 5 | |
| May 3 | Sunny | 23° /10° | 0 mm | 5 | |
| May 4 | Sunny | 25° /12° | 0 mm | 5 | |
| May 5 | Sunny | 29° /14° | 0 mm | 6 | |
| May 6 | Patchy rain possible | 27° /15° | 2.9 mm | 5 | |
| May 7 | Patchy rain possible | 22° /13° | 4.2 mm | 4 | |
| May 8 | Patchy rain possible | 20° /12° | 1.1 mm | 4 | |
| May 9 | Sunny | 16° /4° | 0 mm | 5 | |
| May 10 | Partly cloudy | 18° /11° | 0 mm | 5 | |
| May 11 | Sunny | 21° /12° | 0 mm | 6 | |
| May 12 | Sunny | 23° /14° | 0 mm | 6 | |
| May 13 | Partly cloudy | 22° /14° | 0 mm | 6 | |
| May 14 | Sunny | 18° /10° | 0 mm | 5 | |
| May 15 | Sunny | 20° /10° | 0 mm | 6 | |
| May 16 | Sunny | 25° /13° | 0 mm | 7 | |
| May 17 | Sunny | 16° /9° | 0 mm | 5 | |
| May 18 | Partly cloudy | 17° /5° | 0 mm | 5 | |
| May 19 | Sunny | 12° /5° | 0 mm | 4 | |
| May 20 | Thundery outbreaks possible | 16° /4° | 0 mm | 4 | |
| May 21 | Partly cloudy | 16° /5° | 1.5 mm | 5 | |
| May 22 | Moderate or heavy rain with thunder | 14° /5° | 16.8 mm | 3 | |
| May 23 | Patchy rain possible | 13° /3° | 0 mm | 3 | |
| May 24 | Overcast | 19° /8° | 0 mm | 4 | |
| May 25 | Patchy rain possible | 17° /8° | 1.4 mm | 4 | |
| May 26 | Sunny | 17° /6° | 0 mm | 5 | |
| May 27 | Overcast | 23° /11° | 0 mm | 5 | |
| May 28 | Patchy light rain with thunder | 25° /15° | 2.6 mm | 6 | |
| May 29 | Partly cloudy | 15° /10° | 0.8 mm | 5 | |
| May 30 | Sunny | 14° /5° | 0 mm | 4 | |
| May 31 | Sunny | 19° /9° | 0 mm | 5 | |
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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 16° 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 54.7 mm spread over approximately 6 days. Considering plans for rainy days is advisable.
Will it snow in Boise in May 2025?
Boise experiences an average snowfall of 1.89 cm during May, occurring over 2 days.
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 💧
UV exposure in Boise during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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