Boise (ID)
May
Weather in Boise, Idaho for May 2027
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.
In general, the average temperature in Boise at the beginning of May is 19.1 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 24 °C by the end of May.
Boise experiences moderate rainfall in May, with an average of 6 rainy days and a total precipitation of 46.4 mm.
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Snow Forecast ❄️
Temperatures
Rain 🌧️
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23
Dry days
6
Rainy days
2
Snow days
21°/8°
Temperatures
20 km/h
Avg max wind
47 %
Avg humidity
Boise Weather May
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Temperatures trend during May in Boise
See the weather trend as well as the moving average line
May weather in Boise day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| May 1 |  Patchy rain possible | 18° /3° | 0.1 mm | 0 cm | |
| May 2 |  Patchy light drizzle | 22° /7° | 0.1 mm | 0 cm | |
| May 3 |  Sunny | 21° /6° | 0 mm | 0 cm | |
| May 4 | Light drizzle | 19° /7° | 8.1 mm | 0 cm | |
| May 5 | Sunny | 18° /4° | 5.8 mm | 0.3 cm | |
| May 6 |  Patchy light rain with thunder | 17° /6° | 2.3 mm | 0 cm | |
| May 7 | Sunny | 19° /7° | 0.7 mm | 0.3 cm | |
| May 8 |  Overcast | 21° /7° | 0 mm | 0 cm | |
| May 9 | Sunny | 23° /7° | 0 mm | 0 cm | |
| May 10 |  Partly cloudy | 26° /11° | 0 mm | 0 cm | |
| May 11 | Sunny | 25° /11° | 0 mm | 0 cm | |
| May 12 | Sunny | 25° /11° | 0 mm | 0 cm | |
| May 13 | Partly cloudy | 21° /9° | 0.5 mm | 0 cm | |
| May 14 | Sunny | 19° /7° | 0 mm | 0 cm | |
| May 15 | Partly cloudy | 18° /7° | 0 mm | 0 cm | |
| May 16 | Overcast | 19° /9° | 0 mm | 0 cm | |
| May 17 | Sunny | 14° /6° | 9.8 mm | 0 cm | |
| May 18 | Partly cloudy | 15° /3° | 10.2 mm | 0 cm | |
| May 19 | Sunny | 17° /3° | 0 mm | 0 cm | |
| May 20 | Sunny | 19° /6° | 0 mm | 0 cm | |
| May 21 | Partly cloudy | 18° /5° | 0.7 mm | 0 cm | |
| May 22 |  Moderate or heavy rain with thunder | 21° /8° | 5.6 mm | 0 cm | |
| May 23 | Sunny | 22° /7° | 0 mm | 0 cm | |
| May 24 | Sunny | 25° /10° | 0 mm | 0 cm | |
| May 25 | Patchy rain possible | 25° /11° | 0.5 mm | 0 cm | |
| May 26 | Sunny | 21° /10° | 2.8 mm | 0 cm | |
| May 27 | Overcast | 24° /9° | 1.2 mm | 0 cm | |
| May 28 | Patchy light rain with thunder | 27° /13° | 0.9 mm | 0 cm | |
| May 29 | Partly cloudy | 23° /11° | 0.3 mm | 0 cm | |
| May 30 | Sunny | 22° /8° | 0 mm | 0 cm | |
| May 31 | Sunny | 26° /10° | 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.
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Boise in May - FAQ
What are the expected maximum and minimum temperatures in Boise during May?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Boise during May?
In May, Boise can expect light to moderate rainfall, totaling 46.4 mm across approximately 6 days. Occasional showers are possible, and planning ahead for them could be helpful.
Will it snow in Boise in May 2027?
Boise experiences an average snowfall of 0.63 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.
Boise snow forecast May 2027
Track daily snowfall levels and discover Boise’s snowy potential this May ❄️
On average, Boise sees 2 snowy days during May, with approximately 0.6 cm of total snowfall.
May rainfall patterns in Boise
Explore the daily rainfall trends and prepare for Boises May weather 💧
Typically, Boise has 6 rainy days in May with a total of 46.4 mm of rainfall.
UV exposure in Boise during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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