Boise, ID weather in June
In June, Boise sees highs around 81°F and lows around 54°F: warm and mostly dry. Expect about 5 wet days. Great for outdoor plans.
- Normal high
- 81°F
- Normal low
- 54°F
- Wet days
- 5
- 0.8 in total
- Muggy days
- 0
- dew point 65°F+
How June changes from start to finish
| June 1 | June 30 | |
|---|---|---|
| Normal high | 77°F | 87°F |
| Normal low | 51°F | 58°F |
| Chance of a wet day | 22% | 12% |
| Sunrise / sunset | 6:06 am / 9:19 pm | 6:06 am / 9:30 pm |
| Daylight | 15.2 h | 15.4 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Mountain Time).
A typical June day
- 6 am56°Fdew point 42°F
- 9 am66°Fdew point 43°F
- Noon74°Fdew point 41°F
- 3 pm79°Fdew point 39°F
- 6 pm78°Fdew point 38°F
- 9 pm71°Fdew point 40°F
NOAA hourly normals (local standard time) from Boise Air Terminal (4 mi away); average wind 8 mph; clear or few clouds in 81% of daytime hours, mostly cloudy or overcast in 14%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F12 of 30
- Hot dayshigh 90°F or more7 of 30
- Muggy daysdaily mean dew point 65°F or more0 of 30
- Wet daysat least 0.01 in of rain or melted snow5 of 30
- Notable rainat least 0.10 in2 of 30
- Freezing nightslow 32°F or below0 of 30
- Snow on the groundsnow depth 1 in or more0 of 30
Average days per June, counted from daily records for each year 1991-2020.
Rain in June
Normal precipitation is 0.8 in; a dry June brings about 0.2 in and a wet one about 0.9 in (25th and 75th percentiles). Days with half an inch or more are rare.
How June varies from year to year
- Warmest June, 1991-20202015: average high 91°F
- Coolest June1993: average high 75°F
- Wettest June2020: 3.3 in
- Driest June2019: 0.04 in
- Highest reading110°F (June 28, 2015)
- Lowest reading31°F (June 7, 1995)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
June compared with May and July
| May | June | July | |
|---|---|---|---|
| Normal high | 72°F | 81°F | 93°F |
| Normal low | 48°F | 54°F | 62°F |
| Wet days | 8 | 5 | 2 |
| Comfortable days | 16 | 12 | 2 |
| Daylight | 14.7 h | 15.4 h | 15.1 h |
Highs change by +9°F from May and +12°F into July.
Nearby alternatives in June
- Cooler: Sun Valley, ID93 mi · high 70°F · 8 wet days
How Boise ranks in June
- Normal high219th warmest of 378 cities; 1st of 2 in Idaho
- Wet days94th driest of 378
- Comfortable days97th most of 340
What to pack for Boise in June
- Layers – afternoons near 81°F but nights near 54°F
- Sunglasses and sunscreen – about 15.4 hours of daylight and highs near 81°F
Heating and cooling
June has 61 heating degree days and 143 cooling degree days (base 65°F), 3% of the year's total heating and cooling demand.
Questions
How hot is Boise in June?
The normal high is 81°F and the normal low is 54°F. From 1991 to 2020 the hottest June reading was 110°F (June 28, 2015).
Does it rain a lot in Boise in June?
About 5 days in June have at least 0.01 in of precipitation, and the normal total is 0.8 in. The wettest June in 1991-2020 was in 2020 (3.3 in); the driest was in 2019 (0.04 in).
Is June a good time to visit Boise?
June ranks 2nd of 12 months on our comfort score for Boise (70 out of 100). It has about 12 comfortable days and about 7 days at 90°F or hotter. The best month is May.
Where the numbers come from
- Temperature, rain, snowfall, snow depth, frost dates, humidity and wind by hour and cloud cover: Boise Air Terminal (USW00024131), 3.7 mi SSW of the city center, 2,814 ft (114 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Boise Air Terminal/Gowen Fd Airport (726810-24131), 3.7 mi SSW of the city center, 2,823 ft (123 ft higher than the city). Hourly observations, 1991-2020.