Boise weather in June: Boise, Idaho: normal highs, lows, rain and records for June
Boise in June has a normal high of 81°F and a normal low of 54°F, a daily mean of 68°F, rising from 77°F on the 1st to 87°F by the 30th. Measurable precipitation falls on 5 days in a normal June, 0.75 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 27°C and low of 12°C, 19 mm of precipitation in June.
- NOAA stationBoise Air Terminal
- Station IDUSW00024131
- Location43.57°N 116.24°W
- Elevation2,814 ft (858 m)
- From the center2 miles
- Population237,963
- Jan 39° 26°
- Feb 46° 29°
- Mar 56° 35°
- Apr 62° 40°
- May 72° 48°
- Jun 81° 54°
- Jul 93° 62°
- Aug 91° 61°
- Sep 80° 53°
- Oct 65° 42°
- Nov 49° 32°
- Dec 39° 25°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Boise in June?
The normal high is 81°F and the normal low 54°F, for a daily mean of 67.8°F. June is 7.9°F warmer than May and 9.5°F cooler than July. June is the 3rd warmest month of the year in Boise and the 9th wettest. Across the month the normal high rises 10°F, from 77°F on June 1 to 87°F on June 30. From one year to the next June's mean temperature typically moves about 2.8°F either way (NOAA's standard deviation), so roughly two Junes in three average between 65°F and 71°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 23%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| June 1 | 77°F | 51°F | 23% | 11% |
| June 8 | 79°F | 52°F | 21% | 9% |
| June 15 | 81°F | 54°F | 17% | 8% |
| June 22 | 84°F | 55°F | 14% | 6% |
| June 30 | 87°F | 58°F | 11% | 5% |
Every day of June: normal high, low and chance of precipitation (warmest afternoon June 30, coldest night June 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| June 1 | 77°F | 51°F | 23% | 11% | 15 h 10 min |
| June 2 | 77°F | 51°F | 23% | 10% | 15 h 10 min |
| June 3 | 77°F | 52°F | 23% | 10% | 15 h 10 min |
| June 4 | 77°F | 52°F | 22% | 10% | 15 h 10 min |
| June 5 | 78°F | 52°F | 22% | 10% | 15 h 20 min |
| June 6 | 78°F | 52°F | 21% | 10% | 15 h 20 min |
| June 7 | 78°F | 52°F | 21% | 9% | 15 h 20 min |
| June 8 | 79°F | 52°F | 21% | 9% | 15 h 20 min |
| June 9 | 79°F | 53°F | 20% | 9% | 15 h 20 min |
| June 10 | 79°F | 53°F | 20% | 9% | 15 h 20 min |
| June 11 | 79°F | 53°F | 19% | 9% | 15 h 20 min |
| June 12 | 80°F | 53°F | 19% | 8% | 15 h 20 min |
| June 13 | 80°F | 53°F | 18% | 8% | 15 h 20 min |
| June 14 | 81°F | 54°F | 18% | 8% | 15 h 20 min |
| June 15 | 81°F | 54°F | 17% | 8% | 15 h 20 min |
| June 16 | 81°F | 54°F | 17% | 8% | 15 h 20 min |
| June 17 | 82°F | 54°F | 16% | 7% | 15 h 30 min |
| June 18 | 82°F | 54°F | 16% | 7% | 15 h 30 min |
| June 19 | 82°F | 55°F | 16% | 7% | 15 h 30 min |
| June 20 | 83°F | 55°F | 15% | 7% | 15 h 30 min |
| June 21 | 83°F | 55°F | 15% | 6% | 15 h 30 min |
| June 22 | 84°F | 55°F | 14% | 6% | 15 h 30 min |
| June 23 | 84°F | 56°F | 14% | 6% | 15 h 30 min |
| June 24 | 85°F | 56°F | 14% | 6% | 15 h 30 min |
| June 25 | 85°F | 56°F | 13% | 6% | 15 h 30 min |
| June 26 | 86°F | 57°F | 13% | 5% | 15 h 30 min |
| June 27 | 86°F | 57°F | 12% | 5% | 15 h 30 min |
| June 28 | 86°F | 57°F | 12% | 5% | 15 h 20 min |
| June 29 | 87°F | 58°F | 12% | 5% | 15 h 20 min |
| June 30 | 87°F | 58°F | 11% | 5% | 15 h 20 min |
- Normal high
- 81°FJune average
- Normal low
- 54°FJune average
- Precipitation
- 0.75 inmonth total
- Days with precipitation
- 50.01 inch or more
- Days at 90°F or more
- 7
- Daylight
- 15 h 10 min to 15 h 20 minJune 1 to June 30
- Days at 70°F or more
- 26
- Days at 80°F or more
- 17
- Sunshine
- 86%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00024131; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Boise in June?
On a given June day the chance of 0.01 inch or more is 17% on average, highest around June 1 (23%). In all, 0.75 in falls on 5 days of a normal June.
In a normal June in Boise, 7 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024131.
How humid and windy is Boise in June?
At 3 p.m. the normal temperature is 86°F with 20% relative humidity and a dew point of 40°F; at 6 a.m. it is 60°F with 56% humidity. The wind averages 7.6 mph, most often from the northwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 60°F | 44°F | 56% | 5.2 mph | 89% |
| 9 a.m. | 71°F | 45°F | 40% | 6.5 mph | 90% |
| noon | 80°F | 44°F | 28% | 8.5 mph | 91% |
| 3 p.m. | 86°F | 40°F | 20% | 9.9 mph | 91% |
| 6 p.m. | 85°F | 39°F | 19% | 11.0 mph | 89% |
| 9 p.m. | 77°F | 42°F | 29% | 6.6 mph | 89% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024131. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for June in Boise?
The warmest June temperature on Boise's official record (since 1875) is 110°F, on June 28, 2015; the coldest is 30°F, on June 5, 1901. The wettest June brought 3.41 in (1884).
The June mean against the 1991-2020 normal of 67.8°F: 2021 75.9°F (+8.1), 2022 67.3°F (−0.5), 2023 68.8°F (+1.0), 2024 72.2°F (+4.4), 2025 70.5°F (+2.7), 2026 68.2°F (+0.4). 5 of 6 ran warmer than normal.
| June | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 75.9°F | +8.1°F | 0.71 in |
| 2022 | 67.3°F | −0.5°F | 1.03 in |
| 2023 | 68.8°F | +1.0°F | 0.97 in |
| 2024 | 72.2°F | +4.4°F | 0.50 in |
| 2025 | 70.5°F | +2.7°F | 0.15 in |
| 2026 | 68.2°F | +0.4°F | 0.70 in |
Source: records: ACIS, NWS threaded record BOIthr; recent months: ACIS, station USW00024131. Records and recent months use complete months only.
How does June in Boise compare across Idaho?
Across the 85 places PlainClimate covers in Idaho, June normal highs run from 58°F in Mullan to 88°F in Glenns Ferry; Boise's is 81°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.