Butte in Summer
In summer (June, July and August), Butte sees average daytime highs around 72°F and overnight lows near 44°F, with 5.9 in of precipitation over about 29 wet days across the season. It is the warmest season of the year and the 2nd-wettest season.
Over the season highs climb from about 61°F in early June to 73°F by late August. The sky is clear or mostly clear about 39% of the time across summer, and the air most often feels dry.
Summer is Butte's best season of the year to visit on our travel score. For the whole year in context, see Butte's year-round climate.
- Avg daytime high
- 72°F
- warmest season of the year
- Avg overnight low
- 44°F
- Precipitation
- 5.9 in
- 29 wet days
- Avg wind
- 5 mph
- Travel score
- 6.8
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Butte in Summer
Over the season highs climb from about 61°F in early June to 73°F by late August.
A typical summer day in Butte reaches about 72°F and drops to 44°F overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Butte
Once humidity and wind are folded in, summer brings about 0 days that feel above 90°F and 0 that feel at or below 32°F.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Butte weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 27° / 9° | 0.9 | 6.9 | 8.1 | 8.9 | 0.0 |
| Feb | 30° / 11° | 0.9 | 6.9 | 8.1 | 10 | 0.0 |
| Mar | 38° / 17° | 1.4 | 9.8 | 9.4 | 11.6 | 0.0 |
| Apr | 45° / 24° | 2.2 | 11.7 | 9 | 13.3 | 1.0 |
| May | 56° / 33° | 3.1 | 14.8 | 4.2 | 14.7 | 3.2 |
| Jun | 65° / 40° | 3.3 | 13.8 | 1.3 | 15.5 | 5.3 |
| Jul | 76° / 46° | 1.5 | 8.6 | 0.1 | 15.2 | 7.3 |
| Aug | 76° / 45° | 1.1 | 7 | 0.1 | 14 | 7.7 |
| Sep | 65° / 38° | 1.4 | 6.6 | 1 | 12.3 | 6.3 |
| Oct | 49° / 28° | 1.3 | 8.2 | 4.5 | 10.7 | 2.3 |
| Nov | 35° / 16° | 1.2 | 7.6 | 7.3 | 9.2 | 0.0 |
| Dec | 26° / 7° | 1.0 | 7.4 | 8.6 | 8.5 | 0.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 39% of the time across summer.
Chance of precipitation in Summer
Butte gets around 5.9 in of rain and snow over 29 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 5 mph across summer.
Sunrise & sunset in Summer
Daylight runs from about 15 h 18 min in early June to 13 h 12 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 6.9 kWh/m².
Is summer a good time to visit Butte?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Butte for sightseeing.
What to pack for Butte in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Butte sees daytime highs around 72°F and nights near 44°F. Pack rain gear and sun protection. Worth having: light clothes and a warm layer. About 29 days see rain.
UV index in Butte in Summer
Clear-sky midday UV across summer averages around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Butte peaks around July 14 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 5 | 5 | 7 | 8 | 9 | 7 | 5 | 4 | 2 | 1 |
| Level | Low | Moderate | Moderate | Moderate | Very high | Very high | Very high | High | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Moderate |
| Mar | 5 | Moderate |
| Apr | 5 | Moderate |
| May | 7 | Very high |
| Jun | 8 | Very high |
| Jul | 9 | Very high |
| Aug | 7 | High |
| Sep | 5 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Air quality in Butte in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Butte is worst in September — around 30 µg/m³ PM2.5 (moderate), about 4.8× the cleanest month (January, 6 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 6 | 7 | 10 | 10 | 10 | 9 | 16 | 21 | 30 | 9 | 7 | 8 |
| Level | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 6 | Good |
| Feb | 7 | Good |
| Mar | 10 | Good |
| Apr | 10 | Good |
| May | 10 | Good |
| Jun | 9 | Good |
| Jul | 16 | Moderate |
| Aug | 21 | Moderate |
| Sep | 30 | Moderate |
| Oct | 9 | Good |
| Nov | 7 | Good |
| Dec | 8 | Good |
Where is Butte?
Butte sits at 46.0°N, 112.5°W, 5,538 ft above sea level, in United States. The nearest listed city is Helena, 47 mi away.
Topography around Butte
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Butte.
Within 2 miles, the terrain around Butte has significant variations in elevation — a maximum elevation change of 1,060 ft around an average of 5,617 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,494 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 7,228 ft.
The land around Butte is covered by artificial surfaces (40%) and grassland (36%) within 2 miles, trees (49%) and grassland (43%) within 10 miles, and trees (48%) and grassland (46%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Butte (46.0038°, -112.5347°, elevation 5,538 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.