Butte weather in July

In July, Butte sees average daytime highs of 76°F and overnight lows near 46°F, with 1.5 in of precipitation across 8.6 wet days and about 15.2 hours of daylight. It is the 1st-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 73°F in the first days to 78°F by the end. The sky is clear or mostly clear about 48% of the time in July, and the air most often feels dry.

Daylight stretches from about 15 h 30 min at the start of July to 14 h 42 min by month's end. Set against the rest of the year, July is Butte's 1st-clearest and 12th-windiest month. For the whole year in context, see Butte's year-round climate.

Daytime high
76°
1st warmest
Overnight low
46°
12th coldest
Precipitation
1.5 in
8.6 wet days
Daylight
15 h 12 min
4:59 AM – 8:12 PM
Cloud cover
42%
1st clearest
Wind
4 mph
12th windiest
Solar energy
7.42 kWh/m²
Travel score
7.3
out of 10

Butte is consolidated city-county (with Silver Bow County) in Montana, United States.

Density
18/km²
people per km²
Founded
1864

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 73°F in the first days to 78°F by the end.

A typical July day in Butte reaches about 76°F in the afternoon and slips back to 46°F overnight — a 30°F spread between the day's warmth and the night's chill. On most days the high lands between 66°F and 85°F. Set against its neighbours, July runs about 11°F warmer than June and on par with August.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
17244
27244
37344
47344
57345
67445
77445
87445
97545
107546
117546
127646
137646
147646
157646
167746
177747
187747
197747
207847
217847
227847
237847
247847
257847
267847
277847
287847
297847
307847
317847

How July really feels in Butte

Once humidity and wind are folded in, July averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

July 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 July compares with the rest of the year at a glance. July is the 1st-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan27° / 0.96.98.18.90.0
Feb30° / 11°0.96.98.1100.0
Mar38° / 17°1.49.89.411.60.0
Apr45° / 24°2.211.7913.31.0
May56° / 33°3.114.84.214.73.2
Jun65° / 40°3.313.81.315.55.3
Jul76° / 46°1.58.60.115.27.3
Aug76° / 45°1.170.1147.7
Sep65° / 38°1.46.6112.36.3
Oct49° / 28°1.38.24.510.72.3
Nov35° / 16°1.27.67.39.20.0
Dec26° / 1.07.48.68.50.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in July, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 25% of July, with mostly cloudy or overcast conditions the remaining 27%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26436
36535
46634
56733
66832
76931
86931
97030
107030
117228
127228
137327
147426
157525
167525
177525
187624
197624
207624
217624
227723
237723
247723
257723
267723
277723
287723
297624
307624
317624

Chance of precipitation in July

Any precipitation

Butte gets around 1.5 in of rain and snow over 8.6 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 28% and peaks near 36% on the wettest days, and about 0 day brings snow. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
235
335
435
534
634
733
833
932
1032
1131
1230
1329
1428
1528
1627
1727
1826
1926
2025
2125
2224
2324
2424
2524
2624
2724
2824
2924
3024
3124

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

Most of July feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, July lands in the dry band about 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
13991
14991
15991
16991
17991
18991
19991
20991
21991
22991
23991
24991
25991
26991
27991
28991
29991
30991
31991

Wind in July

Winds average 4 mph in July, the calmest month.

Across July, daily wind ranges from about 4 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 15 h 30 min at the start of July to 14 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over July. Sunrise moves from 4:48 AM to 5:15 AM, and sunset from 8:19 PM to 7:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.54:488:19
215.54:498:19
315.54:498:18
415.54:508:18
515.54:508:18
615.44:518:18
715.44:528:17
815.44:528:17
915.44:538:16
1015.44:548:16
1115.34:558:15
1215.34:568:15
1315.34:568:14
1415.34:578:14
1515.24:588:13
1615.24:598:12
1715.25:008:12
1815.25:018:11
1915.15:028:10
2015.15:038:09
2115.15:048:08
2215.05:058:07
2315.05:068:06
2415.05:078:05
2514.95:088:04
2614.95:108:03
2714.95:118:02
2814.85:128:01
2914.85:138:00
3014.75:147:58
3114.75:157:57

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 7.42 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.6 kWh/m² to a high of 7.42 kWh/m² in July across the year — July's 7.42 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.4Intense
27.4Intense
37.4Intense
47.4Intense
57.5Intense
67.5Intense
77.5Intense
87.5Intense
97.5Intense
107.5Intense
117.5Intense
127.5Intense
137.5Intense
147.5Intense
157.5Intense
167.5Intense
177.5Intense
187.4Intense
197.4Intense
207.4Intense
217.4Intense
227.4Intense
237.3Intense
247.3Intense
257.3Intense
267.3Intense
277.2Intense
287.2Intense
297.2Intense
307.1Intense
317.1Intense
Planning a trip in July

Is July a good time to visit Butte?

Our two travel scores rate July for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.3
Sightseeing
2nd-best month of the year
6.3
Beach & pool
2nd-best month of the year

July is one of the better times to visit Butte for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Butte in July

From July's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In July, Butte sees daytime highs around 76°F and nights near 46°F. Pack sun protection. Worth having: light clothes, a warm layer and rain gear. About 9 days see rain.

sun protectionlight clothesa warm layerrain gear

UV index in Butte in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 9 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 14UV 9Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar5Moderate
Apr5Moderate
May7Very high
Jun8Very high
Jul9Very high
Aug7High
Sep5High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Butte in July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July 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).

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1329 µg/m³Jan 196 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb7Good
Mar10Good
Apr10Good
May10Good
Jun9Good
Jul16Moderate
Aug21Moderate
Sep30Moderate
Oct9Good
Nov7Good
Dec8Good
Location & terrain

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.

2 miles
1,060 ft
10 miles
3,494 ft
50 miles
7,228 ft
treesgrasslandcroplandartificial surfacesbare terrainwatermoss and lichen
July weather nearby: Helena 47 mi · Bozeman 75 mi · Missoula 92 mi · Great Falls 119 mi · Rexburg 155 mi · Kalispell 173 mi · Idaho Falls 177 mi · Whitefish 186 mi

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
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).