Billings weather in August

In August, Billings sees average daytime highs of 86°F and overnight lows near 58°F, with 0.7 in of rain across 3.9 wet days and about 13.9 hours of daylight. It is the 2nd-warmest and 12th-wettest month of the year here.

Highs ease over the month, from about 88°F in the first days to 83°F by the end. The sky is clear or mostly clear about 56% of the time in August, and the air most often feels dry.

Daylight stretches from about 14 h 36 min at the start of August to 13 h 12 min by month's end. Set against the rest of the year, August is Billings's 2nd-clearest and 11th-windiest month. For the whole year in context, see Billings's year-round climate.

Daytime high
86°
2nd warmest
Overnight low
58°
11th coldest
Rainfall
0.7 in
3.9 wet days
Daylight
14 hours
5:19 AM – 7:17 PM
Cloud cover
39%
2nd clearest
Wind
6 mph
11th windiest
Solar energy
6.42 kWh/m²
Travel score
6.1
out of 10

Billings is city in and county seat of Yellowstone County, Montana, United States.

Density
1,039/km²
people per km²
Founded
1877

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 88°F in the first days to 83°F by the end.

A typical August day in Billings reaches about 86°F in the afternoon and slips back to 58°F overnight — a 28°F spread between the day's warmth and the night's chill. On most days the high lands between 74°F and 95°F. Set against its neighbours, August runs on par with July and about 12°F warmer than September.

40°60°80°100°151015202531
Avg high (°F)Avg low (°F)
18860
28860
38860
48860
58860
68760
78760
88759
98759
108759
118759
128759
138658
148658
158658
168658
178658
188558
198558
208557
218557
228557
238557
248456
258456
268456
278356
288356
298355
308255
318255

How August really feels in Billings

Once humidity and wind are folded in, August 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

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Billings weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan35° / 18°0.95.75.88.90.0
Feb39° / 20°0.865.410.10.0
Mar49° / 27°1.27.14.311.62.1
Apr58° / 35°2.310.83.813.34.0
May67° / 45°2.610.70.614.76.0
Jun77° / 53°2.19015.56.9
Jul87° / 60°0.94.9015.25.5
Aug86° / 58°0.73.9013.96.1
Sep74° / 49°1.45.50.212.37.6
Oct59° / 38°1.87.22.210.75.0
Nov45° / 27°0.95.93.59.31.2
Dec36° / 20°0.85.45.28.50.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 56% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 24%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17921
27921
37921
47921
57921
67921
77822
87822
97822
107822
117723
127723
137723
147723
157723
167723
177624
187624
197624
207525
217525
227525
237426
247327
257327
267327
277228
287327
297327
307228
317129

Chance of precipitation in August

Any precipitation

Billings gets around 0.7 in of rain over 3.9 wet days in August, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 13% and peaks near 14% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
111
211
311
411
511
611
711
811
911
1011
1112
1212
1312
1413
1513
1613
1714
1814
1914
2014
2114
2214
2314
2414
2513
2613
2713
2813
2913
3013
3113

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the dry band about 96% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19361
29460
39460
49460
59550
69550
79550
89550
99640
109640
119640
129730
139730
149730
159730
169730
179730
189730
199730
209730
219730
229730
239730
249730
259730
269730
279730
289730
299730
309730
319730

Wind in August

Winds average 6 mph in August.

Across August, daily wind ranges from about 6 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 36 min at the start of August to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 84 minutes over August. Sunrise moves from 5:01 AM to 5:38 AM, and sunset from 7:39 PM to 6:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.65:017:39
214.65:027:38
314.65:037:37
414.55:047:35
514.55:067:34
614.45:077:32
714.45:087:31
814.35:097:29
914.35:117:28
1014.25:127:26
1114.25:137:25
1214.25:147:23
1314.15:167:22
1414.15:177:20
1514.05:187:19
1614.05:197:17
1713.95:217:15
1813.95:227:13
1913.85:237:12
2013.85:247:10
2113.75:267:08
2213.75:277:06
2313.65:287:05
2413.65:297:03
2513.55:317:01
2613.55:326:59
2713.45:336:57
2813.35:356:55
2913.35:366:54
3013.25:376:52
3113.25:386:50

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.42 kWh/m².

For context, solar energy here swings from a low near 1.63 kWh/m² to a high of 7.37 kWh/m² in July across the year — August's 6.42 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
17.0Intense
27.0Intense
36.9Intense
46.9Intense
56.8Intense
66.8Intense
76.8Intense
86.7Intense
96.7Intense
106.7Intense
116.6Intense
126.6Intense
136.6Intense
146.5Intense
156.5Intense
166.4Intense
176.4Intense
186.4Intense
196.3Intense
206.3Intense
216.2Intense
226.2Intense
236.2Intense
246.1Intense
256.0Intense
266.0Intense
276.0Bright
285.9Bright
295.8Bright
305.8Bright
315.7Bright
Planning a trip in August

Is August a good time to visit Billings?

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

6.1
Sightseeing
3rd-best month of the year
8.1
Beach & pool
1st-best month of the year

August is a reasonable time to visit Billings for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Billings in August

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

In August, Billings sees daytime highs around 86°F and nights near 58°F. Pack light clothes and sun protection. About 4 days see rain.

light clothessun protection

UV index in Billings in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Billings peaks around July 13 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 13UV 9Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr5Moderate
May6High
Jun9Very high
Jul9Very high
Aug7High
Sep5High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Billings in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Billings is worst in August — around 17 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 7 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModerateGoodAug 1817 µg/m³Dec 157 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar13Moderate
Apr11Good
May11Good
Jun12Good
Jul13Moderate
Aug17Moderate
Sep14Moderate
Oct8Good
Nov8Good
Dec7Good
Location & terrain

Where is Billings?

Billings sits at 45.8°N, 108.5°W, 3,123 ft above sea level, in United States. The nearest listed city is Sheridan, 101 mi away.

Topography around Billings

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Billings.

Within 2 miles, the terrain around Billings has only modest variations in elevation — a maximum elevation change of 551 ft around an average of 3,196 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,096 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 6,050 ft.

The land around Billings is covered by artificial surfaces (38%), trees (28%) and grassland (25%) within 2 miles, grassland (69%) within 10 miles, and grassland (81%) within 50 miles.

2 miles
551 ft
10 miles
1,096 ft
50 miles
6,050 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Sheridan 101 mi · Bozeman 122 mi · Great Falls 178 mi · Helena 178 mi · Gillette 179 mi · Butte 194 mi · Rexburg 211 mi · Casper 229 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 Billings (45.7833°, -108.5007°, elevation 3,123 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).