Rapid City weather in July

In July, Rapid City sees average daytime highs of 82°F and overnight lows near 58°F, with 3.1 in of rain across 13.4 wet days and about 15 hours of daylight. It is the 1st-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 82°F through the month. The sky is clear or mostly clear about 47% of the time in July, and the air most often feels dry.

Daylight stretches from about 15 h 18 min at the start of July to 14 h 30 min by month's end. Set against the rest of the year, July is Rapid City's 3rd-clearest and 12th-windiest month. For the whole year in context, see Rapid City's year-round climate.

Daytime high
82°
1st warmest
Overnight low
58°
12th coldest
Rainfall
3.1 in
13.4 wet days
Daylight
15 hours
4:29 AM – 7:28 PM
Cloud cover
45%
3rd clearest
Wind
7 mph
12th windiest
Solar energy
6.88 kWh/m²
Travel score
5.9
out of 10

Rapid City is seat of Pennington County, South Dakota, United States.

Density
521/km²
people per km²
Founded
1876

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 82°F through the month.

A typical July day in Rapid City reaches about 82°F in the afternoon and slips back to 58°F overnight — a 24°F spread between the day's warmth and the night's chill. On most days the high lands between 72°F and 92°F. Set against its neighbours, July runs about 8°F warmer than June and on par with August.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
18056
28057
38057
48057
58157
68158
78158
88258
98258
108258
118258
128259
138259
148359
158359
168359
178359
188359
198359
208359
218359
228359
238359
248359
258359
268359
278259
288259
298259
308258
318258

How July really feels in Rapid City

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.

Rapid City 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
Jan36° / 17°0.53.93.99.10.0
Feb38° / 18°0.755.110.20.0
Mar46° / 25°1.67.65.411.61.4
Apr54° / 32°3.211.85.513.23.1
May64° / 42°4.414.11.214.55.0
Jun74° / 52°3.814.50.115.26.1
Jul82° / 58°3.113.40155.9
Aug81° / 56°2.410.9013.86.7
Sep72° / 47°1.66.70.412.37.4
Oct58° / 36°2.07.32.710.84.7
Nov46° / 25°0.84.43.89.41.3
Dec37° / 18°0.63.63.98.80.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 25% of July, with mostly cloudy or overcast conditions the remaining 27%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17030
27030
37129
47129
57129
67129
77228
87228
97228
107426
117426
127525
137525
147525
157525
167525
177525
187525
197525
207525
217426
227327
237327
247228
257228
267228
277030
287030
297030
307030
317030

Chance of precipitation in July

Any precipitation

Rapid City gets around 3.1 in of rain over 13.4 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 43% and peaks near 45% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
144
244
345
445
545
645
745
844
944
1044
1143
1243
1342
1442
1542
1641
1741
1841
1941
2041
2142
2242
2342
2442
2543
2643
2743
2843
2944
3044
3144

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 55% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
1622810
2622810
3602911
4602911
5592912
6592912
7582913
8582913
9582913
10572914
11572914
12572914
13553015
14553015
15553015
16553015
17543115
18543115
19533215
20533215
21533314
22533314
23523414
24523414
25513514
26513514
27513514
28503614
29513613
30513613
31503713

Wind in July

Winds average 7 mph in July, the calmest month.

Across July, daily wind ranges from about 6 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 15 h 18 min at the start of July to 14 h 30 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 4:18 AM to 4:43 AM, and sunset from 7:34 PM to 7:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.34:187:34
215.34:197:34
315.24:197:34
415.24:207:34
515.24:207:34
615.24:217:33
715.24:227:33
815.24:227:33
915.24:237:32
1015.14:247:32
1115.14:257:31
1215.14:257:31
1315.14:267:30
1415.04:277:30
1515.04:287:29
1615.04:297:28
1715.04:297:28
1814.94:307:27
1914.94:317:26
2014.94:327:26
2114.94:337:25
2214.84:347:24
2314.84:357:23
2414.84:367:22
2514.74:377:21
2614.74:387:20
2714.74:397:19
2814.64:407:18
2914.64:417:17
3014.64:427:16
3114.54:437:15

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.88 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.91 kWh/m² to a high of 6.88 kWh/m² in July across the year — July's 6.88 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.1Intense
27.1Intense
37.1Intense
47.0Intense
57.0Intense
67.0Intense
77.0Intense
87.0Intense
97.0Intense
107.0Intense
117.0Intense
127.0Intense
137.0Intense
147.0Intense
157.0Intense
166.9Intense
176.9Intense
186.9Intense
196.9Intense
206.8Intense
216.8Intense
226.8Intense
236.8Intense
246.7Intense
256.7Intense
266.7Intense
276.6Intense
286.6Intense
296.6Intense
306.5Intense
316.5Intense
Planning a trip in July

Hazard calendar for Rapid City

In seasonPeak

In July, Rapid City sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Rapid City's rainy season runs April–August, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is July a good time to visit Rapid City?

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

5.9
Sightseeing
4th-best month of the year
6.5
Beach & pool
2nd-best month of the year

July is a reasonable time to visit Rapid City for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Rapid City in July

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

In July, Rapid City sees daytime highs around 82°F and nights near 58°F. Pack light clothes and sun protection. Worth having: rain gear. About 13 days see rain.

light clothessun protectionrain gear

UV index in Rapid City in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks 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 Rapid City peaks around June 20 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 highHighModerateLowJun 20UV 9Dec 20UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr5High
May7High
Jun9Very high
Jul8Very high
Aug6High
Sep6High
Oct4Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Rapid City?

Rapid City sits at 44.1°N, 103.2°W, 3,241 ft above sea level, in United States. The nearest listed city is Gillette, 114 mi away.

Topography around Rapid City

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

Within 2 miles, the terrain around Rapid City has only modest variations in elevation — a maximum elevation change of 719 ft around an average of 3,340 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,008 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 5,108 ft.

The land around Rapid City is covered by artificial surfaces (49%) and grassland (33%) within 2 miles, grassland (64%) and trees (24%) within 10 miles, and grassland (69%) and trees (22%) within 50 miles.

2 miles
719 ft
10 miles
2,008 ft
50 miles
5,108 ft
treesgrasslandcroplandartificial surfacesbare terrain
July weather nearby: Gillette 114 mi · Casper 176 mi · Sheridan 190 mi · Dickinson 194 mi · Cheyenne 219 mi · Mandan 221 mi · Bismarck 222 mi · Laramie 226 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 Rapid City (44.0805°, -103.231°, elevation 3,241 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).