Twin Falls weather in July

In July, Twin Falls sees average daytime highs of 91°F and overnight lows near 60°F, with 0.2 in of rain across 1.7 wet days and about 14.8 hours of daylight. It is the 1st-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 88°F in the first days to 92°F by the end. The sky is clear or mostly clear about 69% of the time in July, and the air most often feels dry.

Daylight stretches from about 15 h 06 min at the start of July to 14 h 24 min by month's end. Set against the rest of the year, July is Twin Falls's 1st-clearest and 10th-windiest month. For the whole year in context, see Twin Falls's year-round climate.

Daytime high
91°
1st warmest
Overnight low
60°
12th coldest
Rainfall
0.2 in
1.7 wet days
Daylight
14 h 48 min
5:18 AM – 8:09 PM
Cloud cover
28%
1st clearest
Wind
6 mph
10th windiest
Solar energy
7.98 kWh/m²
Travel score
4.6
out of 10

Twin Falls is city in and county seat of Twin Falls County, Idaho, United States.

Density
1,009/km²
people per km²
Founded
1904

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 88°F in the first days to 92°F by the end.

A typical July day in Twin Falls reaches about 91°F in the afternoon and slips back to 60°F overnight — a 31°F spread between the day's warmth and the night's chill. On most days the high lands between 82°F and 100°F. Set against its neighbours, July runs about 11°F warmer than June and about 2°F warmer than August.

40°60°80°100°151015202531
Avg high (°F)Avg low (°F)
18857
28858
38858
48958
58959
68959
79059
89059
99060
109160
119160
129160
139160
149161
159261
169261
179261
189261
199261
209262
219262
229262
239262
249262
259262
269262
279262
289262
299262
309262
319262

How July really feels in Twin Falls

Once humidity and wind are folded in, July averages 25 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
25
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

The story in July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Twin Falls weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan39° / 24°1.596.29.20.0
Feb44° / 27°1.17.44.210.30.8
Mar54° / 33°1.48.82.711.63.3
Apr61° / 38°1.48.21.413.15.3
May71° / 46°1.57.50.114.47.0
Jun81° / 53°0.84.2015.17.3
Jul91° / 60°0.21.7014.84.6
Aug89° / 59°0.31.9013.75.2
Sep78° / 50°0.62.8012.38.1
Oct64° / 40°0.94.60.410.86.6
Nov49° / 30°1.26.82.99.62.2
Dec38° / 24°1.68.86.28.90.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 69% of the time in July, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 16% of July, with mostly cloudy or overcast conditions the remaining 15%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18317
28317
38317
48515
58515
68515
78515
88515
98416
108416
118416
128515
138515
148515
158515
168515
178515
188515
198515
208614
218614
228614
238614
248515
258515
268515
278515
288416
298515
308515
318515

Chance of precipitation in July

Any precipitation

Twin Falls gets around 0.2 in of rain over 1.7 wet days in July, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 6% and peaks near 7% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
16
26
36
46
56
66
76
86
96
105
115
125
135
145
155
165
175
185
195
205
215
225
235
246
256
266
276
286
297
307
317

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
12991
13991
14991
15991
16991
17991
18991
19982
20982
21982
22982
23982
24982
25982
26982
27982
28982
29982
30982
31982

Wind in July

Winds average 6 mph in July.

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
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 July

DaylightNight

Daylight runs from about 15 h 06 min at the start of July to 14 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over July. Sunrise moves from 5:09 AM to 5:32 AM, and sunset from 8:14 PM to 7:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.15:098:14
215.15:098:14
315.15:108:14
415.15:108:13
515.05:118:13
615.05:118:13
715.05:128:13
815.05:128:12
915.05:138:12
1015.05:148:12
1114.95:158:11
1214.95:158:11
1314.95:168:10
1414.95:178:10
1514.95:188:09
1614.85:188:09
1714.85:198:08
1814.85:208:07
1914.85:218:06
2014.75:228:06
2114.75:238:05
2214.75:248:04
2314.65:258:03
2414.65:268:02
2514.65:268:02
2614.65:278:01
2714.55:288:00
2814.55:297:59
2914.55:307:58
3014.45:317:57
3114.45:327:55

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 7.98 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.85 kWh/m² to a high of 7.98 kWh/m² in July across the year — July's 7.98 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
18.2Intense
28.2Intense
38.2Intense
48.2Intense
58.2Intense
68.2Intense
78.1Intense
88.1Intense
98.1Intense
108.1Intense
118.1Intense
128.1Intense
138.1Intense
148.0Intense
158.0Intense
168.0Intense
178.0Intense
188.0Intense
197.9Intense
207.9Intense
217.9Intense
227.8Intense
237.8Intense
247.8Intense
257.8Intense
267.7Intense
277.7Intense
287.7Intense
297.6Intense
307.6Intense
317.5Intense
Planning a trip in July

Is July a good time to visit Twin Falls?

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

4.6
Sightseeing
7th-best month of the year
7.9
Beach & pool
2nd-best month of the year

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

What to pack for Twin Falls in July

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

In July, Twin Falls sees daytime highs around 91°F and nights near 60°F. Pack light clothes and sun protection.

light clothessun protection

UV index in Twin Falls 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 Twin Falls peaks around June 19 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJun 19UV 9Dec 13UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr5Moderate
May8Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov2Low
Dec2Low

Air quality in Twin Falls 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 Twin Falls is worst in August — around 19 µg/m³ PM2.5 (moderate), about 3.3× the cleanest month (December, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1918 µg/m³Dec 186 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar10Good
Apr9Good
May9Good
Jun8Good
Jul16Moderate
Aug19Moderate
Sep17Moderate
Oct8Good
Nov7Good
Dec6Good
Location & terrain

Where is Twin Falls?

Twin Falls sits at 42.6°N, 114.5°W, 3,734 ft above sea level, in United States. The nearest listed city is Pocatello, 104 mi away.

Topography around Twin Falls

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

Within 2 miles, the terrain around Twin Falls has only modest variations in elevation — a maximum elevation change of 220 ft around an average of 3,727 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,634 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 7,808 ft.

The land around Twin Falls is covered by artificial surfaces (52%) within 2 miles, cropland (57%) and grassland (30%) within 10 miles, and grassland (73%) and cropland (22%) within 50 miles.

2 miles
220 ft
10 miles
1,634 ft
50 miles
7,808 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Pocatello 104 mi · Boise 114 mi · Kuna 118 mi · Meridian 121 mi · Eagle 124 mi · Nampa 126 mi · Caldwell 135 mi · Elko 137 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 Twin Falls (42.563°, -114.4609°, elevation 3,734 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).