Lockport weather in June

In June, Lockport sees average daytime highs of 80°F and overnight lows near 62°F, with 4.3 in of rain across 11.7 wet days and about 15 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 76°F in the first days to 82°F by the end. The sky is clear or mostly clear about 31% of the time in June, and the air most often feels dry.

Daylight stretches from about 14 h 48 min at the start of June to 15 hours by month's end. Set against the rest of the year, June is Lockport's 5th-clearest and 9th-windiest month. For the whole year in context, see Lockport's year-round climate.

Daytime high
80°
3rd warmest
Overnight low
62°
10th coldest
Rainfall
4.3 in
11.7 wet days
Daylight
15 hours
4:23 AM – 7:22 PM
Cloud cover
60%
5th clearest
Wind
7 mph
9th windiest
Solar energy
6.4 kWh/m²
Travel score
6.3
out of 10

Lockport is city in Will County, Illinois, United States.

Density
845/km²
people per km²
Founded
1853

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

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 76°F in the first days to 82°F by the end.

A typical June day in Lockport reaches about 80°F in the afternoon and slips back to 62°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 70°F and 89°F. Set against its neighbours, June runs about 9°F warmer than May and about 3°F cooler than July.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
17557
27658
37658
47658
57759
67759
77759
87860
97860
107860
117961
127961
137962
148062
158062
168062
178063
188163
198163
208163
218164
228164
238264
248264
258264
268264
278264
288265
298265
308265

How June really feels in Lockport

Once humidity and wind are folded in, June 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

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

Lockport weather by month

How June compares with the rest of the year at a glance. June is the 3rd-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan32° / 18°2.38.65.59.30.0
Feb36° / 21°2.07.14.610.30.0
Mar47° / 31°2.810.22.811.71.6
Apr60° / 41°4.412.40.713.14.4
May70° / 52°4.612.5014.36.1
Jun80° / 62°4.311.70156.3
Jul83° / 66°3.711.4014.75.7
Aug81° / 64°3.710.2013.76.5
Sep75° / 56°2.98.3012.37.1
Oct62° / 44°3.29.20.110.95.5
Nov48° / 33°2.78.61.29.71.9
Dec37° / 24°2.28.33.890.0

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 17% of June, with mostly cloudy or overcast conditions the remaining 52%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14555
24555
34654
44654
54555
64555
74654
84654
94555
104555
114654
124654
134654
144654
154654
164654
174753
184753
194852
204852
214951
225050
235149
245248
255347
265347
275446
285446
295446
305545

Chance of precipitation in June

Any precipitation

Lockport gets around 4.3 in of rain over 11.7 wet days in June. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 39% and peaks near 40% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
140
240
340
440
540
640
740
840
940
1040
1139
1239
1340
1440
1540
1640
1740
1839
1939
2039
2138
2238
2338
2438
2538
2638
2739
2839
2939
3039

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the dry band about 29% of days. Sticky, muggy-or-worse air turns up on roughly 29% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1501917131
2492017141
3472017141
4462118151
5442118161
6422218161
7412218171
8392319182
9372319192
10352320202
11332320213
12312321223
13292321233
14282322244
15262322254
16252223255
17242223265
18222223276
19212223277
20212123277
21202123288
22192123289
23192123289
241821232810
251821232811
261721232811
271721232812
281621222812
291621222813
301521222813

Wind in June

Winds average 7 mph in June.

Across June, daily wind ranges from about 7 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
78light breeze
88light breeze
97light breeze
107light breeze
117light breeze
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in June

DaylightNight

Daylight runs from about 14 h 48 min at the start of June to 15 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over June. Sunrise moves from 4:26 AM to 4:26 AM, and sunset from 7:13 PM to 7:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
114.84:267:13
214.84:267:14
314.84:257:15
414.84:257:15
514.94:257:16
614.94:247:17
714.94:247:17
814.94:247:18
914.94:237:19
1014.94:237:19
1114.94:237:20
1215.04:237:20
1315.04:237:21
1415.04:237:21
1515.04:237:22
1615.04:237:22
1715.04:237:23
1815.04:237:23
1915.04:237:23
2015.04:237:24
2115.04:237:24
2215.04:237:24
2315.04:237:24
2415.04:247:25
2515.04:247:25
2615.04:247:25
2715.04:257:25
2815.04:257:25
2915.04:257:25
3015.04:267:25

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 6.4 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.67 kWh/m² to a high of 6.4 kWh/m² in June across the year — June's 6.4 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.2Intense
36.2Intense
46.2Intense
56.2Intense
66.2Intense
76.2Intense
86.3Intense
96.3Intense
106.3Intense
116.3Intense
126.3Intense
136.4Intense
146.4Intense
156.4Intense
166.4Intense
176.4Intense
186.4Intense
196.5Intense
206.5Intense
216.5Intense
226.5Intense
236.5Intense
246.5Intense
256.5Intense
266.5Intense
276.5Intense
286.5Intense
296.5Intense
306.5Intense
Planning a trip in June

Is June a good time to visit Lockport?

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

6.3
Sightseeing
3rd-best month of the year
6.2
Beach & pool
3rd-best month of the year

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

What to pack for Lockport in June

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

In June, Lockport sees daytime highs around 80°F and nights near 62°F. Pack sun protection. Worth having: light clothes and rain gear. About 12 days see rain.

sun protectionlight clothesrain gear

Sea temperature near Lockport in June

The nearest coast averages about 57°F in June — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 30 mi away) is warmest in August at about 73°F and coldest in February near 36°F.

It's comfortable for a long swim from Jul 13 to Sep 15 — about 2.1 months when the water holds above 68°F.

30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°F)Comfort
Jan38Bracing
Feb36Bracing
Mar36Bracing
Apr39Bracing
May45Bracing
Jun57Bracing
Jul70Refreshing
Aug73Refreshing
Sep68Refreshing
Oct58Bracing
Nov49Bracing
Dec42Bracing

UV index in Lockport in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June 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 Lockport peaks around June 22 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 22UV 9Dec 21UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May7Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov2Moderate
Dec2Low

Air quality in Lockport in June

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Lockport is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1418 µg/m³Oct 238 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar15Moderate
Apr15Moderate
May17Moderate
Jun17Moderate
Jul18Moderate
Aug16Moderate
Sep12Moderate
Oct8Good
Nov9Good
Dec10Good
Location & terrain

Where is Lockport?

Lockport sits at 41.6°N, 88.1°W, 594 ft above sea level, in United States. The nearest listed city is Crest Hill, 3.1 mi away.

Topography around Lockport

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

Within 2 miles, the terrain around Lockport has only modest variations in elevation — a maximum elevation change of 305 ft around an average of 630 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 427 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 751 ft.

The land around Lockport is covered by trees (34%), grassland (31%) and artificial surfaces (24%) within 2 miles, trees (30%), grassland (26%) and artificial surfaces (25%) within 10 miles, and cropland (47%) within 50 miles.

2 miles
305 ft
10 miles
427 ft
50 miles
751 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
June weather nearby: Crest Hill 3.1 mi · Romeoville 4.3 mi · Joliet 4.3 mi · Homer Glen 6.2 mi · Lemont 6.2 mi · Goodings Grove 6.8 mi · New Lenox 7.5 mi · Bolingbrook 7.5 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 Lockport (41.5895°, -88.0578°, elevation 594 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).