Galesburg weather in June

In June, Galesburg sees average daytime highs of 80°F and overnight lows near 63°F, with 4.7 in of rain across 11.6 wet days and about 14.9 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 77°F in the first days to 83°F by the end. The sky is clear or mostly clear about 33% of the time in June, and the air most often feels muggy.

Daylight stretches from about 14 h 42 min at the start of June to 14 h 54 min by month's end. Set against the rest of the year, June is Galesburg's 5th-clearest and 10th-windiest month. For the whole year in context, see Galesburg's year-round climate.

Daytime high
80°
3rd warmest
Overnight low
63°
10th coldest
Rainfall
4.7 in
11.6 wet days
Daylight
14 h 54 min
4:34 AM – 7:29 PM
Cloud cover
57%
5th clearest
Wind
7 mph
10th windiest
Solar energy
6.41 kWh/m²
Travel score
6.2
out of 10

Galesburg is county seat of Knox County, Illinois, United States.

Density
674/km²
people per km²
Founded
1837

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 77°F in the first days to 83°F by the end.

A typical June day in Galesburg reaches about 80°F in the afternoon and slips back to 63°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 71°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)
17758
27759
37759
47860
57860
67860
77961
87961
97961
108062
118062
128062
138063
148163
158163
168163
178164
188264
198264
208264
218264
228265
238265
248265
258265
268265
278265
288365
298365
308365

How June really feels in Galesburg

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.

Galesburg weather by month

How June compares with the rest of the year at a glance. June is the 3rd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan32° / 17°2.07.85.29.40.0
Feb36° / 21°2.07.14.310.40.0
Mar49° / 31°2.910.12.211.71.9
Apr61° / 42°4.4120.713.14.7
May71° / 53°4.713.2014.36.1
Jun80° / 63°4.711.6014.96.2
Jul83° / 66°3.59.6014.65.8
Aug82° / 64°3.39.4013.66.5
Sep76° / 56°3.48.5012.37.2
Oct63° / 44°2.98.70.210.95.7
Nov48° / 33°2.67.71.29.72.0
Dec37° / 23°2.17.13.69.10.0

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% 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 50%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14654
24654
34753
44753
54753
64753
74753
84753
94753
104753
114852
124753
134852
144852
154753
164852
174951
184951
195050
205050
215248
225248
235347
245347
255446
265446
275545
285545
295644
305644

Chance of precipitation in June

Any precipitation

Galesburg gets around 4.7 in of rain over 11.6 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 41% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
141
240
340
440
539
639
739
839
939
1040
1140
1240
1340
1441
1541
1641
1741
1841
1941
2040
2139
2239
2338
2437
2537
2636
2735
2835
2934
3034

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the muggy band about 25% of days. Sticky, muggy-or-worse air turns up on roughly 33% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1452019151
2442019161
3432019162
4412119172
5402119182
6392219183
7372219193
8352219203
9332220214
10312220215
11292321225
12272321236
13262321246
14242222257
15222222268
16212223278
17192223289
18182123299
19172123299
201621233010
211521233010
221521233110
231421233111
241421233111
251321233112
261321233212
271221223113
281221223114
291220223114
301120223115

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
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light breeze
167light breeze
177light breeze
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in June

DaylightNight

Daylight runs from about 14 h 42 min at the start of June to 14 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over June. Sunrise moves from 4:38 AM to 4:37 AM, and sunset from 7:20 PM to 7:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
114.74:387:20
214.74:377:21
314.84:377:22
414.84:367:23
514.84:367:23
614.84:367:24
714.84:357:25
814.84:357:25
914.94:357:26
1014.94:357:27
1114.94:347:27
1214.94:347:28
1314.94:347:28
1414.94:347:29
1514.94:347:29
1614.94:347:29
1714.94:347:30
1814.94:347:30
1914.94:347:31
2014.94:347:31
2114.94:347:31
2214.94:357:31
2314.94:357:32
2414.94:357:32
2514.94:357:32
2614.94:367:32
2714.94:367:32
2814.94:367:32
2914.94:377:32
3014.94:377:32

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 6.41 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.75 kWh/m² to a high of 6.41 kWh/m² in June across the year — June's 6.41 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.0Intense
26.1Intense
36.1Intense
46.1Intense
56.2Intense
66.2Intense
76.2Intense
86.2Intense
96.3Intense
106.3Intense
116.3Intense
126.3Intense
136.4Intense
146.4Intense
156.4Intense
166.5Intense
176.5Intense
186.5Intense
196.5Intense
206.5Intense
216.5Intense
226.5Intense
236.5Intense
246.6Intense
256.6Intense
266.6Intense
276.6Intense
286.6Intense
296.6Intense
306.6Intense
Planning a trip in June

Is June a good time to visit Galesburg?

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

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

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

What to pack for Galesburg in June

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

In June, Galesburg sees daytime highs around 80°F and nights near 63°F. Pack sun protection. Worth having: light clothes and rain gear. About 12 days see rain.

sun protectionlight clothesrain gear

UV index in Galesburg 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 Galesburg peaks around June 19 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 19UV 9Dec 21UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep7High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Galesburg 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 Galesburg is worst in July — around 16 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodJul 1915 µg/m³Oct 228 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb13Moderate
Mar13Moderate
Apr11Good
May13Moderate
Jun13Moderate
Jul16Moderate
Aug15Moderate
Sep11Good
Oct8Good
Nov8Good
Dec9Good
Location & terrain

Where is Galesburg?

Galesburg sits at 40.9°N, 90.4°W, 771 ft above sea level, in United States. The nearest listed city is Macomb, 37 mi away.

Topography around Galesburg

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

Within 2 miles, the terrain around Galesburg has only modest variations in elevation — a maximum elevation change of 75 ft around an average of 778 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 259 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 528 ft.

The land around Galesburg is covered by artificial surfaces (31%), trees (26%) and grassland (22%) within 2 miles, cropland (67%) and trees (21%) within 10 miles, and cropland (68%) and trees (21%) within 50 miles.

2 miles
75 ft
10 miles
259 ft
50 miles
528 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
June weather nearby: Macomb 37 mi · East Moline 39 mi · Moline 39 mi · Burlington 40 mi · Rock Island 40 mi · Bettendorf 40 mi · Davenport 41 mi · North Peoria 44 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 Galesburg (40.9478°, -90.3712°, elevation 771 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).