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Shaded-relief map of Bolingbrook, Illinois: rivers, roads, the city limits and where the water drains.
ILLINOIS · WILL COUNTY

Bolingbrook

74,756 people, 700 ft above sea level in Will County.

700 ftElevation, city center
74,756People, 2024 estimate
25 sq miLand area
Clear 43°
Clear now Dew point 30° · W 6 mph · high 40°
City of Bolingbrook River Interstate 2 miles
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The Bolingbrook plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.

MILE1
TODAY

Today in Bolingbrook

NWS forecast and National Blend of Models · updated 5:00 PM CST
RIGHT NOW Lewis University Airport (KLOT) · 4:45 PM
Clear
43° Clear Feels like 39° · high of 40° near 5 PM
WindW 6 mphno gusts
Humidity61%rising to 100% by morning
Pressure30.27 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 30° · Dryabout the same for three days
DryComfortableStickyMuggyOppressive
NEXT RAIN
Clear
Not this weeknone in the forecast for a week
LIKELY AMOUNT—nothing expected
LAST RAINNov. 110.18 in · 3 dry days
ALERTS & OUTLOOKS
No watches or warnings for Will County
NWS Chicago and the Storm Prediction Center · checked 5:45 PM
SUN & MOON
↑ 6:40 AM4:33 PM ↓
9 h 53 m of daylight, 2 minutes less than yesterday
Waxing crescent, 26% lit. Next full moon: Nov. 24.
AIR & POLLEN
24
GOODAir quality index · fine particles
Tomorrow: None, moderate. No pollen source yet.

The next three days, hour by hour

Sky: clear, cloudy, night Rain likely National Blend of Models
SATURDAY, NOV. 14
SUNDAY, NOV. 15
MONDAY, NOV. 16
TUESDAY, NOV. 17
5p
8p
11p
2a
5a
8a
11a
2p
5p
8p
11p
2a
5a
8a
11a
2p
5p
8p
11p
2a
5a
8a
11a
2p
mostly clear night
mostly clear night
mostly clear night
mostly clear night
mostly clear night
mostly sunny
clear day
clear day
clear night
mostly clear night
mostly clear night
partly cloudy night
partly cloudy night
clear day
clear day
clear day
mostly clear night
mostly clear night
mostly clear night
mostly clear night
mostly clear night
mostly sunny
clear day
clear day
TEMPERATURE °F
40°
30°
49°
30°
50°
33°
CHANCE OF RAIN
50%
WIND, MPH
5
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HOW IT FEELS · DEW POINT
Dry: dew points 30 to 37°

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 50° / 32°
SAT Nov. 14 Mostly sunny Mostly sunny
40° 29°
0% rain — NW 4 A
SUN Nov. 15 Sunny; warmer Sunny; warmer
51° 29°
0% rain — NW 0 A
MON Nov. 16 Mostly sunny Mostly sunny
52° 33°
0% rain — SW 4 A
TUE Nov. 17 Sunny Sunny
55° 36°
0% rain — S 8 A
WED Nov. 18 Partly cloudy Partly cloudy
57° 45°
0% rain — S 12 A
THU Nov. 19 Mostly sunny Mostly sunny
61° 45°
20% rain — WSW 8 B
FRI Nov. 20 Partly cloudy Partly cloudy
61° 49°
10% rain — SSE 8 C
How sure are we? AModels agree: highs within 4° BSome spread: within 8° CWide spread: check back
Range from the National Blend of Models percentiles · graded on Forecast Scores
AIR MAIL

Where today’s air came from

The air arriving over Bolingbrook about 5,000 feet above the ground was over the open Pacific three days ago, and over the northern Plains a day ago, about 3,190 miles back along its path. It came down from about 13,700 feet up, warming and drying as it sank. Near the ground the air came from British Columbia; at 10,000 feet, from the northern Rockies. It feels dry all the same. Traced back 72 hours through NOAA’s hourly RAP analyses and the GFS beyond them, nine paths at each of three heights.

THIS WEEK, SEVEN YEARS AGO Nov. 12, 2019

The coldest this week has been

7° on Nov. 12, 2019, the coldest reading for this week of the year since 1992. Next is 11° in 2014.

11°
7°
20142019
Source: NOAA RCC-ACIS, the Romeoville Wfo record since 1992.
MILE2
THE GROUND

What Bolingbrook stands on

Bolingbrook’s center stands about 700 ft above sea level. Within three miles the land runs from 570 ft to 770 ft, a difference of 200 ft: gently rolling country.

Under the town center the state geologic map shows Silurian System undivided (dolostone, limestone), from the Silurian, 422 to 445 million years old.

Ridgewood to Glen Ellyn, cut in half

A section south to north, 24 miles through the town center
500 ft600 ft700 ft BOLINGBROOK700 ftFairmont630 ftDes Plaines Riverabout 560 ftLisle750 ftGlen Ellyn780 ft ← S · RidgewoodGlen Ellyn · N →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 62×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.

Rock at the surface along the line

Silurian System undivided

Dolostone, limestone. Age: Silurian, 422 to 445 million years old. About 24 mi of the line.

From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale.

Heights from Copernicus GLO-90 (a surface model: it includes buildings and tree canopy); summits from USGS GNIS; rivers from USGS NHDPlus HR; rock from the USGS State Geologic Map Compilation.

MILE3
THE WATER

Where Bolingbrook’s rain goes

A raindrop that lands in Bolingbrook reaches the Gulf of America by way of Lily Cache Creek, the Du Page, the Des Plaines, the Illinois and the Mississippi: about 1,500 river miles.

THE WAY DOWN, TO SCALE
Bolingbrook≈ 1,500 mi · the Gulf of America
FROM THE CENTER OF BOLINGBROOK ≈ 1,500 mi to the Gulf of America Lily Cache Creek → Du Page → Des Plaines → Illinois → Mississippi

Lake on the way: Peoria Lake.

1,190 miles of the trip are on the Mississippi.

Traced down the USGS NHDPlus V2.1 river network from the Census center point of Bolingbrook; river miles along the main stem, rounded.

MILE5
THE ALMANAC

Bolingbrook’s year

1991–2020 normals · records since 1992 · Romeoville Wfo, 7 mi south

Bolingbrook has a hot-summer humid continental climate. Summer afternoons average 85° in July; winter nights fall to about 16° in January. A normal year brings about 33 inches of snow; with the rain, that comes to about 41 inches of water.

32°16°36°20°49°30°61°40°72°50°81°60°85°65°83°63°76°55°64°43°49°32°37°22° JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 1234 TODAY BOLINGBROOK 41.1 in rain and snowmelt
Normal high to low, by month Record high to low, by day Rain by month Freezing
July, average85° / 65°high / low, the warmest month
January, average32° / 16°high / low, the coldest month
Rain and melted snow41.1 inwettest months: May and June
Snow a year33.2 insnowiest: January
Hottest on record102°FJuly 24, 2005
Coldest on record−24°FJanuary 31, 2019
Wettest day on record5.75 inJuly 17, 1996
Snowiest day on record13.8 inJanuary 2, 1999
90° days a year15very few reach 100°
Nights at or below 32°126and 44 days that stay below freezing
Climate typeHot-summer humid continentalKöppen Dfa

AROUND THE RING

1Freeze seasonfrom the first fall freeze, about Oct. 16, to the last in spring, about April 21 (median dates)
2Highs below freezingJan. 3 to Feb. 1; normal highs stay below 32°
3Lows below freezingNov. 14 to March 24; normal lows fall below 32°
4Wettest stretchMay through July: 14.0 of the year’s 41.1 inches
NOVEMBER 14 IN THE RECORD

On November 14 Bolingbrook normally reaches 50° and falls to 32°. The record high is 67°, in 2025; the record low 16°, in 2018. The most rain on this date, 0.30 in, fell in 2002.

MONTH BY MONTH
JanFebMarAprMayJunJulAugSepOctNovDec
Normal high32°36°49°61°72°81°85°83°76°64°49°37°
Normal low16°20°30°40°50°60°65°63°55°43°32°22°
Rain and melt, in2.191.982.714.114.814.684.504.363.313.672.672.15
Snow, inches10.68.74.20.90.00.00.00.00.00.11.27.5
Record high65° (2008)73° (2024)85° (2012)89° (2002)97° (2025)99° (2012)102° (2005)97° (2006)94° (2026)89° (2007)77° (2020)71° (2012)
Record low−24° (2019)−19° (1996)−13° (2002)16° (1994)26° (2005)38° (1993)48° (2001)47° (2009)29° (1995)20° (1992)6° (2015)−12° (2016)

Normals 1991–2020 and records since 1992 at Romeoville Wfo, 7 miles south. NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around Bolingbrook on the Forecast Network

Neighboring plates

Aurora IL · 11 MI 11 miles northwest Chicago IL · 24 MI 24 miles northeast Milwaukee WI · 95 MI 95 miles north Madison WI · 118 MI 118 miles northwest Fort Wayne IN · 159 MI 159 miles east Indianapolis IN · 167 MI 167 miles southeast
FORECASTCITY
Map of Bolingbrook, Illinois. Explore the plate
ILLINOIS · WILL

Bolingbrook

74,756 people, 700 ft above sea level in Will County.

700 ftElevation
74,756People
25 sq miLand
Clear 43°
ClearDew point 30°
1

Today in Bolingbrook

NEXT 15 HOURS
Now mostly clear night 40° 0%
8p mostly clear night 37° 0%
11p mostly clear night 33° 0%
2a mostly clear night 31° 0%
5a mostly clear night 30° 0%
8a mostly sunny 34° 0%
Clear
NEXT RAINNone this week
→
Sat0%
Mostly sunny Mostly sunny
29
40
A
Sun0%
Sunny; warmer Sunny; warmer
29
51
A
Mon0%
Mostly sunny Mostly sunny
33
52
A
Tue0%
Sunny Sunny
36
55
A
Wed0%
Partly cloudy Partly cloudy
45
57
A
Thu20%
Mostly sunny Mostly sunny
45
61
B
Fri10%
Partly cloudy Partly cloudy
49
61
C
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
THIS WEEK, SEVEN YEARS AGO · NOV. 12, 2019

7°, the coldest this week of the year has been since 1992.

2

What Bolingbrook stands on

Bolingbrook’s center stands about 700 ft above sea level. Within three miles the land runs from 570 ft to 770 ft, a difference of 200 ft: gently rolling country.

Bolingbrook, south to north Bolingbrook700 ftDes Plaines Riverabout 560 ft ← SN → 24 miles through the town center; vertical exaggeration about 117×. Colors: rock at the surface.
Elevation, center700 ft
Within 3 miles570 to 770 ft
Lie of the landGently rolling (200 ft of relief)
Rock at the surfaceSilurian System undivided
Its ageSilurian, 422 to 445 million years old
5

Bolingbrook’s year

Bolingbrook has a hot-summer humid continental climate. Summer afternoons average 85° in July; winter nights fall to about 16° in January. A normal year brings about 33 inches of snow; with the rain, that comes to about 41 inches of water.

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 1234 41.1 in
July, average85° / 65° · high / low, the warmest month
January, average32° / 16° · high / low, the coldest month
Rain and melted snow41.1 in · wettest months: May and June
Snow a year33.2 in · snowiest: January
Hottest on record102°F · July 24, 2005
Coldest on record−24°F · January 31, 2019
Wettest day on record5.75 in · July 17, 1996
Snowiest day on record13.8 in · January 2, 1999
90° days a year15 · very few reach 100°
Nights at or below 32°126 · and 44 days that stay below freezing
Climate typeHot-summer humid continental · Köppen Dfa
1Freeze season · from the first fall freeze, about Oct. 16, to the last in spring, about April 21 (median dates)
2Highs below freezing · Jan. 3 to Feb. 1; normal highs stay below 32°
3Lows below freezing · Nov. 14 to March 24; normal lows fall below 32°
4Wettest stretch · May through July: 14.0 of the year’s 41.1 inches
NOVEMBER 14 IN THE RECORD

On November 14 Bolingbrook normally reaches 50° and falls to 32°. The record high is 67°, in 2025; the record low 16°, in 2018. The most rain on this date, 0.30 in, fell in 2002.

Normals 1991–2020 and records since 1992 at Romeoville Wfo, 7 miles south. NOAA, through RCC-ACIS.
3

Where the rain goes

≈ 1,500 mito the Gulf of AmericaLily Cache Creek → Du Page → Des Plaines → Illinois → Mississippi

A raindrop that lands in Bolingbrook reaches the Gulf of America by way of Lily Cache Creek, the Du Page, the Des Plaines, the Illinois and the Mississippi: about 1,500 river miles.

Lake on the way: Peoria Lake.

1,190 miles of the trip are on the Mississippi.