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

Lostant

430 people, 710 ft above sea level in LaSalle County.

710 ftElevation, city center
430People, 2024 estimate
1 sq miLand area
Clear 38°
Clear now Dew point 29° · WNW 5 mph · high 37°
City of Lostant River Interstate 2 miles
Explore the plate Order a print

The Lostant 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 Lostant

NWS forecast and National Blend of Models · updated 5:00 PM CST
RIGHT NOW Pontiac Municipal Airport (KPNT) · 5:35 PM
Clear
38° Clear Feels like 35° · high of 37° near 5 PM
WindWNW 5 mphno gusts
Humidity70%rising to 100% by morning
Pressure30.30 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 29° · Dry38° by Tuesday: more humid
DryComfortableStickyMuggyOppressive
NEXT RAIN
Clear
Not this weeknone in the forecast for a week
LIKELY AMOUNT—nothing expected
LAST RAIN—none in 31 days
ALERTS & OUTLOOKS
No watches or warnings for LaSalle County
NWS Chicago and the Storm Prediction Center · checked 5:45 PM
SUN & MOON
↑ 6:42 AM4:38 PM ↓
9 h 55 m of daylight, 2 minutes less than yesterday
Waxing crescent, 26% lit. Next full moon: Nov. 24.
AIR & POLLEN
16
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
clear night
clear night
mostly clear night
mostly clear night
mostly clear night
mostly sunny
mostly sunny
clear day
clear night
clear night
clear night
mostly clear night
mostly clear night
clear day
clear day
mostly sunny
mostly clear night
mostly clear night
mostly clear night
clear night
clear night
mostly sunny
clear day
clear day
TEMPERATURE °F
37°
26°
47°
27°
50°
31°
CHANCE OF RAIN
50%
WIND, MPH
3
1
0
0
0
0
0
0
0
0
0
0
0
0
5
3
2
2
3
3
3
5
8
7
HOW IT FEELS · DEW POINT
Dry: dew points 26 to 38°

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 80° / 62°
SAT Nov. 14 Sunny Sunny
37° 24°
0% rain — NW 2 A
SUN Nov. 15 Mostly sunny; warmer Mostly sunny; warmer
52° 25°
0% rain — WNW 0 A
MON Nov. 16 Sunny Sunny
55° 29°
0% rain — SW 2 A
TUE Nov. 17 Sunny Sunny
57° 33°
0% rain — S 5 A
WED Nov. 18 Mostly sunny Mostly sunny
60° 42°
0% rain — S 10 B
THU Nov. 19 Mostly sunny Mostly sunny
63° 43°
10% rain — WSW 6 B
FRI Nov. 20 Partly cloudy Partly cloudy
64° 47°
10% rain — SSE 6 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 Lostant about 5,000 feet above the ground was over British Columbia three days ago, and over the central Plains a day ago, about 2,090 miles back along its path. It came down from about 9,600 feet up, warming and drying as it sank. Near the ground the air came from British Columbia; at 10,000 feet, from the Pacific off the Northwest. It has stayed over land, which is why it feels dry. Traced back 72 hours through NOAA’s hourly RAP analyses and the GFS beyond them, nine paths at each of three heights.

THIS WEEK IN 1959 Nov. 17, 1959

The coldest this week has been

1° on Nov. 17, 1959, the coldest reading for this week of the year since 1901. Next is 4° in 2019.

4°
1°
20191959
Source: NOAA RCC-ACIS, the Peru record since 1901.
MILE2
THE GROUND

What Lostant stands on

Lostant’s center stands about 710 ft above sea level. Within three miles the land runs from 660 ft to 730 ft, a difference of 70 ft: gently rolling country.

Under the town center the state geologic map shows Mattoon Formation (shale), from the Late Pennsylvanian, 304 to 307 million years old.

The section below crosses 3 rock units mapped at the surface.

Rutland to Oglesby, cut in half

A section south to north, 24 miles through the town center
500 ft600 ft700 ft LOSTANT710 ftHigh point of the line740 ftWenona680 ftTonica660 ftOglesby640 ft ← S · RutlandOglesby · N →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 64×. 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

Mattoon Formation

Shale. Age: Late Pennsylvanian, 304 to 307 million years old. About 17 mi of the line.

Bond Formation

Shale, sandstone, limestone. Age: Late Pennsylvanian, 304 to 307 million years old. About 5 mi of the line.

Shelburn-Patoka Formations undivided

Shale, limestone. Age: Late Pennsylvanian, 304 to 307 million years old. About 2 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 Lostant’s rain goes

A raindrop that lands in Lostant reaches the Gulf of America by way of Little Sandy Creek, Sandy Creek, the Illinois and the Mississippi: about 1,410 river miles.

THE WAY DOWN, TO SCALE
Lostant≈ 1,410 mi · the Gulf of America
FROM THE CENTER OF LOSTANT ≈ 1,410 mi to the Gulf of America Little Sandy Creek → Sandy Creek → 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 Lostant; river miles along the main stem, rounded.

MILE5
THE ALMANAC

Lostant’s year

1991–2020 normals · records since 1901 · Peru, 15 mi north

Lostant has a hot-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 14° in January. A normal year brings about 28 inches of snow; with the rain, that comes to about 38 inches of water.

30°14°35°18°48°27°61°38°73°49°81°59°84°63°82°61°77°53°64°41°48°30°35°20° JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 1234 TODAY LOSTANT 38.0 in rain and snowmelt
Normal high to low, by month Record high to low, by day Rain by month Freezing
July, average84° / 63°high / low, the warmest month
January, average30° / 14°high / low, the coldest month
Rain and melted snow38.0 inwettest months: June and May
Snow a year28.5 insnowiest: December
Hottest on record113°FJuly 14, 1936
Coldest on record−26°FJanuary 19, 1985
Wettest day on record5.49 inJuly 14, 1958
Snowiest day on record17.0 inDecember 1, 2006
90° days a year19very few reach 100°
Nights at or below 32°139and 46 days that stay below freezing
Climate typeHot-summer humid continentalKöppen Dfa

AROUND THE RING

1Freeze seasonfrom the first fall freeze, about Oct. 12, to the last in spring, about April 22 (median dates)
2Highs below freezingDec. 26 to Feb. 9; normal highs stay below 32°
3Lows below freezingNov. 9 to April 1; normal lows fall below 32°
4Wettest stretchMay through July: 13.0 of the year’s 38.0 inches
NOVEMBER 14 IN THE RECORD

On November 14 Lostant normally reaches 49° and falls to 30°. The record high is 76°, in 1989; the record low 6°, in 1986. The most rain on this date, 2.04 in, fell in 1926.

MONTH BY MONTH
JanFebMarAprMayJunJulAugSepOctNovDec
Normal high30°35°48°61°73°81°84°82°77°64°48°35°
Normal low14°18°27°38°49°59°63°61°53°41°30°20°
Rain and melt, in1.811.772.283.774.494.623.893.703.413.502.712.10
Snow, inches8.65.54.00.60.00.00.00.00.00.20.98.7
Record high68° (1950)76° (2024)84° (2012)94° (1930)105° (1934)107° (1934)113° (1936)106° (1936)103° (1953)93° (1953)82° (1950)70° (2012)
Record low−26° (1985)−24° (1905)−11° (1943)13° (1982)25° (1989)37° (1969)42° (1972)37° (1915)25° (1942)14° (1925)−5° (1977)−21° (1989)

Normals 1991–2020 and records since 1901 at Peru, 14 miles north. NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around Lostant on the Forecast Network

Neighboring plates

Peoria IL · 39 MI 39 miles southwest East Peoria IL · 40 MI 40 miles southwest Aurora IL · 60 MI 60 miles northeast Chicago IL · 87 MI 87 miles northeast Madison WI · 137 MI 137 miles north Indianapolis IN · 180 MI 180 miles southeast
FORECASTCITY
Map of Lostant, Illinois. Explore the plate
ILLINOIS · LASALLE

Lostant

430 people, 710 ft above sea level in LaSalle County.

710 ftElevation
430People
1 sq miLand
Clear 38°
ClearDew point 29°
1

Today in Lostant

NEXT 15 HOURS
Now clear night 37° 0%
8p clear night 32° 0%
11p clear night 29° 0%
2a mostly clear night 27° 0%
5a partly cloudy night 26° 0%
8a partly cloudy day 31° 0%
Clear
NEXT RAINNone this week
→
Sat0%
Sunny Sunny
24
37
A
Sun0%
Mostly sunny; warmer Mostly sunny; warmer
25
52
A
Mon0%
Sunny Sunny
29
55
A
Tue0%
Sunny Sunny
33
57
A
Wed0%
Mostly sunny Mostly sunny
42
60
B
Thu10%
Mostly sunny Mostly sunny
43
63
B
Fri10%
Partly cloudy Partly cloudy
47
64
C
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
THIS WEEK IN 1959 · NOV. 17, 1959

1°, the coldest this week of the year has been since 1901.

2

What Lostant stands on

Lostant’s center stands about 710 ft above sea level. Within three miles the land runs from 660 ft to 730 ft, a difference of 70 ft: gently rolling country.

Lostant, south to north Lostant710 ftHigh point740 ft ← SN → 24 miles through the town center; vertical exaggeration about 122×. Colors: rock at the surface.
Elevation, center710 ft
Within 3 miles660 to 730 ft
Lie of the landGently rolling (70 ft of relief)
Rock at the surfaceMattoon Formation
Its ageLate Pennsylvanian, 304 to 307 million years old
5

Lostant’s year

Lostant has a hot-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 14° in January. A normal year brings about 28 inches of snow; with the rain, that comes to about 38 inches of water.

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 1234 38.0 in
July, average84° / 63° · high / low, the warmest month
January, average30° / 14° · high / low, the coldest month
Rain and melted snow38.0 in · wettest months: June and May
Snow a year28.5 in · snowiest: December
Hottest on record113°F · July 14, 1936
Coldest on record−26°F · January 19, 1985
Wettest day on record5.49 in · July 14, 1958
Snowiest day on record17.0 in · December 1, 2006
90° days a year19 · very few reach 100°
Nights at or below 32°139 · and 46 days that stay below freezing
Climate typeHot-summer humid continental · Köppen Dfa
1Freeze season · from the first fall freeze, about Oct. 12, to the last in spring, about April 22 (median dates)
2Highs below freezing · Dec. 26 to Feb. 9; normal highs stay below 32°
3Lows below freezing · Nov. 9 to April 1; normal lows fall below 32°
4Wettest stretch · May through July: 13.0 of the year’s 38.0 inches
NOVEMBER 14 IN THE RECORD

On November 14 Lostant normally reaches 49° and falls to 30°. The record high is 76°, in 1989; the record low 6°, in 1986. The most rain on this date, 2.04 in, fell in 1926.

Normals 1991–2020 and records since 1901 at Peru, 14 miles north. NOAA, through RCC-ACIS.
3

Where the rain goes

≈ 1,410 mito the Gulf of AmericaLittle Sandy Creek → Sandy Creek → Illinois → Mississippi

A raindrop that lands in Lostant reaches the Gulf of America by way of Little Sandy Creek, Sandy Creek, the Illinois and the Mississippi: about 1,410 river miles.

Lake on the way: Peoria Lake.

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