Observed 12:45 PM CDT at KCPS

East St. Louis, IL weather

Sunny and 73°23°, 10°6° warmer than a typical Oct 24.

Forecasts agree

Now 73°23°

Sunny

Wind: Calm; Up to 6 mph10 km/h through 1 AM
Dew point: 45°7°; Comfortable
UV index: 4Moderate; Moderate until 4 PM
Air quality: 58Moderate; Main pollutant: PM2.5 (fine particles)
Pressure: 30.35 inHg1028 hPa; Falling · −0.05 inHg−1.7 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

High 76°24° today at 4 PM
Low 50°10° tomorrow at 6 AM
Above 60°16° tomorrow by 10 AM

This afternoonNear 74°23° · Partly cloudy
TonightDown to 51°11° by 5 AM · Partly cloudy
Tomorrow morningUp to 68°20° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 78°26° by 4 PM · Mostly cloudy
Tomorrow nightDown to 54°12° by 5 AM · Mostly cloudy
Monday morningUp to 69°21° by 11 AM · Cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 1p	Partly sunny	73°23° (likely 70°21° to 73°23°)	73°23°	0%	5 mph8 km/h from SE, gusts 7 mph11 km/h	40%	57%	4
Sat 2p	Partly sunny	74°23° (likely 72°22° to 74°23°)	74°23°	0%	5 mph8 km/h from SE, gusts 7 mph11 km/h	38%	75%	4
Sat 3p	Mostly cloudy	75°24° (likely 73°23° to 75°24°)	75°24°	0%	6 mph10 km/h from SE, gusts 7 mph11 km/h	36%	63%	3
Sat 4p	Partly sunny	76°24° (likely 72°22° to 76°24°)	76°24°	0%	6 mph10 km/h from SE, gusts 8 mph13 km/h	34%	47%	2
Sat 5p	Sunny	74°23° (likely 70°21° to 75°24°)	74°23°	0%	5 mph8 km/h from SE, gusts 8 mph13 km/h	37%	1%	1
Sat 6p	Partly cloudy	71°22° (likely 65°18° to 71°22°)	71°22°	0%	3 mph5 km/h from SE, gusts 9 mph14 km/h	41%	50%	0
Sat 7p	Mostly clear	65°18° (likely 62°17° to 66°19°)	65°18°	0%	3 mph5 km/h from SE, gusts 6 mph10 km/h	52%	17%	0
Sat 8p	Partly cloudy	62°17° (likely 61°16° to 63°17°)	62°17°	0%	3 mph5 km/h from SE, gusts 6 mph10 km/h	60%	42%	0
Sat 9p	Partly cloudy	60°16° (likely 59°15° to 61°16°)	60°16°	0%	2 mph3 km/h from SE, gusts 7 mph12 km/h	64%	43%	0
Sat 10p	Partly cloudy	58°14° (likely 58°14° to 59°15°)	58°14°	0%	2 mph3 km/h from SE, gusts 10 mph15 km/h	69%	30%	0
Sat 11p	Mostly clear	57°14° (likely 56°13° to 58°14°)	57°14°	0%	2 mph3 km/h from SE, gusts 9 mph14 km/h	69%	13%	0
Sun 12a	Clear	56°13° (likely 55°13° to 56°13°)	56°13°	0%	1 mph2 km/h from SE, gusts 8 mph14 km/h	72%	40%	0
Sun 1a	Partly cloudy	54°12° (likely 54°12° to 55°13°)	54°12°	0%	1 mph2 km/h from SE, gusts 6 mph10 km/h	77%	33%	0
Sun 2a	Partly cloudy	54°12° (likely 52°11° to 54°12°)	54°12°	0%	1 mph2 km/h from SE, gusts 6 mph9 km/h	77%	41%	0
Sun 3a	Partly cloudy	53°12° (likely 51°11° to 53°12°)	53°12°	0%	1 mph2 km/h from SE, gusts 5 mph8 km/h	80%	25%	0
Sun 4a	Partly cloudy	52°11° (likely 50°10° to 52°11°)	52°11°	0%	1 mph2 km/h from SE, gusts 5 mph8 km/h	83%	43%	0
Sun 5a	Cloudy	51°11° (likely 49°9° to 51°11°)	51°11°	0%	1 mph2 km/h from SE, gusts 5 mph9 km/h	83%	62%	0
Sun 6a	Partly cloudy	50°10° (likely 48°9° to 50°10°)	50°10°	0%	1 mph2 km/h from SE, gusts 5 mph8 km/h	86%	57%	0
Sun 7a	Cloudy	50°10° (likely 47°8° to 51°11°)	50°10°	0%	1 mph2 km/h from SE, gusts 5 mph8 km/h	86%	63%	0
Sun 8a	Cloudy	51°11° (likely 47°8° to 52°11°)	51°11°	0%	1 mph2 km/h from SE, gusts 4 mph7 km/h	86%	72%	0
Sun 9a	Cloudy	57°14° (likely 52°11° to 57°14°)	57°14°	0%	1 mph2 km/h from SE, gusts 5 mph7 km/h	75%	72%	1
Sun 10a	Cloudy	63°17° (likely 60°16° to 63°17°)	63°17°	0%	2 mph3 km/h from S, gusts 6 mph10 km/h	62%	67%	2
Sun 11a	Cloudy	68°20° (likely 65°18° to 69°21°)	68°20°	0%	3 mph5 km/h from S, gusts 7 mph12 km/h	55%	75%	3
Sun 12p	Cloudy	72°22° (likely 70°21° to 74°23°)	72°22°	0%	3 mph5 km/h from S, gusts 6 mph10 km/h	46%	80%	4
Sun 1p	Cloudy	75°24° (likely 73°23° to 77°25°)	75°24°	0%	2 mph3 km/h from S, gusts 5 mph8 km/h	40%	80%	4
Sun 2p	Cloudy	76°24° (likely 74°23° to 79°26°)	76°24°	0%	2 mph3 km/h from SE, gusts 4 mph7 km/h	39%	81%	4
Sun 3p	Cloudy	77°25° (likely 75°24° to 79°26°)	77°25°	0%	2 mph3 km/h from SE, gusts 5 mph7 km/h	36%	81%	4
Sun 4p	Cloudy	78°26° (likely 74°23° to 79°26°)	78°26°	0%	2 mph3 km/h from SE, gusts 5 mph8 km/h	35%	81%	3
Sun 5p	Cloudy	76°24° (likely 72°22° to 78°26°)	76°24°	0%	1 mph2 km/h from SE, gusts 6 mph9 km/h	39%	80%	1
Sun 6p	Cloudy	72°22° (likely 68°20° to 72°22°)	72°22°	0%	2 mph3 km/h from SE, gusts 6 mph10 km/h	44%	80%	0
Sun 7p	Cloudy	68°20° (likely 65°18° to 68°20°)	68°20°	0%	2 mph3 km/h from SE, gusts 5 mph9 km/h	53%	80%	0
Sun 8p	Cloudy	64°18° (likely 63°17° to 65°18°)	64°18°	0%	2 mph3 km/h from SE, gusts 6 mph10 km/h	63%	81%	0
Sun 9p	Cloudy	62°17° (likely 62°17° to 63°17°)	62°17°	0%	2 mph3 km/h from SE, gusts 7 mph12 km/h	67%	81%	0
Sun 10p	Cloudy	60°16° (likely 60°16° to 61°16°)	60°16°	0%	1 mph2 km/h from SE, gusts 8 mph13 km/h	72%	81%	0
Sun 11p	Cloudy	59°15° (likely 59°15° to 60°16°)	59°15°	0%	1 mph2 km/h from SE, gusts 9 mph14 km/h	75%	81%	0
Mon 12a	Cloudy	58°14° (likely 58°14° to 59°15°)	58°14°	0%	1 mph2 km/h from S, gusts 7 mph12 km/h	75%	82%	0
Mon 1a	Cloudy	57°14° (likely 57°14° to 58°14°)	57°14°	0%	1 mph2 km/h from S, gusts 5 mph8 km/h	75%	82%	0
Mon 2a	Cloudy	56°13° (likely 56°13° to 57°14°)	56°13°	0%	1 mph2 km/h from S, gusts 5 mph8 km/h	77%	82%	0
Mon 3a	Cloudy	55°13° (likely 55°13° to 56°13°)	55°13°	0%	1 mph2 km/h from S, gusts 5 mph7 km/h	80%	82%	0
Mon 4a	Cloudy	55°13° (likely 54°12° to 55°13°)	55°13°	0%	1 mph2 km/h from S, gusts 4 mph7 km/h	80%	83%	0
Mon 5a	Cloudy	54°12° (likely 53°12° to 55°13°)	54°12°	0%	1 mph2 km/h from S, gusts 4 mph6 km/h	80%	86%	0
Mon 6a	Cloudy	54°12° (likely 53°12° to 56°13°)	54°12°	0%	0 mph0 km/h, gusts 4 mph6 km/h	80%	85%	0
Mon 7a	Cloudy	53°12° (likely 52°11° to 58°14°)	53°12°	0%	1 mph2 km/h from S, gusts 4 mph6 km/h	83%	88%	0
Mon 8a	Cloudy	54°12° (likely 52°11° to 63°17°)	54°12°	0%	0 mph0 km/h, gusts 3 mph5 km/h	83%	92%	0
Mon 9a	Cloudy	58°14° (likely 56°13° to 64°18°)	58°14°	0%	0 mph0 km/h, gusts 5 mph7 km/h	75%	85%	1
Mon 10a	Mostly cloudy	65°18° (likely 62°17° to 67°19°)	65°18°	0%	1 mph2 km/h from SW, gusts 6 mph10 km/h	60%	83%	2
Mon 11a	Cloudy	69°21° (likely 65°18° to 71°22°)	69°21°	0%	2 mph3 km/h from SW, gusts 8 mph12 km/h	55%	96%	3
Mon 12p	Cloudy	72°22° (likely 69°21° to 74°23°)	72°22°	0%	3 mph5 km/h from SW, gusts 9 mph15 km/h	48%	90%	3

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Cloudy. High 76°24°, low 50°10°. Typical 66°19° / 43°6°. Dry. Forecasts agree.
1. Afternoon
  noon–6 PM
  Mostly cloudy, 76°24°
  Dry
2. Evening
  6 PM–midnight
  Partly cloudy, 62°17°
  Dry
3. Overnight
  midnight–6 AM
  Partly cloudy, 51°11°
  Dry
Official NWS forecast
Today: Mostly sunny, with a high near 76. Southeast wind around 6 mph.
Tonight: Partly cloudy, with a low around 50. Southeast wind around 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
73°23°–76°24°
Low, likely
46°8°–50°10°
Typical high / low
66°19° / 43°6°
Wind
6 mph10 km/h, gusts 14 mph22 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 78°26°, low 52°11°. Typical 66°19° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 78°26°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 54°12°
  Dry
Official NWS forecast
Day: Partly sunny, with a high near 78. Southeast wind around 3 mph.
Night: Mostly cloudy, with a low around 52. South wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–79°26°
Low, likely
47°8°–52°11°
Typical high / low
66°19° / 43°6°
Wind
6 mph9 km/h, gusts 13 mph21 km/h
UV peak
4
Monday, Oct 26. Cloudy. High 78°26°, low 52°11°. Typical 65°18° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 76°24°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 54°12°
  Dry
Official NWS forecast
Day: Partly sunny, with a high near 78. South wind 0 to 3 mph.
Night: Partly cloudy, with a low around 52.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–78°26°
Low, likely
52°11°–54°12°
Typical high / low
65°18° / 42°6°
Wind
6 mph9 km/h
UV peak
3
Tuesday, Oct 27. Cloudy. High 77°25°, low 52°11°. Typical 65°18° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 65°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 54°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly cloudy, with a high near 77.
Night: Mostly cloudy, with a low around 52.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
71°22°–77°25°
Low, likely
50°10°–58°14°
Typical high / low
65°18° / 42°6°
Wind
7 mph11 km/h, gusts 20 mph31 km/h
UV peak
4
Wednesday, Oct 28. Partly sunny. High 80°27°, low 54°12°. Typical 64°18° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 78°26°
  Dry
3. Evening
  6 PM–midnight
  Clear, 68°20°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 58°14°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 80.
Night: Mostly clear, with a low around 54.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–80°27°
Low, likely
49°9°–58°14°
Typical high / low
64°18° / 42°6°
Wind
9 mph14 km/h, gusts 20 mph32 km/h
UV peak
4
Thursday, Oct 29. Mostly sunny. High 79°26°, low 53°12°. Typical 64°18° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 59°15°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 81°27°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 70°21°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 58°14°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 79.
Night: Partly cloudy, with a low around 53.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
78°26°–82°28°
Low, likely
53°12°–60°16°
Typical high / low
64°18° / 41°5°
Wind
8 mph13 km/h, gusts 26 mph41 km/h
UV peak
4
Friday, Oct 30. Cloudy. High 78°26°, low 54°12°. Typical 63°17° / 41°5°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 59°15°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 79°26°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 69°21°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 59°15°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 78.
Night: A slight chance of rain showers after 1am. Mostly cloudy, with a low around 54. Chance of precipitation is 20%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
75°24°–81°27°
Low, likely
54°12°–61°16°
Typical high / low
63°17° / 41°5°
Wind
11 mph18 km/h, gusts 20 mph33 km/h
UV peak
4
Saturday, Oct 31. Drizzle. High 73°23°, low 61°16°. Typical 63°17° / 41°5°. Rain 0.16 in4.1 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 61°16°
  30% chance
2. Afternoon
  noon–6 PM
  Cloudy, 75°24°
  30% chance
3. Evening
  6 PM–midnight
  Drizzle, 69°21°
  40% chance · 0.05 in1.3 mm
4. Overnight
  midnight–6 AM
  Drizzle, 65°18°
  50% chance · 0.16 in4 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
70°21°–77°25°
Low, likely
58°14°–66°19°
Typical high / low
63°17° / 41°5°
Wind
13 mph22 km/h, gusts 25 mph40 km/h
UV peak
1
Sunday, Nov 1. Drizzle. High 75°24°, low 62°17°. Typical 62°17° / 40°4°. Rain 0.41 in10 mm, 50% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 67°19°
  50% chance · 0.05 in1.3 mm
2. Afternoon
  noon–6 PM
  Drizzle, 77°25°
  40% chance
3. Evening
  6 PM–midnight
  Drizzle, 71°22°
  40% chance · 0.09 in2.3 mm
4. Overnight
  midnight–6 AM
  Drizzle, 55°13°
  40% chance · 0.04 in1 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
70°21°–80°27°
Low, likely
60°16°–63°17°
Typical high / low
62°17° / 40°4°
Wind
16 mph25 km/h, gusts 41 mph67 km/h
UV peak
3
Monday, Nov 2. Drizzle. High 65°18°, low 52°11°. Typical 62°17° / 40°4°. Rain 0.28 in7.1 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 55°13°
  40% chance · 0.05 in1.4 mm
2. Afternoon
  noon–6 PM
  Drizzle, 57°14°
  40% chance · 0.09 in2.4 mm
3. Evening
  6 PM–midnight
  Drizzle, 56°13°
  30% chance · 0.02 in0.5 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
59°15°–74°23°
Low, likely
40°4°–67°19°
Typical high / low
62°17° / 40°4°
Wind
17 mph28 km/h, gusts 39 mph63 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 76°, low 50°.
Tomorrow
Dry, high 78°, low 52°.
Monday
Dry, high 78°, low 52°.
Rest of week
Highs 65–80°; chance of precipitation on Sunday, Monday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (LSX) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Mississippi River at St. Louis

2.8 mi

Below flood stage

Level: 7.9 ft
Flow: 170,000 cfs

Forecast peak 8.1 ft Sat 1 PM

Reading from Sat 12 PM · NWS gauge page

Mississippi River at Mel Price (Alton) Lock and Dam

17 mi

Below flood stage

Level: 7.2 ft
Flow: 117,000 cfs

Forecast peak 7.5 ft Sat 1 PM

Reading from Sat 12:30 PM · NWS gauge page

Missouri River at St. Charles

22 mi

Below flood stage

Level: 12.2 ft
Flow: 63,700 cfs

Forecast peak 12.2 ft Sat 1 PM

Reading from Sat 12 PM · NWS gauge page

Meramec River at Arnold

17 mi

Below flood stage

Level: 5.8 ft
Flow: 7,170 cfs

Reading from Sat 12 PM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 87% less heating than a typical week.

This week 11Typical 82

Heating degree days, base 65°F

Comfort

Dry air outside (dew point 45°F).

Open the windows?

Today, 2:00 PM–9:00 PM

Good stretch to open the windows.

Is this typical?

Cahokia St. Louis Downtown Airport · official normals 1991–2020 · records 1997–2026

Oct 24, today vs a typical year

Today’s expected high is 10°6° warmer than typical.

Last 7 days vs normal

On average 1° warmer than normal (daily mean temperature).

−6°−3°SunOct 18
−2°−1°MonOct 19
+3°+2°TueOct 20
+4°+2°WedOct 21
+5°+3°ThuOct 22
+6°+3°FriOct 23
—SatOct 24

East St. Louis weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 51 min; Losing 2 min 16 s a day; shortest Dec 21, 1 h 23 min less
Golden hour: 5:33–6:26 PM; Morning 7:02–7:55 AM
Blue hour: 6:26–6:37 PM; Morning 6:51–7:02 AM; first light 6:51 AM

Stars tonight? Poor

Clouds most of the night (about 38% cover).

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:34 AM · rises 5:07 PM
Full moon: Oct 25
New moon: Nov 9

Looking southwest from East St. Louis. The highest point on the skyline is about 3,000 ft, 7 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

East St. Louis, IL weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Mississippi River at St. Louis

Mississippi River at Mel Price (Alton) Lock and Dam

Missouri River at St. Charles

Meramec River at Arnold

For your home

Heating this week

Comfort

Open the windows?

Is this typical?

Oct 24, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Poor

Moon