Observed 6:45 AM CDT at KCPS

Caseyville, IL weather

Clear and 45°7°, 8°4° warmer than a typical Oct 24.

Forecasts agree

Now 45°7°

Clear

Wind: Calm; Up to 5 mph8 km/h through 7 PM
Dew point: 45°7°; Comfortable
Humidity: 100%; Air 45°7°, dew point 45°7° · fog or dew likely
UV index: 0Low; Moderate 11 AM–4 PM · peak 4
Air quality: 67Moderate; Main pollutant: PM2.5 (fine particles)
Pressure: 30.34 inHg1027 hPa; Rising slowly · +0.04 inHg+1.4 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Above 60°16° today by 10 AM
High 77°25° today at 4 PM
Drops 12°7° tonight 6–9 PM (72°22° → 60°16°)
Below 60°16° tonight after 9 PM

This morningUp to 66°19° by 11 AM · Partly cloudy
This afternoonUp to 77°25° by 4 PM · Mostly cloudy
TonightDown to 50°10° by 5 AM · Partly cloudy
Tomorrow morningUp to 69°21° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 79°26° by 4 PM · Mostly cloudy
Tomorrow nightDown to 53°12° by 5 AM · Mostly 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 7a	Mostly sunny	47°8° (likely 47°8° to 50°10°)	47°8°	0%	2 mph3 km/h from SE, gusts 6 mph10 km/h	89%	30%	0
Sat 8a	Mostly sunny	51°11° (likely 48°9° to 52°11°)	51°11°	0%	3 mph5 km/h from SE, gusts 7 mph11 km/h	86%	31%	0
Sat 9a	Mostly sunny	54°12° (likely 54°12° to 57°14°)	54°12°	0%	3 mph5 km/h from SE, gusts 7 mph11 km/h	86%	66%	1
Sat 10a	Mostly sunny	61°16° (likely 60°16° to 61°16°)	61°16°	0%	3 mph5 km/h from SE, gusts 9 mph15 km/h	72%	67%	1
Sat 11a	Cloudy	66°19° (likely 65°18° to 66°19°)	66°19°	0%	5 mph8 km/h from SE, gusts 9 mph15 km/h	58%	72%	3
Sat 12p	Partly sunny	70°21° (likely 68°20° to 70°21°)	70°21°	0%	3 mph5 km/h from SE, gusts 8 mph13 km/h	49%	74%	4
Sat 1p	Partly sunny	73°23° (likely 71°22° to 73°23°)	73°23°	0%	3 mph5 km/h from SE, gusts 7 mph11 km/h	43%	71%	4
Sat 2p	Cloudy	74°23° (likely 72°22° to 74°23°)	74°23°	0%	3 mph5 km/h from SE, gusts 7 mph11 km/h	41%	75%	4
Sat 3p	Cloudy	75°24° (likely 73°23° to 75°24°)	75°24°	0%	3 mph5 km/h from SE, gusts 8 mph13 km/h	40%	64%	3
Sat 4p	Partly sunny	77°25° (likely 72°22° to 77°25°)	77°25°	0%	3 mph5 km/h from SE, gusts 9 mph14 km/h	36%	54%	2
Sat 5p	Partly sunny	75°24° (likely 70°21° to 75°24°)	75°24°	0%	3 mph5 km/h from SE, gusts 10 mph16 km/h	40%	70%	1
Sat 6p	Partly cloudy	72°22° (likely 66°19° to 72°22°)	72°22°	0%	3 mph5 km/h from SE, gusts 7 mph12 km/h	44%	48%	0
Sat 7p	Partly cloudy	67°19° (likely 63°17° to 67°19°)	67°19°	0%	3 mph5 km/h from E, gusts 7 mph12 km/h	52%	44%	0
Sat 8p	Clear	60°16° (likely 60°16° to 63°17°)	60°16°	0%	3 mph5 km/h from SE, gusts 8 mph13 km/h	64%	41%	0
Sat 9p	Clear	59°15° (likely 59°15° to 61°16°)	59°15°	0%	3 mph5 km/h from SE, gusts 10 mph16 km/h	67%	40%	0
Sat 10p	Clear	57°14° (likely 57°14° to 61°16°)	57°14°	0%	3 mph5 km/h from SE, gusts 11 mph18 km/h	72%	40%	0
Sat 11p	Clear	56°13° (likely 56°13° to 60°16°)	56°13°	0%	2 mph3 km/h from SE, gusts 11 mph17 km/h	72%	40%	0
Sun 12a	Mostly clear	55°13° (likely 55°13° to 58°14°)	55°13°	0%	2 mph3 km/h from SE, gusts 10 mph17 km/h	72%	14%	0
Sun 1a	Mostly clear	54°12° (likely 54°12° to 57°14°)	54°12°	0%	2 mph3 km/h from SE, gusts 10 mph15 km/h	77%	38%	0
Sun 2a	Mostly clear	52°11° (likely 52°11° to 56°13°)	52°11°	0%	2 mph3 km/h from SE, gusts 9 mph14 km/h	83%	48%	0
Sun 3a	Mostly clear	52°11° (likely 52°11° to 55°13°)	52°11°	0%	2 mph3 km/h from SE, gusts 8 mph13 km/h	83%	46%	0
Sun 4a	Mostly clear	51°11° (likely 51°11° to 54°12°)	51°11°	0%	2 mph3 km/h from SE, gusts 8 mph12 km/h	83%	43%	0
Sun 5a	Mostly clear	50°10° (likely 50°10° to 53°12°)	50°10°	0%	2 mph3 km/h from SE, gusts 7 mph11 km/h	86%	31%	0
Sun 6a	Mostly clear	50°10° (likely 49°9° to 52°11°)	50°10°	0%	1 mph2 km/h from SE, gusts 6 mph10 km/h	86%	57%	0
Sun 7a	Mostly sunny	49°9° (likely 49°9° to 52°11°)	49°9°	0%	1 mph2 km/h from SE, gusts 6 mph10 km/h	86%	52%	0
Sun 8a	Mostly sunny	50°10° (likely 49°9° to 53°12°)	50°10°	0%	1 mph2 km/h from SE, gusts 6 mph10 km/h	89%	71%	0
Sun 9a	Mostly sunny	55°13° (likely 55°13° to 59°15°)	55°13°	0%	2 mph3 km/h from SE, gusts 6 mph10 km/h	86%	64%	1
Sun 10a	Cloudy	64°18° (likely 61°16° to 66°19°)	64°18°	0%	2 mph3 km/h from SE, gusts 6 mph9 km/h	67%	80%	2
Sun 11a	Partly sunny	69°21° (likely 65°18° to 70°21°)	69°21°	0%	2 mph3 km/h from S, gusts 6 mph9 km/h	57%	72%	3
Sun 12p	Partly sunny	72°22° (likely 70°21° to 74°23°)	72°22°	0%	2 mph3 km/h from S, gusts 5 mph9 km/h	51%	72%	4
Sun 1p	Cloudy	76°24° (likely 73°23° to 76°24°)	76°24°	0%	2 mph3 km/h from S, gusts 4 mph7 km/h	43%	77%	4
Sun 2p	Cloudy	77°25° (likely 75°24° to 78°26°)	77°25°	0%	2 mph3 km/h from S, gusts 3 mph5 km/h	42%	79%	4
Sun 3p	Cloudy	78°26° (likely 75°24° to 78°26°)	78°26°	0%	2 mph3 km/h from S, gusts 4 mph6 km/h	40%	80%	4
Sun 4p	Cloudy	79°26° (likely 75°24° to 79°26°)	79°26°	0%	2 mph3 km/h from SE, gusts 4 mph7 km/h	38%	81%	2
Sun 5p	Cloudy	77°25° (likely 73°23° to 77°25°)	77°25°	0%	1 mph2 km/h from SE, gusts 5 mph8 km/h	43%	77%	1
Sun 6p	Cloudy	74°23° (likely 68°20° to 74°23°)	74°23°	0%	1 mph2 km/h from SE, gusts 5 mph9 km/h	46%	72%	0
Sun 7p	Cloudy	69°21° (likely 65°18° to 69°21°)	69°21°	0%	1 mph2 km/h from SE, gusts 6 mph9 km/h	55%	81%	0
Sun 8p	Cloudy	63°17° (likely 63°17° to 65°18°)	63°17°	0%	1 mph2 km/h from SE, gusts 6 mph10 km/h	65%	81%	0
Sun 9p	Cloudy	61°16° (likely 61°16° to 64°18°)	61°16°	0%	1 mph2 km/h from SE, gusts 7 mph12 km/h	70%	77%	0
Sun 10p	Cloudy	60°16° (likely 60°16° to 63°17°)	60°16°	0%	2 mph3 km/h from SE, gusts 8 mph13 km/h	75%	80%	0
Sun 11p	Cloudy	59°15° (likely 59°15° to 62°17°)	59°15°	0%	2 mph3 km/h from S, gusts 8 mph13 km/h	78%	84%	0
Mon 12a	Cloudy	58°14° (likely 58°14° to 61°16°)	58°14°	0%	1 mph2 km/h from S, gusts 7 mph11 km/h	77%	86%	0
Mon 1a	Cloudy	57°14° (likely 57°14° to 61°16°)	57°14°	0%	1 mph2 km/h from S, gusts 6 mph10 km/h	77%	89%	0
Mon 2a	Cloudy	56°13° (likely 56°13° to 61°16°)	56°13°	0%	1 mph2 km/h from S, gusts 4 mph7 km/h	80%	91%	0
Mon 3a	Cloudy	55°13° (likely 55°13° to 60°16°)	55°13°	0%	0 mph0 km/h, gusts 4 mph6 km/h	80%	94%	0
Mon 4a	Cloudy	54°12° (likely 54°12° to 60°16°)	54°12°	0%	0 mph0 km/h, gusts 4 mph6 km/h	83%	91%	0
Mon 5a	Cloudy	53°12° (likely 53°12° to 60°16°)	53°12°	0%	0 mph0 km/h, gusts 3 mph5 km/h	83%	86%	0
Mon 6a	Cloudy	52°11° (likely 52°11° to 59°15°)	52°11°	0%	0 mph0 km/h, gusts 3 mph5 km/h	86%	84%	0

Days ahead

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

Today, Oct 24. Cloudy. High 77°25°, low 49°9°. Typical 69°21° / 44°7°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Mostly sunny, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 77°25°
  Dry
3. Evening
  6 PM–midnight
  Clear, 60°16°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 50°10°
  Dry
Official NWS forecast
Today: Mostly sunny, with a high near 77. Southeast wind around 5 mph.
Tonight: Mostly clear, with a low around 49. Southeast wind around 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
73°23°–77°25°
Low, likely
48°9°–50°10°
Typical high / low
69°21° / 44°7°
Wind
8 mph13 km/h, gusts 16 mph26 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 79°26°, low 52°11°. Typical 69°21° / 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 79°26°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 63°17°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 53°12°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 79. Southeast wind around 2 mph.
Night: Mostly cloudy, with a low around 52. Southeast wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–79°26°
Low, likely
49°9°–52°11°
Typical high / low
69°21° / 44°7°
Wind
7 mph12 km/h, gusts 15 mph25 km/h
UV peak
4
Monday, Oct 26. Cloudy. High 78°26°, low 52°11°. Typical 68°20° / 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 76°24°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 63°17°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 54°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 78. Southwest wind around 2 mph.
Night: Mostly cloudy, with a low around 52.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
74°23°–78°26°
Low, likely
52°11°–58°14°
Typical high / low
68°20° / 44°7°
Wind
7 mph10 km/h
UV peak
4
Tuesday, Oct 27. Cloudy. High 76°24°, low 53°12°. Typical 68°20° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 63°17°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 55°13°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly cloudy, with a high near 76.
Night: Mostly cloudy, with a low around 53.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
71°22°–76°24°
Low, likely
50°10°–56°13°
Typical high / low
68°20° / 43°6°
Wind
9 mph15 km/h, gusts 21 mph34 km/h
UV peak
3
Wednesday, Oct 28. Cloudy. High 80°27°, low 55°13°. Typical 67°19° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 56°13°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 78°25°
  Dry
3. Evening
  6 PM–midnight
  Clear, 65°18°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 56°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 55.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–80°27°
Low, likely
52°11°–55°13°
Typical high / low
67°19° / 43°6°
Wind
10 mph15 km/h, gusts 19 mph30 km/h
UV peak
4
Thursday, Oct 29. Mostly sunny. High 79°26°, low 53°12°. Typical 67°19° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 59°15°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 79°26°
  Dry
3. Evening
  6 PM–midnight
  Clear, 67°19°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 56°13°
  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
77°25°–80°27°
Low, likely
52°11°–59°15°
Typical high / low
67°19° / 43°6°
Wind
11 mph17 km/h, gusts 25 mph40 km/h
UV peak
4
Friday, Oct 30. Partly sunny. High 77°25°, low 54°12°. Typical 66°19° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 58°14°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 79°26°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 67°19°
  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 77.
Night: A slight chance of rain showers after 1am. Mostly cloudy, with a low around 54. Chance of precipitation is 20%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–81°27°
Low, likely
52°11°–59°15°
Typical high / low
66°19° / 42°6°
Wind
10 mph16 km/h, gusts 17 mph28 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 75°24°, low 60°16°. Typical 66°19° / 42°6°. Rain 0.1 in2.5 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 62°17°
  20% chance
2. Afternoon
  noon–6 PM
  Cloudy, 76°24°
  30% chance
3. Evening
  6 PM–midnight
  Cloudy, 70°21°
  40% chance · 0.01 in0.3 mm
4. Overnight
  midnight–6 AM
  Cloudy, 67°19°
  40% chance · 0.07 in1.8 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°–82°28°
Low, likely
57°14°–64°18°
Typical high / low
66°19° / 42°6°
Wind
12 mph19 km/h, gusts 22 mph36 km/h
UV peak
2
Sunday, Nov 1. Showers. High 71°22°, low 63°17°. Typical 65°18° / 42°6°. Rain 0.56 in14 mm, 50% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 66°19°
  50% chance · 0.12 in3 mm
2. Afternoon
  noon–6 PM
  Showers, 67°20°
  40% chance · 0.23 in5.8 mm
3. Evening
  6 PM–midnight
  Drizzle, 67°19°
  40% chance · 0.1 in2.4 mm
4. Overnight
  midnight–6 AM
  Drizzle, 59°15°
  40% chance · 0.15 in3.7 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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
68°20°–73°23°
Low, likely
59°15°–65°18°
Typical high / low
65°18° / 42°6°
Wind
22 mph36 km/h, gusts 38 mph62 km/h
Monday, Nov 2. Rain. High 68°20°, low 59°15°. Typical 65°18° / 41°5°. Rain 0.4 in10 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 60°16°
  40% chance · 0.11 in2.9 mm
2. Afternoon
  noon–6 PM
  Drizzle, 63°17°
  30% chance · 0.18 in4.5 mm
3. Evening
  6 PM–midnight
  Rain, 64°18°
  30% chance · 0.14 in3.6 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
62°17°–73°23°
Low, likely
50°10°–67°19°
Typical high / low
65°18° / 41°5°
Wind
21 mph34 km/h, gusts 39 mph62 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 77°, low 49°.
Tomorrow
Dry, high 79°, low 52°.
Monday
Dry, high 78°, low 52°.
Rest of week
Highs 68–80°; 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

7.8 mi

Below flood stage

Level: 8.1 ft
Flow: 172,000 cfs

Forecast peak 8.0 ft Sat 7 AM

Reading from Sat 5:30 AM · NWS gauge page

Mississippi River at Mel Price (Alton) Lock and Dam

18 mi

Below flood stage

Level: 7.7 ft
Flow: 124,000 cfs

Forecast peak 7.6 ft Sat 7 AM

Reading from Sat 5:30 AM · NWS gauge page

Silver Creek near Mascoutah

13 mi

Level: 7.9 ft
Flow: 1,440 cfs

Reading from Sat 4:45 AM · NWS gauge page

Mississippi River at Alton

20 mi

Below flood stage

Level: 18.4 ft

Reading from Sat 5:30 AM · NWS gauge page

For your home

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

Heating this week

About 83% less heating than a typical week.

This week 12Typical 67

Heating degree days, base 65°F

Comfort

Dry air outside (dew point 45°F).

Open the windows?

Today, 10:00 AM–8:00 PM

Good stretch to open the windows.

Is this typical?

BELLEVILLE SIU RESEARCH · official normals 1991–2020 · records 1948–2026

Oct 24, today vs a typical year

Today’s expected high is 8°4° warmer than typical.

Last 7 days vs normal

—SunOct 18
—MonOct 19
—TueOct 20
—WedOct 21
—ThuOct 22
—FriOct 23
—SatOct 24

Caseyville 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: 5:32–6:26 PM; Morning 7:01–7:55 AM
Blue hour: 6:26–6:36 PM; Morning 6:51–7:01 AM; first light 6:51 AM

Stars tonight? Poor

Clouds most of the night (about 41% cover).

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:33 AM · rises 5:06 PM
Full moon: Oct 25
New moon: Nov 9

Looking west from Caseyville. The highest point on the skyline is about 1,100 ft, 12 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Caseyville, 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

Silver Creek near Mascoutah

Mississippi River at Alton

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