Observed 2:45 PM CDT at KCPS

Mehlville, MO weather

Sunny and 75°24°, 10°6° warmer than a typical Oct 24.

Mostly agree

Now 75°24°

Sunny

Wind: 8 mph13 km/h; From the southeast. Up to 8 mph13 km/h through 3 AM
Dew point: 45°7°; Comfortable
UV index: 3Moderate; Moderate until 4 PM · peak 4
Air quality: 50Good; Ozone · tomorrow moderate
Pressure: 30.32 inHg1027 hPa; Falling · −0.05 inHg−1.9 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

About the same as this time yesterday (76°24° then, 75°24° now)

Good hours for

Below 60°16° tonight after 9 PM
Low 50°10° tomorrow at 7 AM
Above 60°16° tomorrow by 10 AM

This afternoonNear 75°24° · Clear
TonightDown to 52°11° by 4 AM · Partly cloudy
Tomorrow morningUp to 68°20° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 78°26° by 3 PM · Mostly cloudy
Tomorrow nightDown to 54°12° by 5 AM · Mostly cloudy
Monday morningUp to 69°21° by 11 AM · Cloudy
Monday afternoonUp to 77°25° by 2 PM · 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 3p	Partly sunny	75°24° (likely 72°22° to 75°24°)	75°24°	0%	5 mph8 km/h from SE, gusts 7 mph11 km/h	34%	53%	3
Sat 4p	Sunny	75°24° (likely 72°22° to 75°24°)	75°24°	0%	6 mph10 km/h from SE, gusts 8 mph14 km/h	34%	11%	2
Sat 5p	Sunny	74°23° (likely 70°21° to 74°23°)	74°23°	0%	3 mph5 km/h from SE, gusts 8 mph13 km/h	35%	2%	1
Sat 6p	Clear	70°21° (likely 65°18° to 70°21°)	70°21°	0%	3 mph5 km/h from SE, gusts 9 mph14 km/h	44%	25%	0
Sat 7p	Clear	65°18° (likely 62°17° to 65°18°)	65°18°	0%	3 mph5 km/h from SE, gusts 6 mph9 km/h	52%	15%	0
Sat 8p	Clear	62°17° (likely 60°16° to 62°17°)	62°17°	0%	2 mph3 km/h from SE, gusts 6 mph10 km/h	60%	41%	0
Sat 9p	Partly cloudy	59°15° (likely 58°14° to 61°16°)	59°15°	0%	2 mph3 km/h from SE, gusts 7 mph11 km/h	64%	47%	0
Sat 10p	Clear	58°14° (likely 57°14° to 59°15°)	58°14°	0%	2 mph3 km/h from SE, gusts 7 mph11 km/h	69%	40%	0
Sat 11p	Clear	57°14° (likely 55°13° to 58°14°)	57°14°	0%	2 mph3 km/h from SE, gusts 8 mph12 km/h	72%	14%	0
Sun 12a	Partly cloudy	55°13° (likely 53°12° to 56°13°)	55°13°	0%	1 mph2 km/h from SE, gusts 7 mph12 km/h	77%	24%	0
Sun 1a	Clear	54°12° (likely 51°11° to 56°13°)	54°12°	0%	1 mph2 km/h from SE, gusts 7 mph11 km/h	80%	40%	0
Sun 2a	Clear	54°12° (likely 50°10° to 55°13°)	54°12°	0%	1 mph2 km/h from SE, gusts 6 mph10 km/h	77%	34%	0
Sun 3a	Partly cloudy	53°12° (likely 49°9° to 54°12°)	53°12°	0%	1 mph2 km/h from SE, gusts 6 mph10 km/h	80%	43%	0
Sun 4a	Partly cloudy	52°11° (likely 48°9° to 54°12°)	52°11°	0%	1 mph2 km/h from SE, gusts 6 mph9 km/h	83%	48%	0
Sun 5a	Mostly clear	52°11° (likely 47°8° to 52°11°)	52°11°	0%	1 mph2 km/h from SE, gusts 5 mph8 km/h	83%	59%	0
Sun 6a	Partly cloudy	51°11° (likely 46°8° to 52°11°)	51°11°	0%	1 mph2 km/h from SE, gusts 3 mph5 km/h	83%	55%	0
Sun 7a	Cloudy	50°10° (likely 46°8° to 51°11°)	50°10°	0%	1 mph2 km/h from SE, gusts 3 mph5 km/h	86%	63%	0
Sun 8a	Partly sunny	51°11° (likely 46°8° to 52°11°)	51°11°	0%	1 mph2 km/h from S, gusts 3 mph5 km/h	86%	70%	0
Sun 9a	Partly sunny	56°13° (likely 52°11° to 56°13°)	56°13°	0%	1 mph2 km/h from S, gusts 4 mph7 km/h	80%	86%	1
Sun 10a	Partly sunny	63°17° (likely 60°16° to 63°17°)	63°17°	0%	1 mph2 km/h from S, gusts 7 mph11 km/h	65%	70%	2
Sun 11a	Cloudy	68°20° (likely 65°18° to 69°21°)	68°20°	0%	2 mph3 km/h from S, gusts 8 mph12 km/h	55%	76%	3
Sun 12p	Cloudy	72°22° (likely 70°21° to 74°23°)	72°22°	0%	2 mph3 km/h from S, gusts 7 mph11 km/h	46%	80%	4
Sun 1p	Cloudy	75°24° (likely 73°23° to 77°25°)	75°24°	0%	2 mph3 km/h from SE, gusts 4 mph7 km/h	40%	81%	4
Sun 2p	Cloudy	77°25° (likely 74°23° to 78°26°)	77°25°	0%	2 mph3 km/h from SE, gusts 4 mph7 km/h	37%	81%	4
Sun 3p	Cloudy	78°26° (likely 75°24° to 79°26°)	78°26°	0%	2 mph3 km/h from SE, gusts 5 mph8 km/h	35%	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%	79%	2
Sun 5p	Cloudy	76°24° (likely 72°22° to 77°25°)	76°24°	0%	1 mph2 km/h from SE, gusts 6 mph9 km/h	37%	80%	1
Sun 6p	Cloudy	72°22° (likely 68°20° to 72°22°)	72°22°	0%	1 mph2 km/h from SE, gusts 6 mph10 km/h	44%	80%	0
Sun 7p	Cloudy	67°19° (likely 65°18° to 68°20°)	67°19°	0%	2 mph3 km/h from SE, gusts 7 mph11 km/h	56%	80%	0
Sun 8p	Cloudy	64°18° (likely 63°17° to 66°19°)	64°18°	0%	1 mph2 km/h from SE, gusts 7 mph11 km/h	63%	81%	0
Sun 9p	Cloudy	62°17° (likely 61°16° to 64°18°)	62°17°	0%	1 mph2 km/h from SE, gusts 7 mph11 km/h	67%	81%	0
Sun 10p	Cloudy	60°16° (likely 59°15° to 62°17°)	60°16°	0%	1 mph2 km/h from S, gusts 8 mph14 km/h	72%	81%	0
Sun 11p	Cloudy	59°15° (likely 59°15° to 61°16°)	59°15°	0%	1 mph2 km/h from S, gusts 9 mph14 km/h	72%	81%	0
Mon 12a	Cloudy	57°14° (likely 57°14° to 59°15°)	57°14°	0%	1 mph2 km/h from S, gusts 7 mph11 km/h	77%	82%	0
Mon 1a	Cloudy	57°14° (likely 56°13° to 58°14°)	57°14°	0%	1 mph2 km/h from S, gusts 6 mph10 km/h	75%	82%	0
Mon 2a	Cloudy	56°13° (likely 55°13° to 57°14°)	56°13°	0%	1 mph2 km/h from S, gusts 6 mph10 km/h	77%	82%	0
Mon 3a	Cloudy	55°13° (likely 54°12° to 56°13°)	55°13°	0%	1 mph2 km/h from S, gusts 5 mph9 km/h	80%	82%	0
Mon 4a	Cloudy	55°13° (likely 53°12° to 56°13°)	55°13°	0%	1 mph2 km/h from S, gusts 6 mph9 km/h	77%	83%	0
Mon 5a	Cloudy	54°12° (likely 53°12° to 55°13°)	54°12°	0%	1 mph2 km/h from S, gusts 5 mph9 km/h	80%	87%	0
Mon 6a	Cloudy	54°12° (likely 53°12° to 54°12°)	54°12°	0%	1 mph2 km/h from S, gusts 5 mph9 km/h	80%	88%	0
Mon 7a	Cloudy	52°11° (likely 52°11° to 54°12°)	52°11°	0%	1 mph2 km/h from S, gusts 5 mph8 km/h	86%	90%	0
Mon 8a	Cloudy	54°12° (likely 52°11° to 55°13°)	54°12°	0%	1 mph2 km/h from S, gusts 5 mph8 km/h	86%	97%	0
Mon 9a	Mostly cloudy	58°14° (likely 56°13° to 58°14°)	58°14°	0%	1 mph2 km/h from SW, gusts 6 mph9 km/h	77%	84%	1
Mon 10a	Cloudy	64°18° (likely 62°17° to 66°19°)	64°18°	0%	1 mph2 km/h from SW, gusts 9 mph15 km/h	65%	90%	2
Mon 11a	Cloudy	69°21° (likely 66°19° to 71°22°)	69°21°	0%	1 mph2 km/h from SW, gusts 10 mph16 km/h	57%	96%	3
Mon 12p	Cloudy	72°22° (likely 70°21° to 75°24°)	72°22°	0%	2 mph3 km/h from SW, gusts 9 mph15 km/h	49%	82%	3
Mon 1p	Mostly cloudy	75°24° (likely 72°22° to 76°24°)	75°24°	0%	2 mph3 km/h from SW, gusts 9 mph14 km/h	43%	70%	3
Mon 2p	Cloudy	77°25° (likely 72°22° to 77°25°)	77°25°	0%	2 mph3 km/h from SW, gusts 8 mph12 km/h	39%	76%	4

Days ahead

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

Today, Oct 24. Partly sunny. High 76°24°, low 50°10°. Typical 66°19° / 43°6°. Dry. Mostly agree.
1. Afternoon
  noon–6 PM
  Sunny, 75°24°
  Dry
2. Evening
  6 PM–midnight
  Partly cloudy, 62°17°
  Dry
3. Overnight
  midnight–6 AM
  Partly cloudy, 52°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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
72°22°–76°24°
Low, likely
45°7°–50°10°
Typical high / low
66°19° / 43°6°
Wind
6 mph10 km/h, gusts 12 mph19 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
  Partly sunny, 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 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
46°8°–52°11°
Typical high / low
66°19° / 43°6°
Wind
6 mph10 km/h, gusts 13 mph21 km/h
UV peak
4
Monday, Oct 26. Cloudy. High 78°26°, low 53°12°. Typical 65°18° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly cloudy, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 77°25°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 53°12°
  Dry
Official NWS forecast
Day: Partly sunny. High near 78, with temperatures falling to around 74 in the afternoon. South wind around 2 mph.
Night: Partly cloudy, with a low around 53.
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, gusts 13 mph21 km/h
UV peak
4
Tuesday, Oct 27. Cloudy. High 76°24°, low 53°12°. 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, 63°17°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 53°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, 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°–55°13°
Typical high / low
65°18° / 42°6°
Wind
9 mph14 km/h, gusts 20 mph31 km/h
UV peak
3
Wednesday, Oct 28. Partly sunny. High 80°27°, low 56°13°. Typical 64°18° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 78°26°
  Dry
3. Evening
  6 PM–midnight
  Clear, 65°18°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 55°13°
  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 56.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–80°27°
Low, likely
48°9°–56°13°
Typical high / low
64°18° / 42°6°
Wind
11 mph17 km/h, gusts 20 mph32 km/h
UV peak
4
Thursday, Oct 29. Mostly sunny. High 82°28°, low 56°13°. Typical 64°18° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 58°14°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 81°27°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 68°20°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 56°13°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 82.
Night: Mostly clear, with a low around 56.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
78°26°–82°28°
Low, likely
52°11°–57°14°
Typical high / low
64°18° / 41°5°
Wind
10 mph16 km/h, gusts 26 mph41 km/h
UV peak
4
Friday, Oct 30. Partly sunny. High 81°27°, low 59°15°. Typical 63°17° / 41°5°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 58°14°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 79°26°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 68°20°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 58°14°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 81.
Night: Mostly cloudy, with a low around 59.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
75°24°–81°27°
Low, likely
53°12°–59°15°
Typical high / low
63°17° / 41°5°
Wind
10 mph16 km/h, gusts 20 mph32 km/h
UV peak
3
Saturday, Oct 31. Drizzle. High 73°23°, low 60°16°. Typical 63°17° / 41°5°. Rain 0.16 in4.1 mm, 40% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 60°16°
  30% chance
2. Afternoon
  noon–6 PM
  Cloudy, 75°24°
  30% chance
3. Evening
  6 PM–midnight
  Drizzle, 67°20°
  40% chance · 0.06 in1.5 mm
4. Overnight
  midnight–6 AM
  Drizzle, 64°18°
  50% chance · 0.16 in4.2 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
70°21°–77°25°
Low, likely
57°14°–64°18°
Typical high / low
63°17° / 41°5°
Wind
16 mph26 km/h, gusts 25 mph40 km/h
UV peak
2
Sunday, Nov 1. Drizzle. High 75°24°, low 61°16°. Typical 62°17° / 40°4°. Rain 0.4 in10 mm, 50% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 66°19°
  40% chance · 0.05 in1.3 mm
2. Afternoon
  noon–6 PM
  Drizzle, 76°25°
  40% chance
3. Evening
  6 PM–midnight
  Drizzle, 69°21°
  40% chance · 0.09 in2.3 mm
4. Overnight
  midnight–6 AM
  Mostly clear, 53°12°
  40% chance · 0.03 in0.9 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
57°14°–63°17°
Typical high / low
62°17° / 40°4°
Wind
17 mph28 km/h, gusts 41 mph67 km/h
UV peak
3
Monday, Nov 2. Drizzle. High 64°18°, low 51°11°. Typical 62°17° / 40°4°. Rain 0.27 in6.9 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 53°12°
  40% chance · 0.05 in1.4 mm
2. Afternoon
  noon–6 PM
  Drizzle, 56°13°
  40% chance · 0.09 in2.3 mm
3. Evening
  6 PM–midnight
  Drizzle, 55°13°
  30% chance · 0.03 in0.7 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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
54°12°–74°23°
Low, likely
40°4°–66°19°
Typical high / low
62°17° / 40°4°
Wind
23 mph37 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 53°.
Rest of week
Highs 64–82°; chance of precipitation on Saturday, 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

11 mi

Below flood stage

Level: 7.8 ft
Flow: 168,000 cfs

Forecast peak 8.0 ft Sat 7 PM

Reading from Sat 2 PM · NWS gauge page

Missouri River at St. Charles

22 mi

Below flood stage

Level: 12.2 ft
Flow: 63,600 cfs

Forecast peak 12.1 ft Sat 7 PM

Reading from Sat 2 PM · NWS gauge page

Meramec River at Arnold

4.0 mi

Below flood stage

Level: 5.7 ft
Flow: 7,130 cfs

Reading from Sat 2 PM · NWS gauge page

Meramec River at Fenton

6.4 mi

Below flood stage

Level: 1.2 ft

Reading from Sat 2:15 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, 4:00 PM–8:00 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

Mehlville weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 51 min; Losing 2 min 21 s a day; shortest Dec 21, 1 h 23 min less
Golden hour: 5:34–6:27 PM; Morning 7:02–7:56 AM
Blue hour: 6:27–6:37 PM; Morning 6:52–7:02 AM; first light 6:52 AM

Stars tonight? Fair

Mostly clear 6:37–8 PM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 5:34 AM · rises 5:08 PM
Full moon: Oct 25
New moon: Nov 9

Looking northeast from Mehlville. The highest point on the skyline is about 3,300 ft, 24 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Mehlville, MO 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

Missouri River at St. Charles

Meramec River at Arnold

Meramec River at Fenton

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? Fair

Moon