Observed 6:35 AM CDT at KSUS

Weldon Spring Heights, MO weather

Foggy and 45°7°, 10°6° warmer than a typical Oct 24.

Forecasts agree

Now 45°7°

Fog

Wind: Calm; Light 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–5 PM · peak 4
Air quality: 66Moderate; Main pollutant: PM2.5 (fine particles)
Pressure: 30.32 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

Fog until 8 AM
Above 60°16° today by 10 AM
High 76°24° today at 4 PM
Below 60°16° tonight after 9 PM

This morningUp to 66°19° by 11 AM · Mostly cloudy
This afternoonUp to 76°24° by 4 PM · Partly cloudy
TonightDown to 50°10° by 4 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 51°11° 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	Fog	49°9° (likely 46°8° to 52°11°)	49°9°	0%	1 mph2 km/h from SE, gusts 4 mph7 km/h	83%	59%	0
Sat 8a	Mostly sunny	52°11° (likely 46°8° to 53°12°)	52°11°	0%	2 mph3 km/h from SE, gusts 4 mph6 km/h	83%	66%	0
Sat 9a	Mostly sunny	54°12° (likely 52°11° to 57°14°)	54°12°	0%	2 mph3 km/h from SE, gusts 6 mph9 km/h	83%	77%	1
Sat 10a	Cloudy	61°16° (likely 60°16° to 62°17°)	61°16°	0%	2 mph3 km/h from SE, gusts 9 mph14 km/h	67%	72%	2
Sat 11a	Partly sunny	66°19° (likely 65°18° to 67°19°)	66°19°	0%	3 mph5 km/h from SE, gusts 9 mph14 km/h	56%	74%	3
Sat 12p	Cloudy	70°21° (likely 69°21° to 71°22°)	70°21°	0%	3 mph5 km/h from SE, gusts 7 mph12 km/h	47%	79%	4
Sat 1p	Cloudy	73°23° (likely 72°22° to 73°23°)	73°23°	0%	3 mph5 km/h from SE, gusts 7 mph11 km/h	41%	80%	4
Sat 2p	Cloudy	74°23° (likely 73°23° to 75°24°)	74°23°	0%	3 mph5 km/h from SE, gusts 7 mph11 km/h	40%	60%	4
Sat 3p	Partly sunny	75°24° (likely 74°23° to 76°24°)	75°24°	0%	3 mph5 km/h from SE, gusts 7 mph12 km/h	38%	49%	4
Sat 4p	Sunny	76°24° (likely 73°23° to 76°24°)	76°24°	0%	3 mph5 km/h from SE, gusts 8 mph14 km/h	37%	9%	3
Sat 5p	Sunny	74°23° (likely 71°22° to 74°23°)	74°23°	0%	3 mph5 km/h from SE, gusts 10 mph16 km/h	41%	38%	1
Sat 6p	Clear	71°22° (likely 67°19° to 71°22°)	71°22°	0%	2 mph3 km/h from SE, gusts 9 mph14 km/h	46%	42%	0
Sat 7p	Partly cloudy	66°19° (likely 63°17° to 66°19°)	66°19°	0%	2 mph3 km/h from SE, gusts 9 mph15 km/h	54%	44%	0
Sat 8p	Partly cloudy	60°16° (likely 60°16° to 63°17°)	60°16°	0%	2 mph3 km/h from SE, gusts 9 mph14 km/h	67%	45%	0
Sat 9p	Partly cloudy	58°14° (likely 58°14° to 61°16°)	58°14°	0%	2 mph3 km/h from SE, gusts 8 mph13 km/h	72%	48%	0
Sat 10p	Partly cloudy	57°14° (likely 57°14° to 60°16°)	57°14°	0%	2 mph3 km/h from SE, gusts 8 mph13 km/h	72%	50%	0
Sat 11p	Partly cloudy	56°13° (likely 56°13° to 58°14°)	56°13°	0%	1 mph2 km/h from SE, gusts 8 mph13 km/h	74%	47%	0
Sun 12a	Cloudy	55°13° (likely 55°13° to 57°14°)	55°13°	0%	1 mph2 km/h from SE, gusts 7 mph11 km/h	74%	58%	0
Sun 1a	Partly cloudy	54°12° (likely 53°12° to 56°13°)	54°12°	0%	1 mph2 km/h from SE, gusts 5 mph9 km/h	77%	48%	0
Sun 2a	Cloudy	52°11° (likely 52°11° to 55°13°)	52°11°	0%	1 mph2 km/h from SE, gusts 5 mph8 km/h	80%	57%	0
Sun 3a	Mostly clear	52°11° (likely 51°11° to 55°13°)	52°11°	0%	1 mph2 km/h from SE, gusts 5 mph8 km/h	80%	54%	0
Sun 4a	Mostly clear	50°10° (likely 50°10° to 54°12°)	50°10°	0%	1 mph2 km/h from SE, gusts 5 mph8 km/h	86%	66%	0
Sun 5a	Partly cloudy	50°10° (likely 49°9° to 53°12°)	50°10°	0%	1 mph2 km/h from S, gusts 4 mph7 km/h	86%	43%	0
Sun 6a	Partly cloudy	49°9° (likely 48°9° to 52°11°)	49°9°	0%	1 mph2 km/h from SE, gusts 4 mph7 km/h	86%	70%	0
Sun 7a	Partly sunny	48°9° (likely 47°8° to 51°11°)	48°9°	0%	1 mph2 km/h from SE, gusts 4 mph7 km/h	89%	70%	0
Sun 8a	Partly sunny	50°10° (likely 47°8° to 53°12°)	50°10°	0%	1 mph2 km/h from SE, gusts 4 mph6 km/h	86%	71%	0
Sun 9a	Cloudy	55°13° (likely 52°11° to 57°14°)	55°13°	0%	1 mph2 km/h from S, gusts 4 mph6 km/h	83%	78%	1
Sun 10a	Partly sunny	63°17° (likely 62°17° to 63°17°)	63°17°	0%	1 mph2 km/h from S, gusts 7 mph12 km/h	65%	68%	2
Sun 11a	Partly sunny	68°20° (likely 67°19° to 69°21°)	68°20°	0%	1 mph2 km/h from S, gusts 7 mph11 km/h	57%	69%	3
Sun 12p	Cloudy	72°22° (likely 71°22° to 74°23°)	72°22°	0%	1 mph2 km/h from S, gusts 6 mph9 km/h	49%	78%	4
Sun 1p	Cloudy	75°24° (likely 74°23° to 76°24°)	75°24°	0%	1 mph2 km/h from S, gusts 5 mph8 km/h	43%	78%	4
Sun 2p	Cloudy	76°24° (likely 75°24° to 78°26°)	76°24°	0%	1 mph2 km/h from S, gusts 4 mph7 km/h	42%	79%	4
Sun 3p	Cloudy	77°25° (likely 76°24° to 79°26°)	77°25°	0%	1 mph2 km/h from SE, gusts 4 mph6 km/h	40%	79%	3
Sun 4p	Cloudy	78°26° (likely 76°24° to 78°26°)	78°26°	0%	1 mph2 km/h from SE, gusts 4 mph7 km/h	38%	79%	2
Sun 5p	Cloudy	76°24° (likely 73°23° to 77°25°)	76°24°	0%	1 mph2 km/h from SE, gusts 4 mph7 km/h	43%	79%	1
Sun 6p	Cloudy	73°23° (likely 69°21° to 73°23°)	73°23°	0%	1 mph2 km/h from SE, gusts 5 mph9 km/h	48%	80%	0
Sun 7p	Cloudy	68°20° (likely 66°19° to 68°20°)	68°20°	0%	1 mph2 km/h from SE, gusts 6 mph10 km/h	57%	78%	0
Sun 8p	Cloudy	62°17° (likely 62°17° to 66°19°)	62°17°	0%	1 mph2 km/h from SE, gusts 7 mph11 km/h	70%	76%	0
Sun 9p	Cloudy	60°16° (likely 60°16° to 63°17°)	60°16°	0%	1 mph2 km/h from SE, gusts 7 mph12 km/h	75%	77%	0
Sun 10p	Cloudy	59°15° (likely 59°15° to 63°17°)	59°15°	0%	1 mph2 km/h from SE, gusts 8 mph12 km/h	75%	75%	0
Sun 11p	Cloudy	58°14° (likely 57°14° to 62°17°)	58°14°	0%	1 mph2 km/h from S, gusts 7 mph10 km/h	77%	82%	0
Mon 12a	Cloudy	56°13° (likely 56°13° to 60°16°)	56°13°	0%	1 mph2 km/h from S, gusts 5 mph9 km/h	80%	86%	0
Mon 1a	Cloudy	55°13° (likely 55°13° to 60°16°)	55°13°	0%	1 mph2 km/h from S, gusts 6 mph10 km/h	83%	89%	0
Mon 2a	Cloudy	54°12° (likely 53°12° to 59°15°)	54°12°	0%	1 mph2 km/h from S, gusts 5 mph7 km/h	83%	90%	0
Mon 3a	Cloudy	53°12° (likely 53°12° to 59°15°)	53°12°	0%	0 mph0 km/h, gusts 5 mph9 km/h	86%	90%	0
Mon 4a	Cloudy	53°12° (likely 53°12° to 58°14°)	53°12°	0%	0 mph0 km/h, gusts 5 mph8 km/h	83%	88%	0
Mon 5a	Cloudy	51°11° (likely 51°11° to 58°14°)	51°11°	0%	0 mph0 km/h, gusts 5 mph8 km/h	86%	92%	0
Mon 6a	Cloudy	51°11° (likely 51°11° to 58°14°)	51°11°	0%	0 mph0 km/h, gusts 5 mph8 km/h	86%	96%	0

Days ahead

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

Today, Oct 24. Fog. High 76°24°, low 48°9°. Typical 66°19° / 42°6°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Mostly sunny, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 76°24°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 60°16°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 50°10°
  Dry
Official NWS forecast
Today: Patchy fog before 8am. Mostly sunny, with a high near 76. Southeast wind around 3 mph.
Tonight: Partly cloudy, with a low around 48. Southeast wind around 2 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
74°23°–76°24°
Low, likely
46°8°–51°11°
Typical high / low
66°19° / 42°6°
Wind
8 mph13 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 78°26°, low 51°11°. Typical 66°19° / 42°6°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 78°26°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 51°11°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 78. Southeast wind around 1 mph.
Night: Mostly cloudy, with a low around 51. South wind around 1 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
76°24°–79°26°
Low, likely
47°8°–51°11°
Typical high / low
66°19° / 42°6°
Wind
6 mph9 km/h, gusts 11 mph18 km/h
UV peak
4
Monday, Oct 26. Cloudy. High 77°25°, low 50°10°. Typical 65°18° / 41°5°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 56°13°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 75°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 77. South wind around 1 mph.
Night: Mostly cloudy, with a low around 50.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
75°24°–77°25°
Low, likely
50°10°–57°14°
Typical high / low
65°18° / 41°5°
Wind
7 mph10 km/h
UV peak
4
Tuesday, Oct 27. Cloudy. High 75°24°, low 51°11°. Typical 65°18° / 41°5°. 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
  Partly cloudy, 55°13°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly cloudy, with a high near 75.
Night: Mostly cloudy, with a low around 51.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
71°22°–75°24°
Low, likely
51°11°–56°13°
Typical high / low
65°18° / 41°5°
Wind
8 mph12 km/h, gusts 21 mph34 km/h
UV peak
3
Wednesday, Oct 28. Cloudy. High 79°26°, low 53°12°. Typical 64°18° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 56°13°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 77°25°
  Dry
3. Evening
  6 PM–midnight
  Clear, 66°19°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 58°15°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 79.
Night: Mostly clear, with a low around 53.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–79°26°
Low, likely
52°11°–57°14°
Typical high / low
64°18° / 41°5°
Wind
9 mph14 km/h, gusts 20 mph32 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 77°25°, low 51°11°. Typical 64°18° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 60°16°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 78°26°
  Dry
3. Evening
  6 PM–midnight
  Clear, 66°19°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 57°14°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 77.
Night: Partly cloudy, with a low around 51.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
76°24°–80°27°
Low, likely
51°11°–59°15°
Typical high / low
64°18° / 40°4°
Wind
10 mph16 km/h, gusts 28 mph44 km/h
UV peak
3
Friday, Oct 30. Partly sunny. High 76°24°, low 52°11°. Typical 64°18° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 59°15°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 78°26°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 67°19°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 61°16°
  20% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 76.
Night: A slight chance of rain showers after 1am. Mostly cloudy, with a low around 52. Chance of precipitation is 20%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–80°27°
Low, likely
52°11°–59°15°
Typical high / low
64°18° / 40°4°
Wind
7 mph12 km/h, gusts 19 mph30 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 73°23°, low 62°17°. Typical 63°17° / 40°4°. Rain 0.11 in2.8 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 64°18°
  30% chance
2. Afternoon
  noon–6 PM
  Cloudy, 74°24°
  30% chance
3. Evening
  6 PM–midnight
  Cloudy, 69°21°
  40% chance · 0.04 in1 mm
4. Overnight
  midnight–6 AM
  Cloudy, 66°19°
  50% chance · 0.11 in2.9 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°–81°27°
Low, likely
59°15°–65°18°
Typical high / low
63°17° / 40°4°
Wind
11 mph18 km/h, gusts 28 mph44 km/h
UV peak
1
Sunday, Nov 1. Drizzle. High 72°22°, low 63°17°. Typical 63°17° / 39°4°. Rain 0.48 in12 mm, 50% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 66°19°
  50% chance · 0.11 in2.8 mm
2. Afternoon
  noon–6 PM
  Drizzle, 69°21°
  40% chance · 0.09 in2.4 mm
3. Evening
  6 PM–midnight
  Drizzle, 66°19°
  40% chance · 0.05 in1.2 mm
4. Overnight
  midnight–6 AM
  Clear, 59°15°
  40% chance · 0.05 in1.2 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
68°20°–75°24°
Low, likely
60°16°–64°18°
Typical high / low
63°17° / 39°4°
Wind
20 mph32 km/h, gusts 39 mph63 km/h
Monday, Nov 2. Drizzle. High 66°19°, low 58°14°. Typical 62°17° / 39°4°. Rain 0.46 in12 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 60°16°
  40% chance · 0.15 in3.9 mm
2. Afternoon
  noon–6 PM
  Rain, 58°15°
  30% chance · 0.22 in5.5 mm
3. Evening
  6 PM–midnight
  Drizzle, 63°17°
  30% chance · 0.08 in2.1 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°–71°22°
Low, likely
47°8°–67°19°
Typical high / low
62°17° / 39°4°
Wind
20 mph32 km/h, gusts 41 mph66 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 76°, low 48°.
Tomorrow
Dry, high 78°, low 51°.
Monday
Dry, high 77°, low 50°.
Rest of week
Highs 66–79°; 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

Missouri River at St. Charles

13 mi

Below flood stage

Level: 12.3 ft
Flow: 64,600 cfs

Forecast peak 12.4 ft Sat 7 AM

Reading from Sat 5:30 AM · NWS gauge page

Missouri River at Washington

20 mi

Below flood stage

Level: 5.2 ft
Flow: 62,400 cfs

Forecast peak 5.3 ft Sat 7 AM

Reading from Sat 4:45 AM · NWS gauge page

Mississippi River at Winfield Lock and Dam 25

21 mi

Below flood stage

Level: 17.9 ft
Flow: 93,300 cfs

Forecast peak 18.0 ft Sat 7 AM

Reading from Sat 5:30 AM · NWS gauge page

Mississippi River at Grafton

23 mi

Below flood stage

Level: 15.6 ft
Flow: 144,000 cfs

Forecast peak 15.7 ft Sat 7 AM

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 85% less heating than a typical week.

This week 12Typical 85

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?

ST LOUIS SPIRIT OF ST LOUIS AP · official normals 1991–2020 · records 1987–2026

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°0° warmer than normal (daily mean temperature).

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

Weldon Spring Heights 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: 5:35–6:28 PM; Morning 7:04–7:58 AM
Blue hour: 6:28–6:39 PM; Morning 6:54–7:04 AM; first light 6:54 AM

Stars tonight? Poor

Clouds most of the night (about 52% cover).

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:36 AM · rises 5:09 PM
Full moon: Oct 25
New moon: Nov 9

Looking west from Weldon Spring Heights. A level horizon.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Weldon Spring Heights, MO weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Missouri River at St. Charles

Missouri River at Washington

Mississippi River at Winfield Lock and Dam 25

Mississippi River at Grafton

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