Observed 10:54 AM CDT at KSUS

Weldon Spring, MO weather

Sunny and 69°21°, 10°6° warmer than a typical Oct 24.

Mostly agree

Now 69°21°

Sunny

Wind: 6 mph9 km/h; From the south. Up to 6 mph10 km/h through 11 PM
Dew point: 45°7°; Comfortable
UV index: 3Moderate; Moderate until 4 PM · peak 4
Air quality: 63Moderate; Main pollutant: PM2.5 (fine particles)
Pressure: 30.36 inHg1028 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

About the same as this time yesterday (69°21° then, 69°21° now)

Good hours for

High 75°24° today at 3 PM
Below 60°16° tonight after 9 PM
Low 49°9° tomorrow at 6 AM
Above 60°16° tomorrow by 10 AM

This afternoonUp to 75°24° by 3 PM · Partly cloudy
TonightDown to 50°10° by 5 AM · Partly cloudy
Tomorrow morningUp to 68°20° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 77°25° by 2 PM · Mostly cloudy
Tomorrow nightDown to 52°11° by 5 AM · Mostly cloudy
Monday morningUp to 64°18° by 10 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 11a	Partly sunny	67°19° (likely 63°17° to 67°19°)	67°19°	0%	3 mph5 km/h from SE, gusts 8 mph13 km/h	54%	52%	3
Sat 12p	Partly sunny	71°22° (likely 67°19° to 71°22°)	71°22°	0%	3 mph5 km/h from SE, gusts 7 mph11 km/h	46%	63%	4
Sat 1p	Cloudy	73°23° (likely 70°21° to 73°23°)	73°23°	0%	5 mph8 km/h from SE, gusts 6 mph10 km/h	41%	73%	4
Sat 2p	Cloudy	74°23° (likely 72°22° to 75°24°)	74°23°	0%	5 mph8 km/h from SE, gusts 7 mph11 km/h	38%	71%	4
Sat 3p	Partly sunny	75°24° (likely 72°22° to 75°24°)	75°24°	0%	6 mph10 km/h from SE, gusts 8 mph12 km/h	37%	31%	3
Sat 4p	Mostly sunny	75°24° (likely 72°22° to 75°24°)	75°24°	0%	6 mph10 km/h from SE, gusts 9 mph14 km/h	37%	24%	2
Sat 5p	Cloudy	73°23° (likely 70°21° to 73°23°)	73°23°	0%	3 mph5 km/h from SE, gusts 8 mph13 km/h	41%	64%	1
Sat 6p	Partly cloudy	69°21° (likely 65°18° to 69°21°)	69°21°	0%	3 mph5 km/h from SE, gusts 8 mph13 km/h	47%	51%	0
Sat 7p	Partly cloudy	63°17° (likely 62°17° to 63°17°)	63°17°	0%	3 mph5 km/h from SE, gusts 8 mph12 km/h	60%	45%	0
Sat 8p	Partly cloudy	60°16° (likely 60°16° to 61°16°)	60°16°	0%	2 mph3 km/h from SE, gusts 8 mph13 km/h	67%	47%	0
Sat 9p	Partly cloudy	59°15° (likely 58°14° to 60°16°)	59°15°	0%	2 mph3 km/h from SE, gusts 9 mph14 km/h	69%	29%	0
Sat 10p	Clear	57°14° (likely 57°14° to 59°15°)	57°14°	0%	2 mph3 km/h from SE, gusts 9 mph14 km/h	75%	42%	0
Sat 11p	Partly cloudy	56°13° (likely 56°13° to 57°14°)	56°13°	0%	2 mph3 km/h from SE, gusts 8 mph13 km/h	74%	46%	0
Sun 12a	Partly cloudy	55°13° (likely 54°12° to 56°13°)	55°13°	0%	2 mph3 km/h from SE, gusts 6 mph10 km/h	77%	23%	0
Sun 1a	Mostly clear	54°12° (likely 53°12° to 55°13°)	54°12°	0%	2 mph3 km/h from SE, gusts 5 mph8 km/h	77%	38%	0
Sun 2a	Cloudy	52°11° (likely 51°11° to 54°12°)	52°11°	0%	1 mph2 km/h from SE, gusts 5 mph7 km/h	83%	58%	0
Sun 3a	Cloudy	52°11° (likely 50°10° to 53°12°)	52°11°	0%	1 mph2 km/h from SE, gusts 5 mph8 km/h	83%	63%	0
Sun 4a	Partly cloudy	51°11° (likely 48°9° to 53°12°)	51°11°	0%	1 mph2 km/h from SE, gusts 4 mph7 km/h	83%	48%	0
Sun 5a	Cloudy	50°10° (likely 48°9° to 52°11°)	50°10°	0%	1 mph2 km/h from SE, gusts 4 mph7 km/h	86%	57%	0
Sun 6a	Cloudy	49°9° (likely 47°8° to 51°11°)	49°9°	0%	1 mph2 km/h from SE, gusts 4 mph7 km/h	89%	58%	0
Sun 7a	Cloudy	49°9° (likely 46°8° to 51°11°)	49°9°	0%	1 mph2 km/h from SE, gusts 4 mph6 km/h	86%	59%	0
Sun 8a	Cloudy	50°10° (likely 46°8° to 53°12°)	50°10°	0%	1 mph2 km/h from SE, gusts 4 mph6 km/h	86%	62%	0
Sun 9a	Partly sunny	56°13° (likely 52°11° to 57°14°)	56°13°	0%	1 mph2 km/h from SE, gusts 4 mph6 km/h	77%	73%	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%	70%	2
Sun 11a	Cloudy	68°20° (likely 66°19° to 70°21°)	68°20°	0%	3 mph5 km/h from S, gusts 8 mph13 km/h	55%	76%	3
Sun 12p	Cloudy	72°22° (likely 70°21° to 75°24°)	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 76°24°)	75°24°	0%	3 mph5 km/h from S, gusts 5 mph8 km/h	40%	80%	4
Sun 2p	Cloudy	77°25° (likely 75°24° to 78°26°)	77°25°	0%	3 mph5 km/h from SE, gusts 5 mph8 km/h	37%	81%	4
Sun 3p	Cloudy	77°25° (likely 75°24° to 79°26°)	77°25°	0%	3 mph5 km/h from SE, gusts 5 mph8 km/h	36%	82%	3
Sun 4p	Cloudy	77°25° (likely 75°24° to 79°26°)	77°25°	0%	3 mph5 km/h from SE, gusts 5 mph8 km/h	36%	81%	2
Sun 5p	Cloudy	75°24° (likely 73°23° to 77°25°)	75°24°	0%	1 mph2 km/h from SE, gusts 4 mph7 km/h	40%	80%	1
Sun 6p	Cloudy	71°22° (likely 68°20° to 72°22°)	71°22°	0%	2 mph3 km/h from SE, gusts 5 mph7 km/h	47%	79%	0
Sun 7p	Cloudy	66°19° (likely 65°18° to 67°19°)	66°19°	0%	2 mph3 km/h from SE, gusts 5 mph9 km/h	56%	80%	0
Sun 8p	Cloudy	62°17° (likely 62°17° to 65°18°)	62°17°	0%	1 mph2 km/h from SE, gusts 5 mph9 km/h	65%	81%	0
Sun 9p	Cloudy	60°16° (likely 60°16° to 63°17°)	60°16°	0%	1 mph2 km/h from SE, gusts 6 mph10 km/h	72%	81%	0
Sun 10p	Cloudy	59°15° (likely 59°15° to 61°16°)	59°15°	0%	1 mph2 km/h from SE, gusts 6 mph10 km/h	75%	81%	0
Sun 11p	Cloudy	58°14° (likely 58°14° to 60°16°)	58°14°	0%	1 mph2 km/h from S, gusts 6 mph9 km/h	75%	81%	0
Mon 12a	Cloudy	57°14° (likely 57°14° to 59°15°)	57°14°	0%	1 mph2 km/h from S, gusts 6 mph9 km/h	77%	81%	0
Mon 1a	Cloudy	56°13° (likely 55°13° to 58°14°)	56°13°	0%	1 mph2 km/h from S, gusts 6 mph10 km/h	77%	81%	0
Mon 2a	Cloudy	54°12° (likely 54°12° to 57°14°)	54°12°	0%	1 mph2 km/h from S, gusts 6 mph10 km/h	80%	81%	0
Mon 3a	Cloudy	53°12° (likely 52°11° to 56°13°)	53°12°	0%	1 mph2 km/h from S, gusts 7 mph11 km/h	83%	82%	0
Mon 4a	Cloudy	53°12° (likely 51°11° to 56°13°)	53°12°	0%	1 mph2 km/h from S, gusts 7 mph11 km/h	83%	83%	0
Mon 5a	Cloudy	52°11° (likely 52°11° to 56°13°)	52°11°	0%	1 mph2 km/h from S, gusts 6 mph10 km/h	86%	85%	0
Mon 6a	Cloudy	51°11° (likely 51°11° to 56°13°)	51°11°	0%	1 mph2 km/h from S, gusts 6 mph10 km/h	86%	86%	0
Mon 7a	Cloudy	51°11° (likely 51°11° to 56°13°)	51°11°	0%	1 mph2 km/h from S, gusts 5 mph9 km/h	86%	91%	0
Mon 8a	Cloudy	51°11° (likely 51°11° to 58°14°)	51°11°	0%	1 mph2 km/h from SW, gusts 5 mph7 km/h	93%	96%	0
Mon 9a	Mostly cloudy	56°13° (likely 56°13° to 62°17°)	56°13°	0%	1 mph2 km/h from SW, gusts 5 mph8 km/h	83%	75%	1
Mon 10a	Cloudy	64°18° (likely 62°17° to 67°19°)	64°18°	0%	1 mph2 km/h from SW, gusts 8 mph12 km/h	65%	92%	2

Days ahead

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

Today, Oct 24. Partly sunny. High 76°24°, low 48°9°. Typical 66°19° / 46°8°. Dry. Mostly agree.
1. Afternoon
  noon–6 PM
  Partly sunny, 75°24°
  Dry
2. Evening
  6 PM–midnight
  Partly cloudy, 60°16°
  Dry
3. Overnight
  midnight–6 AM
  Cloudy, 50°10°
  Dry
Official NWS forecast
Today: Mostly sunny, with a high near 76. Southeast wind around 6 mph.
Tonight: Partly cloudy, with a low around 48. 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° / 46°8°
Wind
7 mph11 km/h, gusts 13 mph20 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 78°26°, low 51°11°. Typical 65°18° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 50°10°
  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, 52°11°
  Dry
Official NWS forecast
Day: Partly sunny, with a high near 78. Southeast wind around 3 mph.
Night: Mostly cloudy, with a low around 51. South wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–79°26°
Low, likely
46°8°–51°11°
Typical high / low
65°18° / 46°8°
Wind
7 mph10 km/h
UV peak
4
Monday, Oct 26. Cloudy. High 77°25°, low 51°11°. Typical 65°18° / 45°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly cloudy, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 75°24°
  Dry
3. Evening
  6 PM–midnight
  Clear, 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. High near 77, with temperatures falling to around 73 in the afternoon. South wind around 2 mph.
Night: Partly cloudy, with a low around 51.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–77°25°
Low, likely
51°11°–55°13°
Typical high / low
65°18° / 45°7°
Wind
7 mph10 km/h
UV peak
4
Tuesday, Oct 27. Cloudy. High 75°24°, low 52°11°. Typical 64°18° / 45°7°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 72°22°
  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: Partly sunny, with a high near 75.
Night: Mostly cloudy, with a low around 52.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
71°22°–75°24°
Low, likely
52°11°–56°13°
Typical high / low
64°18° / 45°7°
Wind
8 mph13 km/h, gusts 21 mph34 km/h
UV peak
3
Wednesday, Oct 28. Partly sunny. High 78°26°, low 53°12°. Typical 64°18° / 44°7°. 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, 65°19°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 56°13°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 78.
Night: Mostly clear, with a low around 53.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–78°26°
Low, likely
51°11°–56°13°
Typical high / low
64°18° / 44°7°
Wind
9 mph14 km/h, gusts 20 mph32 km/h
UV peak
4
Thursday, Oct 29. Mostly sunny. High 77°25°, low 51°11°. Typical 64°18° / 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 59°15°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 80°26°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 68°20°
  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
77°25°–80°27°
Low, likely
51°11°–59°15°
Typical high / low
64°18° / 44°7°
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 63°17° / 44°7°. 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, 68°20°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 60°15°
  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%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
75°24°–81°27°
Low, likely
52°11°–59°15°
Typical high / low
63°17° / 44°7°
Wind
8 mph13 km/h, gusts 19 mph30 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 73°23°, low 62°17°. Typical 63°17° / 43°6°. Rain 0.13 in3.3 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 61°16°
  30% chance
2. Afternoon
  noon–6 PM
  Cloudy, 76°24°
  30% chance
3. Evening
  6 PM–midnight
  Cloudy, 69°21°
  40% chance · 0.05 in1.2 mm
4. Overnight
  midnight–6 AM
  Cloudy, 66°19°
  50% chance · 0.11 in2.8 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°–81°27°
Low, likely
59°15°–64°18°
Typical high / low
63°17° / 43°6°
Wind
11 mph18 km/h, gusts 28 mph44 km/h
UV peak
1
Sunday, Nov 1. Drizzle. High 72°22°, low 62°17°. Typical 62°17° / 43°6°. Rain 0.46 in12 mm, 50% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 66°19°
  50% chance · 0.1 in2.5 mm
2. Afternoon
  noon–6 PM
  Drizzle, 70°21°
  50% chance · 0.09 in2.4 mm
3. Evening
  6 PM–midnight
  Drizzle, 66°19°
  40% chance · 0.05 in1.3 mm
4. Overnight
  midnight–6 AM
  Clear, 59°15°
  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
68°20°–76°24°
Low, likely
59°15°–64°18°
Typical high / low
62°17° / 43°6°
Wind
20 mph32 km/h, gusts 39 mph63 km/h
Monday, Nov 2. Drizzle. High 64°18°, low 56°13°. Typical 62°17° / 42°6°. Rain 0.44 in11 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 60°16°
  40% chance · 0.17 in4.3 mm
2. Afternoon
  noon–6 PM
  Drizzle, 59°15°
  40% chance · 0.22 in5.6 mm
3. Evening
  6 PM–midnight
  Drizzle, 63°17°
  30% chance · 0.09 in2.2 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.
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° / 42°6°
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 51°.
Rest of week
Highs 64–78°; 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

11 mi

Below flood stage

Level: 12.2 ft
Flow: 63,700 cfs

Forecast peak 12.2 ft Sat 1 PM

Reading from Sat 10:30 AM · NWS gauge page

Mississippi River at Winfield Lock and Dam 25

20 mi

Below flood stage

Level: 17.9 ft
Flow: 93,400 cfs

Forecast peak 17.9 ft Sat 1 PM

Reading from Sat 10:30 AM · NWS gauge page

Mississippi River at Grafton

22 mi

Below flood stage

Level: 15.6 ft
Flow: 147,000 cfs

Forecast peak 15.6 ft Sat 1 PM

Reading from Sat 10:30 AM · NWS gauge page

Missouri River at Washington

22 mi

Below flood stage

Level: 5.2 ft
Flow: 61,900 cfs

Forecast peak 5.1 ft Sat 1 PM

Reading from Sat 9:45 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 13Typical 73

Heating degree days, base 65°F

Comfort

Dry air outside (dew point 45°F).

Open the windows?

Today, 12:00 PM–8:00 PM

Good stretch to open the windows.

Is this typical?

St. Louis Lambert International Airport · official normals 1991–2020 · records 1874–2026

Oct 24, today vs a typical year

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

Last 7 days vs normal

On average 3°1° warmer than normal (daily mean temperature).

−4°−2°SunOct 18
−1°MonOct 19
+3°+2°TueOct 20
+5°+3°WedOct 21
+6°+3°ThuOct 22
+7°+4°FriOct 23
—SatOct 24

Weldon Spring 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: 5:35–6:28 PM; Morning 7:04–7:57 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 47% cover).

Moon

Waxing gibbous

97% lit · growing

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

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

Weldon Spring, 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

Mississippi River at Winfield Lock and Dam 25

Mississippi River at Grafton

Missouri River at Washington

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