Observed 5:15 AM CDT at KCPS
St. Louis, MO weather
Clear and 46°8°, 11°6° warmer than a typical Oct 23.
Today: low 51°11° (likely 48°9° to 52°11°), high 77°25° (likely 73°23° to 77°25°).
Now 46°8°
Clear
- Wind
- Calm
- Up to 5 mph8 km/h through 6 PM
- Dew point
- 45°7°
- Comfortable · up to 53°12° by 11 AM
- Humidity
- 93%
- Air 46°8°, dew point 45°7° · fog or dew likely
- UV index
- 0Low
- Moderate 11 AM–4 PM · peak 4
- Air quality
- 78Moderate
- Main pollutant: PM2.5 (fine particles)
- Pressure
- 30.25 inHg1024 hPa
- Rising slowly · +0.02 inHg+0.7 hPa in 3 h
Next 2 hours
No precipitation expected in the next 2 hours.
From forecast models
Next 48 hours
This morningUp to 66°19° by 11 AM · Clear
This afternoonUp to 77°25° by 4 PM · Clear
TonightDown to 52°11° by 5 AM · Partly cloudy
Tomorrow morningUp to 66°19° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 76°24° by 4 PM · Mostly cloudy
Tomorrow nightDown to 51°11° by 5 AM · Partly cloudy
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Fri 6a | Clear | 51°11° (likely 48°9° to 52°11°) | 51°11° | 0% | 2 mph3 km/h from E, gusts 5 mph8 km/h | 93% | 3% | 0 |
| Fri 7a | Sunny | 50°10° (likely 48°9° to 52°11°) | 50°10° | 0% | 2 mph3 km/h from SE, gusts 5 mph8 km/h | 93% | 4% | 0 |
| Fri 8a | Sunny | 53°12° (likely 49°9° to 53°12°) | 53°12° | 0% | 2 mph3 km/h from SE, gusts 4 mph7 km/h | 86% | 2% | 0 |
| Fri 9a | Sunny | 55°13° (likely 54°12° to 58°14°) | 55°13° | 0% | 2 mph3 km/h from SE, gusts 6 mph9 km/h | 86% | 0% | 1 |
| Fri 10a | Sunny | 62°17° (likely 60°16° to 63°17°) | 62°17° | 0% | 2 mph3 km/h from SE, gusts 7 mph12 km/h | 70% | 0% | 2 |
| Fri 11a | Sunny | 66°19° (likely 65°18° to 68°20°) | 66°19° | 0% | 3 mph5 km/h from SE, gusts 8 mph13 km/h | 63% | 0% | 3 |
| Fri 12p | Sunny | 70°21° (likely 69°21° to 71°22°) | 70°21° | 0% | 3 mph5 km/h from SE, gusts 9 mph14 km/h | 53% | 0% | 4 |
| Fri 1p | Sunny | 73°23° (likely 71°22° to 74°23°) | 73°23° | 0% | 5 mph8 km/h from SE, gusts 11 mph17 km/h | 44% | 0% | 4 |
| Fri 2p | Sunny | 75°24° (likely 72°22° to 75°24°) | 75°24° | 0% | 5 mph8 km/h from SE, gusts 10 mph17 km/h | 41% | 0% | 4 |
| Fri 3p | Sunny | 75°24° (likely 73°23° to 75°24°) | 75°24° | 0% | 5 mph8 km/h from SE, gusts 9 mph15 km/h | 41% | 0% | 3 |
| Fri 4p | Sunny | 77°25° (likely 73°23° to 77°25°) | 77°25° | 0% | 5 mph8 km/h from SE, gusts 9 mph14 km/h | 39% | 0% | 2 |
| Fri 5p | Sunny | 75°24° (likely 72°22° to 75°24°) | 75°24° | 0% | 3 mph5 km/h from SE, gusts 10 mph16 km/h | 43% | 0% | 1 |
| Fri 6p | Clear | 72°22° (likely 67°19° to 72°22°) | 72°22° | 0% | 3 mph5 km/h from SE, gusts 10 mph16 km/h | 48% | 0% | 0 |
| Fri 7p | Clear | 68°20° (likely 64°18° to 68°20°) | 68°20° | 0% | 3 mph5 km/h from SE, gusts 9 mph14 km/h | 55% | 0% | 0 |
| Fri 8p | Clear | 63°17° (likely 62°17° to 63°17°) | 63°17° | 0% | 3 mph5 km/h from SE, gusts 9 mph15 km/h | 62% | 5% | 0 |
| Fri 9p | Clear | 61°16° (likely 60°16° to 62°17°) | 61°16° | 0% | 3 mph5 km/h from SE, gusts 9 mph15 km/h | 67% | 11% | 0 |
| Fri 10p | Clear | 59°15° (likely 58°14° to 60°16°) | 59°15° | 0% | 3 mph5 km/h from SE, gusts 11 mph18 km/h | 72% | 18% | 0 |
| Fri 11p | Clear | 58°14° (likely 58°14° to 59°15°) | 58°14° | 0% | 3 mph5 km/h from SE, gusts 11 mph17 km/h | 72% | 30% | 0 |
| Sat 12a | Clear | 57°14° (likely 56°13° to 59°15°) | 57°14° | 0% | 3 mph5 km/h from SE, gusts 10 mph17 km/h | 75% | 35% | 0 |
| Sat 1a | Cloudy | 56°13° (likely 55°13° to 58°14°) | 56°13° | 0% | 3 mph5 km/h from SE, gusts 9 mph14 km/h | 77% | 72% | 0 |
| Sat 2a | Mostly clear | 55°13° (likely 53°12° to 57°14°) | 55°13° | 0% | 2 mph3 km/h from SE, gusts 7 mph12 km/h | 77% | 59% | 0 |
| Sat 3a | Mostly clear | 54°12° (likely 52°11° to 55°13°) | 54°12° | 0% | 2 mph3 km/h from SE, gusts 6 mph9 km/h | 80% | 63% | 0 |
| Sat 4a | Mostly clear | 53°12° (likely 51°11° to 54°12°) | 53°12° | 0% | 2 mph3 km/h from SE, gusts 6 mph9 km/h | 80% | 61% | 0 |
| Sat 5a | Mostly clear | 52°11° (likely 50°10° to 53°12°) | 52°11° | 0% | 2 mph3 km/h from SE, gusts 5 mph8 km/h | 83% | 64% | 0 |
| Sat 6a | Cloudy | 51°11° (likely 49°9° to 52°11°) | 51°11° | 0% | 2 mph3 km/h from SE, gusts 5 mph9 km/h | 86% | 77% | 0 |
| Sat 7a | Cloudy | 51°11° (likely 49°9° to 52°11°) | 51°11° | 0% | 2 mph3 km/h from SE, gusts 6 mph9 km/h | 83% | 72% | 0 |
| Sat 8a | Cloudy | 52°11° (likely 48°9° to 53°12°) | 52°11° | 0% | 2 mph3 km/h from E, gusts 5 mph8 km/h | 86% | 78% | 0 |
| Sat 9a | Partly sunny | 56°13° (likely 53°12° to 57°14°) | 56°13° | 0% | 2 mph3 km/h from SE, gusts 5 mph8 km/h | 80% | 74% | 1 |
| Sat 10a | Cloudy | 62°17° (likely 59°15° to 62°17°) | 62°17° | 0% | 3 mph5 km/h from SE, gusts 9 mph14 km/h | 67% | 76% | 2 |
| Sat 11a | Cloudy | 66°19° (likely 64°18° to 66°19°) | 66°19° | 0% | 3 mph5 km/h from SE, gusts 9 mph14 km/h | 61% | 79% | 3 |
| Sat 12p | Partly sunny | 69°21° (likely 68°20° to 71°22°) | 69°21° | 0% | 3 mph5 km/h from SE, gusts 9 mph14 km/h | 53% | 73% | 3 |
| Sat 1p | Cloudy | 73°23° (likely 71°22° to 74°23°) | 73°23° | 0% | 5 mph8 km/h from SE, gusts 8 mph13 km/h | 43% | 79% | 4 |
| Sat 2p | Cloudy | 74°23° (likely 73°23° to 75°24°) | 74°23° | 0% | 3 mph5 km/h from SE, gusts 7 mph12 km/h | 40% | 77% | 4 |
| Sat 3p | Partly sunny | 75°24° (likely 74°23° to 76°24°) | 75°24° | 0% | 3 mph5 km/h from SE, gusts 8 mph12 km/h | 38% | 72% | 3 |
| Sat 4p | Partly sunny | 76°24° (likely 74°23° to 76°24°) | 76°24° | 0% | 3 mph5 km/h from SE, gusts 8 mph13 km/h | 36% | 56% | 2 |
| Sat 5p | Partly sunny | 74°23° (likely 72°22° to 74°23°) | 74°23° | 0% | 2 mph3 km/h from SE, gusts 9 mph14 km/h | 41% | 47% | 1 |
| Sat 6p | Partly cloudy | 71°22° (likely 67°19° to 71°22°) | 71°22° | 0% | 2 mph3 km/h from SE, gusts 8 mph14 km/h | 46% | 45% | 0 |
| Sat 7p | Partly cloudy | 67°19° (likely 65°18° to 67°19°) | 67°19° | 0% | 3 mph5 km/h from SE, gusts 7 mph11 km/h | 52% | 44% | 0 |
| Sat 8p | Clear | 63°17° (likely 63°17° to 64°18°) | 63°17° | 0% | 2 mph3 km/h from SE, gusts 7 mph11 km/h | 60% | 45% | 0 |
| Sat 9p | Mostly clear | 60°16° (likely 60°16° to 62°17°) | 60°16° | 0% | 2 mph3 km/h from SE, gusts 8 mph13 km/h | 67% | 49% | 0 |
| Sat 10p | Mostly clear | 59°15° (likely 59°15° to 61°16°) | 59°15° | 0% | 2 mph3 km/h from SE, gusts 9 mph14 km/h | 69% | 50% | 0 |
| Sat 11p | Mostly clear | 58°14° (likely 58°14° to 61°16°) | 58°14° | 0% | 2 mph3 km/h from SE, gusts 8 mph12 km/h | 72% | 57% | 0 |
| Sun 12a | Mostly clear | 57°14° (likely 57°14° to 60°16°) | 57°14° | 0% | 2 mph3 km/h from SE, gusts 7 mph11 km/h | 72% | 62% | 0 |
| Sun 1a | Cloudy | 56°13° (likely 55°13° to 60°16°) | 56°13° | 0% | 2 mph3 km/h from SE, gusts 7 mph11 km/h | 74% | 68% | 0 |
| Sun 2a | Partly cloudy | 55°13° (likely 53°12° to 63°17°) | 55°13° | 0% | 2 mph3 km/h from SE, gusts 5 mph8 km/h | 77% | 52% | 0 |
| Sun 3a | Partly cloudy | 54°12° (likely 52°11° to 63°17°) | 54°12° | 0% | 1 mph2 km/h from SE, gusts 5 mph8 km/h | 77% | 49% | 0 |
| Sun 4a | Partly cloudy | 53°12° (likely 51°11° to 62°17°) | 53°12° | 0% | 1 mph2 km/h from SE, gusts 4 mph7 km/h | 80% | 46% | 0 |
| Sun 5a | Partly cloudy | 51°11° (likely 49°9° to 61°16°) | 51°11° | 0% | 1 mph2 km/h from SE, gusts 4 mph6 km/h | 83% | 44% | 0 |
Days ahead
Today, Oct 23. Sunny. High 77°25°, low 51°11°. Typical 66°19° / 46°8°. Dry. Forecasts agree.
Morning
6 AM–noon
Sunny, 53°12°Dry
Afternoon
noon–6 PM
Sunny, 77°25°Dry
Evening
6 PM–midnight
Clear, 63°17°Dry
Overnight
midnight–6 AM
Mostly clear, 52°11°Dry
Official NWS forecast
Today: Sunny, with a high near 77. Southeast wind around 5 mph.
Tonight: Mostly clear, with a low around 51. Southeast wind around 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 73°23°–77°25°
- Low, likely
- 48°9°–52°11°
- Typical high / low
- 66°19° / 46°8°
- Wind
- 7 mph11 km/h, gusts 16 mph26 km/h
- UV peak
- 5
Tomorrow, Oct 24. Cloudy. High 76°24°, low 51°11°. Typical 66°19° / 46°8°. Dry. Forecasts agree.
Morning
6 AM–noon
Partly sunny, 52°11°Dry
Afternoon
noon–6 PM
Partly sunny, 76°24°Dry
Evening
6 PM–midnight
Mostly clear, 63°17°Dry
Overnight
midnight–6 AM
Partly cloudy, 51°11°Dry
Official NWS forecast
Day: Mostly sunny, with a high near 76. Southeast wind around 5 mph.
Night: Partly cloudy, with a low around 51. Southeast wind around 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 74°23°–76°24°
- Low, likely
- 48°9°–52°11°
- Typical high / low
- 66°19° / 46°8°
- Wind
- 6 mph10 km/h, gusts 15 mph23 km/h
- UV peak
- 4
Sunday, Oct 25. Partly sunny. High 78°26°, low 53°12°. Typical 65°18° / 46°8°. Dry. Forecasts agree.
Morning
6 AM–noon
Cloudy, 53°12°Dry
Afternoon
noon–6 PM
Cloudy, 78°25°Dry
Evening
6 PM–midnight
Cloudy, 66°19°Dry
Overnight
midnight–6 AM
Cloudy, 57°14°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 78. South wind around 2 mph.
Night: Mostly cloudy, with a low around 53.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 76°24°–79°26°
- Low, likely
- 49°9°–57°14°
- Typical high / low
- 65°18° / 46°8°
- Wind
- 5 mph8 km/h, gusts 10 mph17 km/h
- UV peak
- 4
Monday, Oct 26. Cloudy. High 77°25°, low 53°12°. Typical 65°18° / 45°7°. Dry. Forecasts agree.
Morning
6 AM–noon
Cloudy, 58°14°Dry
Afternoon
noon–6 PM
Cloudy, 76°25°Dry
Evening
6 PM–midnight
Cloudy, 66°19°Dry
Overnight
midnight–6 AM
Cloudy, 56°13°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 77.
Night: Mostly cloudy, with a low around 53.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 76°24°–77°25°
- Low, likely
- 53°12°–60°16°
- Typical high / low
- 65°18° / 45°7°
- Wind
- 6 mph9 km/h, gusts 13 mph21 km/h
- UV peak
- 3
Tuesday, Oct 27. Cloudy. High 75°24°, low 53°12°. Typical 64°18° / 45°7°. Dry. Forecasts agree.
Morning
6 AM–noon
Cloudy, 56°13°Dry
Afternoon
noon–6 PM
Cloudy, 73°23°Dry
Evening
6 PM–midnight
Cloudy, 65°18°Dry
Overnight
midnight–6 AM
Cloudy, 57°14°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 53.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 73°23°–75°24°
- Low, likely
- 50°10°–59°15°
- Typical high / low
- 64°18° / 45°7°
- Wind
- 7 mph11 km/h, gusts 21 mph34 km/h
- UV peak
- 3
Wednesday, Oct 28. Partly sunny. High 76°24°, low 54°12°. Typical 64°18° / 44°7°. Dry. Forecasts agree.
Morning
6 AM–noon
Sunny, 57°14°Dry
Afternoon
noon–6 PM
Sunny, 77°25°Dry
Evening
6 PM–midnight
Clear, 67°20°Dry
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 76.
Night: Mostly clear, with a low around 54.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 76°24°–78°26°
- Low, likely
- 51°11°–59°15°
- Typical high / low
- 64°18° / 44°7°
- Wind
- 9 mph14 km/h, gusts 22 mph35 km/h
- UV peak
- 4
Thursday, Oct 29. Partly sunny. High 76°24°, low 52°11°. Typical 64°18° / 44°7°. Dry. Forecasts differ.
Morning
6 AM–noon
Cloudy, 60°15°Dry
Afternoon
noon–6 PM
Sunny, 74°23°Dry
Evening
6 PM–midnight
Cloudy, 66°19°Dry
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 76.
Night: Partly cloudy, with a low around 52.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 70°21°–78°26°
- Low, likely
- 52°11°–61°16°
- Typical high / low
- 64°18° / 44°7°
- Wind
- 12 mph19 km/h, gusts 27 mph44 km/h
- UV peak
- 4
Friday, Oct 30. Drizzle. High 69°21°, low 53°12°. Typical 63°17° / 44°7°. Rain 0.07 in1.8 mm, 10% chance. Forecasts differ.
Morning
6 AM–noon
Sunny, 57°14°Dry
Afternoon
noon–6 PM
Sunny, 66°19°Dry
Evening
6 PM–midnight
Drizzle, 59°15°Dry
Overnight
midnight–6 AM
Drizzle, 54°12°Dry
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
- 63°17°–73°23°
- Low, likely
- 45°7°–60°16°
- Typical high / low
- 63°17° / 44°7°
- Wind
- 9 mph15 km/h, gusts 34 mph54 km/h
Saturday, Oct 31. Cloudy. High 67°19°, low 54°12°. Typical 63°17° / 43°6°. Rain 0.24 in6.1 mm, 30% chance. Mostly agree.
Morning
6 AM–noon
Drizzle, 55°13°30% chance · 0.08 in2.1 mm
Afternoon
noon–6 PM
Drizzle, 66°19°30% chance · 0.04 in1.1 mm
Evening
6 PM–midnight
Cloudy, 63°17°30% chance
Overnight
midnight–6 AM
Cloudy, 56°13°30% chance
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
- 63°17°–69°21°
- Low, likely
- 47°8°–60°16°
- Typical high / low
- 63°17° / 43°6°
- Wind
- 10 mph16 km/h, gusts 31 mph49 km/h
Sunday, Nov 1. Drizzle. High 67°19°, low 54°12°. Typical 62°17° / 43°6°. Rain 0.18 in4.6 mm, 30% chance. Forecasts differ.
Morning
6 AM–noon
Drizzle, 56°13°30% chance · 0.01 in0.3 mm
Afternoon
noon–6 PM
Cloudy, 65°19°30% chance
Evening
6 PM–midnight
Cloudy, 57°14°30% chance
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°–73°23°
- Low, likely
- 48°9°–60°16°
- Typical high / low
- 62°17° / 43°6°
- Wind
- 12 mph19 km/h, gusts 21 mph33 km/h
- UV peak
- 2
The outlook
Today
Dry, high 77°, low 51°.
Tomorrow
Dry, high 76°, low 51°.
Sunday
Dry, high 78°, low 53°.
Rest of week
Mostly dry, highs 67–77°.
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
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.
Heating degree days, base 65°F
Comfort
Dry air outside (dew point 45°F).
Open the windows?
Today, 10:00 AM–9:00 PM
Good stretch to open the windows.
Is this typical?
Oct 23, today vs a typical year
Today’s expected high is 11°6° warmer than typical.
- Normal high / low
- 66°19° / 46°8°
- Forecast high / low
- 77°25° / 51°11°
- Record high
- 86°30° in 1939
- Record low
- 28°−2° in 1981
Last 7 days vs normal
On average 0° colder than normal (daily mean temperature).
- −9°−5°SatOct 17
- −4°−2°SunOct 18
- −1°MonOct 19
- +3°+2°TueOct 20
- +5°+3°WedOct 21
- +6°+3°ThuOct 22
- —FriOct 23
St. Louis weather by month: normals, records, snow and freeze dates
Sun & moon
Sun
Sunrise 7:18 AM, sunset 6:11 PM.
- Daylight
- 10 h 53 min
- Losing 2 min 16 s a day; shortest Dec 21, 1 h 25 min less
- Golden hour
- 5:35–6:28 PM
- Morning 7:01–7:55 AM
- Blue hour
- 6:28–6:38 PM
- Morning 6:51–7:01 AM; first light 6:51 AM
Stars tonight? Unknown
Cloud forecast not available for tonight.
Moon
Waxing gibbous
91% lit · growing
- Today
- sets 4:27 AM · rises 4:42 PM
- Full moon
- Oct 25
- New moon
- Nov 9
