Mississippi River at St. Louis
22 mi- Level
- 7.1 ft
- Flow
- 161,000 cfs
Forecast peak 7.8 ft Sun 1 AM
Reading from Sat 7:30 PM · NWS gauge page
Observed 8:55 PM CDT at KSTL
Imperial, MO weather
Clear and 61°16°.
Today: low 48°9° (likely 44°7° to 48°9°), high 75°24° (likely 75°24° to 76°24°).
Now 61°16°
Clear
- Wind
- Calm
- Light through 9 AM
- Dew point
- 46°8°
- Comfortable
- UV tomorrow
- 4Moderate
- Moderate 11 AM–4 PM · peak 4
- Pressure
- 30.35 inHg1028 hPa
- Rising slowly · +0.03 inHg+0.9 hPa in 3 h
Next 2 hours
No precipitation expected in the next 2 hours.
From forecast models
Next 48 hours
Good hours for
TonightDown to 49°9° by 5 AM · Partly cloudy
Tomorrow morningUp to 69°21° by 11 AM · Partly cloudy
Tomorrow afternoonUp to 78°26° by 4 PM · Mostly cloudy
Tomorrow nightDown to 52°11° by 5 AM · Mostly cloudy
Monday morningUp to 69°21° by 11 AM · Mostly cloudy
Monday afternoonUp to 77°25° by 2 PM · Mostly cloudy
Monday nightDown to 62°17° by 8 PM · Partly cloudy
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 9p | Clear | 59°15° (likely 58°14° to 61°16°) | 59°15° | 0% | 1 mph2 km/h from S, gusts 4 mph6 km/h | 68% | 20% | 0 |
| Sat 10p | Clear | 56°13° (likely 56°13° to 59°15°) | 56°13° | 0% | 1 mph2 km/h from SE, gusts 3 mph5 km/h | 74% | 13% | 0 |
| Sat 11p | Partly cloudy | 55°13° (likely 54°12° to 57°14°) | 55°13° | 0% | 1 mph2 km/h from S, gusts 3 mph4 km/h | 74% | 16% | 0 |
| Sun 12a | Clear | 53°12° (likely 53°12° to 57°14°) | 53°12° | 0% | 1 mph2 km/h from S, gusts 3 mph5 km/h | 80% | 13% | 0 |
| Sun 1a | Partly cloudy | 52°11° (likely 52°11° to 55°13°) | 52°11° | 0% | 1 mph2 km/h from S, gusts 2 mph4 km/h | 83% | 53% | 0 |
| Sun 2a | Partly cloudy | 51°11° (likely 50°10° to 54°12°) | 51°11° | 0% | 1 mph2 km/h from S, gusts 2 mph4 km/h | 83% | 49% | 0 |
| Sun 3a | Partly cloudy | 50°10° (likely 49°9° to 53°12°) | 50°10° | 0% | 1 mph2 km/h from SE, gusts 2 mph4 km/h | 86% | 52% | 0 |
| Sun 4a | Partly cloudy | 50°10° (likely 49°9° to 52°11°) | 50°10° | 0% | 1 mph2 km/h from SE, gusts 3 mph4 km/h | 86% | 38% | 0 |
| Sun 5a | Partly cloudy | 49°9° (likely 49°9° to 51°11°) | 49°9° | 0% | 1 mph2 km/h from SE, gusts 3 mph4 km/h | 89% | 32% | 0 |
| Sun 6a | Cloudy | 48°9° (likely 48°9° to 50°10°) | 48°9° | 0% | 1 mph2 km/h from S, gusts 2 mph3 km/h | 89% | 58% | 0 |
| Sun 7a | Cloudy | 48°9° (likely 47°8° to 50°10°) | 48°9° | 0% | 0 mph0 km/h, gusts 2 mph4 km/h | 89% | 63% | 0 |
| Sun 8a | Partly sunny | 49°9° (likely 47°8° to 52°11°) | 49°9° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 89% | 58% | 0 |
| Sun 9a | Partly sunny | 55°13° (likely 53°12° to 57°14°) | 55°13° | 0% | 1 mph2 km/h from S, gusts 5 mph8 km/h | 80% | 66% | 1 |
| Sun 10a | Partly sunny | 63°17° (likely 61°16° to 65°18°) | 63°17° | 0% | 1 mph2 km/h from S, gusts 8 mph12 km/h | 65% | 33% | 2 |
| Sun 11a | Partly sunny | 69°21° (likely 66°19° to 73°23°) | 69°21° | 0% | 2 mph3 km/h from S, gusts 7 mph12 km/h | 53% | 74% | 3 |
| Sun 12p | Cloudy | 73°23° (likely 71°22° to 77°25°) | 73°23° | 0% | 2 mph3 km/h from S, gusts 6 mph10 km/h | 44% | 78% | 4 |
| Sun 1p | Cloudy | 76°24° (likely 75°24° to 79°26°) | 76°24° | 0% | 2 mph3 km/h from SE, gusts 4 mph6 km/h | 39% | 81% | 4 |
| Sun 2p | Cloudy | 77°25° (likely 76°24° to 80°27°) | 77°25° | 0% | 3 mph5 km/h from SE, gusts 3 mph5 km/h | 37% | 81% | 4 |
| Sun 3p | Cloudy | 77°25° (likely 77°25° to 81°27°) | 77°25° | 0% | 3 mph5 km/h from SE, gusts 4 mph6 km/h | 37% | 81% | 4 |
| Sun 4p | Cloudy | 78°26° (likely 76°24° to 80°27°) | 78°26° | 0% | 3 mph5 km/h from SE, gusts 5 mph8 km/h | 35% | 80% | 2 |
| Sun 5p | Cloudy | 76°24° (likely 74°23° to 79°26°) | 76°24° | 0% | 1 mph2 km/h from SE, gusts 6 mph10 km/h | 40% | 70% | 1 |
| Sun 6p | Cloudy | 72°22° (likely 69°21° to 73°23°) | 72°22° | 0% | 2 mph3 km/h from E, gusts 6 mph9 km/h | 46% | 79% | 0 |
| Sun 7p | Cloudy | 66°19° (likely 65°18° to 69°21°) | 66°19° | 0% | 2 mph3 km/h from SE, gusts 6 mph10 km/h | 58% | 80% | 0 |
| Sun 8p | Cloudy | 62°17° (likely 62°17° to 66°19°) | 62°17° | 0% | 1 mph2 km/h from SE, gusts 5 mph7 km/h | 67% | 81% | 0 |
| Sun 9p | Cloudy | 60°16° (likely 60°16° to 65°18°) | 60°16° | 0% | 1 mph2 km/h from SE, gusts 4 mph6 km/h | 69% | 78% | 0 |
| Sun 10p | Cloudy | 58°14° (likely 58°14° to 63°17°) | 58°14° | 0% | 1 mph2 km/h from S, gusts 6 mph10 km/h | 72% | 80% | 0 |
| Sun 11p | Cloudy | 57°14° (likely 57°14° to 60°16°) | 57°14° | 0% | 1 mph2 km/h from S, gusts 6 mph10 km/h | 75% | 82% | 0 |
| Mon 12a | Cloudy | 56°13° (likely 55°13° to 60°16°) | 56°13° | 0% | 1 mph2 km/h from S, gusts 5 mph8 km/h | 77% | 82% | 0 |
| Mon 1a | Cloudy | 55°13° (likely 55°13° to 58°14°) | 55°13° | 0% | 1 mph2 km/h from S, gusts 5 mph8 km/h | 77% | 82% | 0 |
| Mon 2a | Cloudy | 54°12° (likely 54°12° to 58°14°) | 54°12° | 0% | 1 mph2 km/h from S, gusts 5 mph8 km/h | 80% | 82% | 0 |
| Mon 3a | Cloudy | 53°12° (likely 53°12° to 57°14°) | 53°12° | 0% | 1 mph2 km/h from S, gusts 4 mph7 km/h | 83% | 81% | 0 |
| Mon 4a | Cloudy | 53°12° (likely 53°12° to 56°13°) | 53°12° | 0% | 1 mph2 km/h from S, gusts 4 mph6 km/h | 80% | 81% | 0 |
| Mon 5a | Cloudy | 52°11° (likely 52°11° to 56°13°) | 52°11° | 0% | 1 mph2 km/h from S, gusts 5 mph7 km/h | 83% | 81% | 0 |
| Mon 6a | Cloudy | 52°11° (likely 52°11° to 55°13°) | 52°11° | 0% | 1 mph2 km/h from SW, gusts 5 mph7 km/h | 83% | 82% | 0 |
| Mon 7a | Cloudy | 51°11° (likely 51°11° to 55°13°) | 51°11° | 0% | 1 mph2 km/h from SW, gusts 5 mph7 km/h | 83% | 82% | 0 |
| Mon 8a | Cloudy | 52°11° (likely 52°11° to 57°14°) | 52°11° | 0% | 1 mph2 km/h from SW, gusts 4 mph6 km/h | 86% | 82% | 0 |
| Mon 9a | Cloudy | 57°14° (likely 56°13° to 60°16°) | 57°14° | 0% | 1 mph2 km/h from SW, gusts 5 mph7 km/h | 77% | 81% | 1 |
| Mon 10a | Cloudy | 64°18° (likely 63°17° to 67°19°) | 64°18° | 0% | 1 mph2 km/h from SW, gusts 8 mph13 km/h | 65% | 80% | 1 |
| Mon 11a | Cloudy | 69°21° (likely 68°20° to 73°23°) | 69°21° | 0% | 1 mph2 km/h from SW, gusts 7 mph12 km/h | 57% | 82% | 2 |
| Mon 12p | Cloudy | 72°22° (likely 71°22° to 76°24°) | 72°22° | 0% | 2 mph3 km/h from SW, gusts 7 mph12 km/h | 49% | 84% | 3 |
| Mon 1p | Cloudy | 75°24° (likely 74°23° to 76°24°) | 75°24° | 0% | 2 mph3 km/h from SW, gusts 8 mph12 km/h | 41% | 82% | 4 |
| Mon 2p | Cloudy | 77°25° (likely 75°24° to 78°26°) | 77°25° | 0% | 2 mph3 km/h from SW, gusts 7 mph12 km/h | 39% | 83% | 4 |
| Mon 3p | Mostly cloudy | 77°25° (likely 76°24° to 78°26°) | 77°25° | 0% | 2 mph3 km/h from S, gusts 7 mph11 km/h | 39% | 65% | 3 |
| Mon 4p | Mostly cloudy | 77°25° (likely 75°24° to 78°26°) | 77°25° | 0% | 2 mph3 km/h from S, gusts 6 mph10 km/h | 39% | 62% | 2 |
| Mon 5p | Cloudy | 74°23° (likely 72°22° to 76°24°) | 74°23° | 0% | 2 mph3 km/h from S, gusts 6 mph10 km/h | 43% | 73% | 1 |
| Mon 6p | Partly cloudy | 70°21° (likely 68°20° to 71°22°) | 70°21° | 0% | 2 mph3 km/h from S, gusts 5 mph9 km/h | 51% | 47% | 0 |
| Mon 7p | Cloudy | 65°18° (likely 64°18° to 66°19°) | 65°18° | 0% | 2 mph3 km/h from SE, gusts 5 mph8 km/h | 60% | 60% | 0 |
| Mon 8p | Partly cloudy | 62°17° (likely 61°16° to 63°17°) | 62°17° | 0% | 2 mph3 km/h from S, gusts 3 mph5 km/h | 67% | 44% | 0 |
Days ahead
Tap a day for its hours and the official wording.
Today, Oct 24. Partly sunny. High 75°24°, low 48°9°. Dry. Forecasts agree.
Evening
6 PM–midnight
Clear, 55°13°Dry
Overnight
midnight–6 AM
Partly cloudy, 49°9°Dry
Official NWS forecast
Tonight: Partly cloudy, with a low around 48. Southeast wind around 1 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 75°24°–76°24°
- Low, likely
- 44°7°–48°9°
- Wind
- 6 mph10 km/h, gusts 13 mph21 km/h
- UV peak
- 4
Tomorrow, Oct 25. Cloudy. High 79°26°, low 50°10°. Dry. Mostly agree.
Morning
6 AM–noon
Partly sunny, 49°9°Dry
Afternoon
noon–6 PM
Cloudy, 78°26°Dry
Evening
6 PM–midnight
Cloudy, 62°17°Dry
Overnight
midnight–6 AM
Cloudy, 52°11°Dry
Official NWS forecast
Day: Mostly sunny, with a high near 79. Southeast wind 0 to 3 mph.
Night: Mostly cloudy, with a low around 50. South wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 77°25°–81°27°
- Low, likely
- 47°8°–50°10°
- Wind
- 6 mph10 km/h
- UV peak
- 4
Monday, Oct 26. Cloudy. High 77°25°, low 49°9°. Dry. Forecasts agree.
Morning
6 AM–noon
Cloudy, 52°11°Dry
Afternoon
noon–6 PM
Mostly cloudy, 77°25°Dry
Evening
6 PM–midnight
Clear, 62°17°Dry
Overnight
midnight–6 AM
Cloudy, 53°11°Dry
Official NWS forecast
Day: Partly sunny, with a high near 77. South wind around 2 mph.
Night: Partly cloudy, with a low around 49. South wind around 2 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 76°24°–78°26°
- Low, likely
- 49°9°–55°13°
- Wind
- 7 mph11 km/h, gusts 12 mph19 km/h
- UV peak
- 4
Tuesday, Oct 27. Cloudy. High 76°24°, low 51°11°. Dry. Forecasts agree.
Morning
6 AM–noon
Cloudy, 53°12°Dry
Afternoon
noon–6 PM
Cloudy, 73°23°Dry
Evening
6 PM–midnight
Cloudy, 62°17°Dry
Overnight
midnight–6 AM
Clear, 54°12°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 51.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 73°23°–76°24°
- Low, likely
- 50°10°–55°13°
- Wind
- 8 mph13 km/h, gusts 18 mph29 km/h
- UV peak
- 4
Wednesday, Oct 28. Partly sunny. High 80°27°, low 53°12°. Dry. Mostly agree.
Morning
6 AM–noon
Sunny, 55°13°Dry
Afternoon
noon–6 PM
Sunny, 79°26°Dry
Evening
6 PM–midnight
Clear, 64°18°Dry
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 80.
Night: Mostly clear, with a low around 53.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 76°24°–80°27°
- Low, likely
- 49°9°–56°13°
- Wind
- 9 mph15 km/h, gusts 20 mph32 km/h
- UV peak
- 4
Thursday, Oct 29. Mostly sunny. High 82°28°, low 54°12°. Dry. Forecasts agree.
Morning
6 AM–noon
Sunny, 58°14°Dry
Afternoon
noon–6 PM
Sunny, 81°27°Dry
Evening
6 PM–midnight
Clear, 67°19°Dry
Overnight
midnight–6 AM
Clear, 57°14°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 54.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 80°27°–82°28°
- Low, likely
- 53°12°–58°14°
- Wind
- 11 mph18 km/h, gusts 28 mph44 km/h
- UV peak
- 4
Friday, Oct 30. Cloudy. High 80°27°, low 56°13°. Dry. Mostly agree.
Morning
6 AM–noon
Cloudy, 59°15°Dry
Afternoon
noon–6 PM
Partly sunny, 79°26°Dry
Evening
6 PM–midnight
Cloudy, 67°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 80.
Night: Mostly cloudy, with a low around 56.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 77°25°–81°27°
- Low, likely
- 54°12°–58°14°
- Wind
- 11 mph18 km/h, gusts 20 mph32 km/h
- UV peak
- 4
Saturday, Oct 31. Showers. High 76°24°, low 60°16°. Rain 0.15 in3.8 mm, 30% chance. Forecasts differ.
Morning
6 AM–noon
Partly sunny, 60°16°30% chance
Afternoon
noon–6 PM
Cloudy, 74°23°30% chance · 0.02 in0.5 mm
Evening
6 PM–midnight
Drizzle, 68°20°40% chance · 0.08 in2 mm
Overnight
midnight–6 AM
Drizzle, 65°18°40% chance · 0.18 in4.7 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain showers after 7am. Partly sunny, with a high near 76. Chance of precipitation is 30%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 62°17°–80°27°
- Low, likely
- 57°14°–63°17°
- Wind
- 16 mph26 km/h, gusts 31 mph50 km/h
- UV peak
- 3
Sunday, Nov 1. Drizzle. High 76°24°, low 63°17°. Rain 0.34 in8.6 mm, 50% chance. Forecasts differ.
Morning
6 AM–noon
Drizzle, 67°19°40% chance · 0.06 in1.6 mm
Afternoon
noon–6 PM
Partly sunny, 78°25°30% chance
Evening
6 PM–midnight
Cloudy, 70°21°30% chance · 0.09 in2.3 mm
Overnight
midnight–6 AM
Cloudy, 60°16°30% chance · 0.04 in1 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
- 71°22°–84°29°
- Low, likely
- 61°16°–68°20°
- Wind
- 18 mph29 km/h, gusts 36 mph58 km/h
- UV peak
- 3
Monday, Nov 2. Cloudy. High 72°22°, low 58°14°. Rain 0.14 in3.6 mm, 40% chance. Forecasts differ.
Morning
6 AM–noon
Cloudy, 61°16°30% chance
Afternoon
noon–6 PM
Cloudy, 69°21°30% chance · 0.02 in0.5 mm
Evening
6 PM–midnight
Cloudy, 60°15°30% chance · 0.1 in2.5 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
- 63°17°–78°26°
- Low, likely
- 41°5°–67°19°
- Wind
- 17 mph27 km/h, gusts 36 mph57 km/h
- UV peak
- 3
The outlook
Today
Dry, high 75°, low 48°.
Tomorrow
Dry, high 79°, low 50°, warming up.
Monday
Dry, high 77°, low 49°.
Rest of week
Highs 72–82°; chance of precipitation on Sunday.
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
Rivers
NOAA river gauges within 25 mi
Below flood stage
Mississippi River at Herculaneum
6.0 mi- Level
- 5.6 ft
Reading from Sat 7 PM · NWS gauge page
Meramec River at Arnold
7.3 mi- Level
- 5.7 ft
- Flow
- 6,990 cfs
Reading from Sat 7:30 PM · NWS gauge page
Meramec River at Fenton
11 mi- Level
- 1.3 ft
Reading from Sat 7:15 PM · NWS gauge page
Sun & moon
Sun
Sunrise 7:19 AM, sunset 6:11 PM.
- Daylight
- 10 h 52 min
- Losing 2 min 16 s a day; shortest Dec 21, 1 h 22 min less
- Golden hour
- 5:34–6:27 PM
- Morning 7:03–7:56 AM
- Blue hour
- 6:27–6:38 PM
- Morning 6:52–7:03 AM; first light 6:52 AM
Stars tonight? Fair
Mostly clear 9:24 PM–1 AM, 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
