Cities / United States / Missouri

28°

🌤️ Lake Saint Louis weather

Mostly clear. .

Feels like 30° Wind 9 km/h SE Humidity 53% Pressure 1013 hPa UV 0 Air Good ☀ 06:30 - 19:36
⚠ Extreme Heat Watch · Severe

Extreme Heat Watch issued August 30 at 12:27PM CDT until September 4 at 8:00PM CDT by NWS St Louis MO

Right now it is 28° in Lake Saint Louis with mostly clear skies and today's high is 35° with an overnight low of 21°. The sun rises at 06:30 and sets at 19:36, giving 13h 06m of daylight. Over the coming week highs range from 38° to 41° - a steady stretch with little day-to-day change.

Lake Saint Louis is in Missouri, United States, sitting 172 m above sea level, with a population of about 15,000. Local time is America/Chicago (UTC−5), and every time on this page is shown in it.

Next 24 hours - temperature

23° 31° 38° 38° 23° 20:00 · 29° · 0 mm 21:00 · 27.5° · 0 mm 22:00 · 26.6° · 0 mm 23:00 · 26° · 0 mm 00:00 · 25.8° · 0 mm 01:00 · 25.4° · 0 mm 02:00 · 24.8° · 0 mm 03:00 · 24.5° · 0 mm 04:00 · 24.2° · 0 mm 05:00 · 23.6° · 0 mm 06:00 · 23.4° · 0 mm 07:00 · 23.5° · 0 mm 08:00 · 26.3° · 0 mm 09:00 · 29.6° · 0 mm 10:00 · 31.8° · 0 mm 11:00 · 33.9° · 0 mm 12:00 · 35.5° · 0 mm 13:00 · 36.5° · 0 mm 14:00 · 37.6° · 0 mm 15:00 · 37.9° · 0 mm 16:00 · 37.9° · 0 mm 17:00 · 37.8° · 0 mm 18:00 · 36.6° · 0 mm 19:00 · 34.4° · 0 mm

Precipitation

20:00 · 0 mm 20:00 21:00 · 0 mm 22:00 · 0 mm 23:00 · 0 mm 23:00 00:00 · 0 mm 01:00 · 0 mm 02:00 · 0 mm 02:00 03:00 · 0 mm 04:00 · 0 mm 05:00 · 0 mm 05:00 06:00 · 0 mm 07:00 · 0 mm 08:00 · 0 mm 08:00 09:00 · 0 mm 10:00 · 0 mm 11:00 · 0 mm 11:00 12:00 · 0 mm 13:00 · 0 mm 14:00 · 0 mm 14:00 15:00 · 0 mm 16:00 · 0 mm 17:00 · 0 mm 17:00 18:00 · 0 mm 19:00 · 0 mm

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
20:00 🌤️ 29° 29.9° - Mostly clear
21:00 ☀️ 27.5° 28.1° - Clear sky
22:00 ☀️ 26.6° 25.9° - Clear sky
23:00 ☀️ 26° 24.9° - Clear sky
00:00 ☀️ 25.8° 24° - Clear sky
01:00 ☀️ 25.4° 23.3° - Clear sky
02:00 ☀️ 24.8° 22.7° - Clear sky
03:00 ☀️ 24.5° 22.6° - Clear sky
04:00 ☀️ 24.2° 22.7° - Clear sky
05:00 ☀️ 23.6° 22.6° - Clear sky
06:00 ☀️ 23.4° 22.4° - Clear sky
07:00 ☀️ 23.5° 22.5° - Clear sky

Next 16 days

Today☀️ 35°21° Mon 31☀️ 38°23° Tue 1☀️ 40°25° Wed 2☀️ 40°24° Thu 3☀️ 40°25° Fri 4☀️ 39°26° Sat 5⛅ 41°25° Sun 6🌦️ 41°24°1.2mm Mon 7⛅ 42°22° Tue 8☀️ 35°17° Wed 9☀️ 32°13° Thu 10☀️ 37°16° Fri 11☀️ 28°13° Sat 12🌤️ 30°9° Sun 13☀️ 37°14° Mon 14☀️ 39°11°
☀️ TodayAugust 30th Avg 27° Low 21° at 07:00 High 35° at 16:00 Wind ~19 km/h
Clear Clear
00:00 22°
02:00 22°
04:00 22°
06:00 21°
08:00 23°
10:00 28°
12:00 32°
14:00 34°
16:00 35°
18:00 33°
20:00 29°
22:00 27°
☀️ MondayAugust 31st Avg 30° Low 23° at 06:00 High 38° at 15:00 Wind ~20 km/h
Clear
00:00 26°
02:00 25°
04:00 24°
06:00 23°
08:00 26°
10:00 32°
12:00 36°
14:00 38°
16:00 38°
18:00 37°
20:00 32°
22:00 29°
☀️ TuesdaySeptember 1st Avg 32° Low 25° at 07:00 High 40° at 16:00 Wind ~20 km/h
Clear
00:00 28°
02:00 27°
04:00 26°
06:00 25°
08:00 28°
10:00 34°
12:00 37°
14:00 39°
16:00 40°
18:00 39°
20:00 31°
22:00 30°
☀️ WednesdaySeptember 2nd Avg 32° Low 24° at 06:00 High 40° at 16:00 Feels 38° Wind ~21 km/h
Clear
00:00 28°
02:00 27°
04:00 25°
06:00 24°
08:00 27°
10:00 33°
12:00 37°
14:00 39°
16:00 40°
18:00 39°
20:00 31°
22:00 30°
☀️ ThursdaySeptember 3rd Avg 32° Low 25° at 06:00 High 40° at 15:00 Feels 38° Wind ~19 km/h
Clear Cloudy
00:00 29°
02:00 26°
04:00 26°
06:00 25°
08:00 28°
10:00 34°
12:00 37°
14:00 39°
16:00 40°
18:00 37°
20:00 33°
22:00 32°
☀️ FridaySeptember 4th Avg 31° Low 26° at 06:00 High 39° at 14:00 Wind ~18 km/h
Clear Clear
00:00 28°
02:00 26°
04:00 26°
06:00 26°
08:00 29°
10:00 33°
12:00 37°
14:00 39°
16:00 39°
18:00 35°
20:00 32°
22:00 29°
⛅ SaturdaySeptember 5th Avg 32° Low 25° at 06:00 High 41° at 15:00 Wind ~16 km/h
Clear Partly Cloudy Cloudy Partly Cloudy Clear
00:00 27°
02:00 27°
04:00 27°
06:00 25°
08:00 27°
10:00 33°
12:00 38°
14:00 41°
16:00 41°
18:00 36°
20:00 31°
22:00 28°
🌦️ SundaySeptember 6th Avg 29° Low 24° at 07:00 High 41° at 15:00 1.2 mm rain Wind ~18 km/h
Cloudy Rain Cloudy Rain
00:00 27°
02:00 27°
04:00 26°
06:00 24° 0.2mm
08:00 25°
10:00 29°
12:00 35°
14:00 39°
16:00 40°
18:00 30° 0.2mm
20:00 25°
22:00 26°
⛅ MondaySeptember 7th Avg 32° Low 22° at 06:00 High 42° at 16:00 Feels 38° Wind ~34 km/h
Partly Cloudy Cloudy
00:00 24°
02:00 23°
04:00 23°
06:00 22°
08:00 24°
10:00 31°
12:00 37°
14:00 41°
16:00 42°
18:00 40°
20:00 37°
22:00 35°
☀️ TuesdaySeptember 8th Avg 27° Low 17° at 23:00 High 35° at 00:00 Feels 31° Wind ~34 km/h
Partly Cloudy Cloudy Clear
00:00 35°
02:00 33°
04:00 30°
06:00 28°
08:00 26°
10:00 27°
12:00 29°
14:00 31°
16:00 30°
18:00 26°
20:00 21°
22:00 18°
☀️ WednesdaySeptember 9th Avg 22° Low 13° at 06:00 High 32° at 16:00 Feels 28° Wind ~20 km/h
Clear
00:00 17°
02:00 16°
04:00 15°
06:00 13°
08:00 15°
10:00 22°
12:00 27°
14:00 30°
16:00 32°
18:00 29°
20:00 25°
22:00 20°
☀️ ThursdaySeptember 10th Avg 26° Low 16° at 06:00 High 37° at 16:00 Feels 33° Wind ~32 km/h
Clear Partly Cloudy
00:00 18°
02:00 17°
04:00 17°
06:00 16°
08:00 20°
10:00 27°
12:00 33°
14:00 36°
16:00 37°
18:00 35°
20:00 32°
22:00 28°
☀️ FridaySeptember 11th Avg 21° Low 13° at 23:00 High 28° at 14:00 Feels 21° Wind ~28 km/h
Partly Cloudy Clear
00:00 22°
02:00 18°
04:00 16°
06:00 13°
08:00 16°
10:00 23°
12:00 27°
14:00 28°
16:00 28°
18:00 25°
20:00 20°
22:00 14°
🌤️ SaturdaySeptember 12th Avg 19° Low 9° at 06:00 High 30° at 16:00 Feels 26° Wind ~14 km/h
Clear Partly Cloudy Partly Cloudy
00:00 12°
02:00 11°
04:00 10°
06:00 9°
08:00 13°
10:00 21°
12:00 25°
14:00 28°
16:00 30°
18:00 26°
20:00 22°
22:00 19°
☀️ SundaySeptember 13th Avg 24° Low 14° at 06:00 High 37° at 15:00 Feels 32° Wind ~25 km/h
Clear
00:00 17°
02:00 16°
04:00 16°
06:00 14°
08:00 18°
10:00 27°
12:00 33°
14:00 36°
16:00 37°
18:00 33°
20:00 26°
22:00 19°
☀️ MondaySeptember 14th Avg 25° Low 11° at 06:00 High 39° at 16:00 Feels 33° Wind ~25 km/h
Clear
00:00 16°
02:00 14°
04:00 13°
06:00 11°
08:00 15°
10:00 25°
12:00 31°
14:00 36°
16:00 39°
18:00 35°
20:00 32°
22:00 30°

Sun

☀️ Sunrise 06:30 · Sunset 19:36

13h 06m of daylight · America/Chicago

Air quality

PM2.5 6.6 µg/m³ - Good

No reason to change your plans - open the windows.

Source: Copernicus CAMS, updated hourly.

Nearby

Gilmore · 2.3 km Dardenne · 4.4 km Josephville · 5.1 km Dardenne Prairie · 5.8 km Wentzville · 6 km Villages at Stonegate · 6.5 km

Tools for Lake Saint Louis

☔ Will it rain today? 🌅 Sunrise & sunset 🫁 Air quality 📼 Weather on this day

Common questions about Lake Saint Louis weather

Will it rain in Lake Saint Louis today?

No rain is in the forecast for Lake Saint Louis today.

What is the temperature in Lake Saint Louis right now?

It is 28° in Lake Saint Louis right now, though it feels closer to 30°. Today runs between a low of 21° and a high of 35°.

What time is sunrise and sunset in Lake Saint Louis?

The sun rises at 06:30 and sets at 19:36 local time in Lake Saint Louis today, giving 13h 06m of daylight.

What is the air quality in Lake Saint Louis?

PM2.5 in Lake Saint Louis is currently 6.6 µg/m³, which counts as Good on the European air-quality index. No reason to change your plans - open the windows.

How accurate is the Lake Saint Louis forecast, and how far ahead does it go?

This page shows 16 days ahead, refreshed every hour. It blends ECMWF, NOAA GFS and whichever national high-resolution model covers Lake Saint Louis best. The first three days are the dependable part - day one is usually within a degree or two - and accuracy falls off steadily after day five, so read the far end as a trend rather than a plan. We publish our measured error against real station observations on the accuracy page.

This page is a live API demo.

Everything above came from one call to the WeatherMetro API - free tier, 100,000 calls a month.

Read the docs