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Current weather in St. Louis is clear sky.

Where can I find the hourly weather forecast for St. Louis?

This page shows hourly weather forecast for St. Louis, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for St. Louis updated regularly?

Weather data for St. Louis is updated regularly with the latest available observations and forecasts.

Now · 3:35 PM

St. Louis Weather & Hourly Forecast

United States · Missouri · 63110

87°F

Sunny

Feels like: 87°F

💧 Humidity 41% 🌡 Pressure 30.06 inHg 💨 Wind 10 mph 👁 Visibility 6.2 mi ☁ Clouds 2% ☀️ UV index 8.0 · Very high 🌅 Sunrise 6:26 AM 🌇 Sunset 7:38 PM

Hourly Forecast for St. Louis

Today

4:00 PM

Sunny

87° 💧 None 💨 10 mph H 41%30.06 inHg

7:00 PM

Sunny

83° 💧 None 💨 7 mph H 43%30.06 inHg

10:00 PM

Mostly clear night

73° 💧 None 💨 5 mph H 55%30.09 inHg

Tomorrow

1:00 AM

Clear night

68° 💧 None 💨 6 mph H 67%30.06 inHg

4:00 AM

Partly cloudy night

66° 💧 None 💨 6 mph H 72%30.09 inHg

7:00 AM

Mostly cloudy

67° 💧 None 💨 5 mph H 74%30.12 inHg

10:00 AM

Overcast

80° 💧 None 💨 6 mph H 49%30.09 inHg

1:00 PM

Overcast

88° 💧 None 💨 8 mph H 33%30.03 inHg

4:00 PM

Overcast

89° 💧 None 💨 8 mph H 26%29.97 inHg

7:00 PM

Overcast

82° 💧 None 💨 9 mph H 40%29.94 inHg

10:00 PM

Mostly cloudy night

74° 💧 None 💨 10 mph H 47%29.97 inHg

Sunday

1:00 AM

Mostly cloudy night

71° 💧 None 💨 8 mph H 48%29.97 inHg

4:00 AM

Partly cloudy night

70° 💧 None 💨 9 mph H 46%29.94 inHg

7:00 AM

Mostly cloudy

70° 💧 None 💨 6 mph H 48%29.97 inHg

10:00 AM

Overcast

87° 💧 None 💨 10 mph H 31%30.00 inHg

1:00 PM

Mostly cloudy

99° 💧 None 💨 11 mph H 21%29.94 inHg

Today

4:00 PM

Sunny

87° 💧 None 💨 10 mph H 41%30.06 inHg

5:00 PM

Sunny

87° 💧 None 💨 10 mph H 40%30.06 inHg

6:00 PM

Sunny

86° 💧 None 💨 10 mph H 40%30.06 inHg

7:00 PM

Sunny

83° 💧 None 💨 7 mph H 43%30.06 inHg

8:00 PM

Mostly clear night

80° 💧 None 💨 5 mph H 47%30.06 inHg

9:00 PM

Mostly clear night

75° 💧 None 💨 4 mph H 53%30.09 inHg

10:00 PM

Mostly clear night

73° 💧 None 💨 5 mph H 55%30.09 inHg

11:00 PM

Clear night

71° 💧 None 💨 5 mph H 59%30.09 inHg

Tomorrow

12:00 AM

Clear night

70° 💧 None 💨 6 mph H 64%30.06 inHg

1:00 AM

Clear night

68° 💧 None 💨 6 mph H 67%30.06 inHg

2:00 AM

Clear night

67° 💧 None 💨 6 mph H 69%30.06 inHg

3:00 AM

Partly cloudy night

66° 💧 None 💨 5 mph H 71%30.09 inHg

4:00 AM

Partly cloudy night

66° 💧 None 💨 6 mph H 72%30.09 inHg

5:00 AM

Mostly cloudy night

65° 💧 None 💨 6 mph H 74%30.09 inHg

6:00 AM

Mostly cloudy night

64° 💧 None 💨 5 mph H 75%30.09 inHg

7:00 AM

Mostly cloudy

67° 💧 None 💨 5 mph H 74%30.12 inHg

8:00 AM

Overcast

70° 💧 None 💨 5 mph H 67%30.12 inHg

9:00 AM

Overcast

76° 💧 None 💨 5 mph H 57%30.12 inHg

10:00 AM

Overcast

80° 💧 None 💨 6 mph H 49%30.09 inHg

11:00 AM

Overcast

85° 💧 None 💨 7 mph H 43%30.09 inHg

12:00 PM

Overcast

87° 💧 None 💨 8 mph H 37%30.06 inHg

1:00 PM

Overcast

88° 💧 None 💨 8 mph H 33%30.03 inHg

2:00 PM

Overcast

90° 💧 None 💨 8 mph H 28%30.00 inHg

3:00 PM

Overcast

90° 💧 None 💨 9 mph H 27%29.97 inHg

4:00 PM

Overcast

89° 💧 None 💨 8 mph H 26%29.97 inHg

5:00 PM

Overcast

89° 💧 None 💨 9 mph H 24%29.94 inHg

6:00 PM

Overcast

86° 💧 None 💨 10 mph H 30%29.94 inHg

7:00 PM

Overcast

82° 💧 None 💨 9 mph H 40%29.94 inHg

8:00 PM

Overcast night

78° 💧 None 💨 9 mph H 47%29.97 inHg

9:00 PM

Overcast night

75° 💧 None 💨 11 mph H 48%29.97 inHg

10:00 PM

Mostly cloudy night

74° 💧 None 💨 10 mph H 47%29.97 inHg

11:00 PM

Mostly cloudy night

73° 💧 None 💨 11 mph H 46%29.97 inHg

Sunday

12:00 AM

Mostly cloudy night

73° 💧 None 💨 9 mph H 47%29.97 inHg

1:00 AM

Mostly cloudy night

71° 💧 None 💨 8 mph H 48%29.97 inHg

2:00 AM

Partly cloudy night

70° 💧 None 💨 9 mph H 49%29.97 inHg

3:00 AM

Mostly clear night

70° 💧 None 💨 9 mph H 46%29.94 inHg

4:00 AM

Partly cloudy night

70° 💧 None 💨 9 mph H 46%29.94 inHg

5:00 AM

Mostly cloudy night

69° 💧 None 💨 8 mph H 47%29.94 inHg

6:00 AM

Mostly cloudy night

68° 💧 None 💨 7 mph H 47%29.97 inHg

7:00 AM

Mostly cloudy

70° 💧 None 💨 6 mph H 48%29.97 inHg

8:00 AM

Mostly cloudy

77° 💧 None 💨 6 mph H 44%30.00 inHg

9:00 AM

Overcast

82° 💧 None 💨 8 mph H 36%30.00 inHg

10:00 AM

Overcast

87° 💧 None 💨 10 mph H 31%30.00 inHg

11:00 AM

Overcast

92° 💧 None 💨 12 mph H 28%30.00 inHg

12:00 PM

Mostly cloudy

96° 💧 None 💨 12 mph H 24%29.97 inHg

1:00 PM

Mostly cloudy

99° 💧 None 💨 11 mph H 21%29.94 inHg

2:00 PM

Mostly cloudy

101° 💧 None 💨 12 mph H 19%29.91 inHg

3:00 PM

Mostly cloudy

102° 💧 None 💨 11 mph H 18%29.88 inHg

4:00 PM

Mostly cloudy

102° 💧 None 💨 11 mph H 17%29.88 inHg

5:00 PM

Mostly cloudy

102° 💧 None 💨 10 mph H 18%29.85 inHg

6:00 PM

Mostly cloudy

100° 💧 None 💨 9 mph H 19%29.85 inHg

7:00 PM

Mostly cloudy

95° 💧 None 💨 8 mph H 26%29.85 inHg

8:00 PM

Partly cloudy night

89° 💧 None 💨 8 mph H 32%29.85 inHg

9:00 PM

Partly cloudy night

88° 💧 None 💨 9 mph H 34%29.88 inHg

10:00 PM

Partly cloudy night

87° 💧 None 💨 9 mph H 34%29.88 inHg

11:00 PM

Partly cloudy night

85° 💧 None 💨 9 mph H 36%29.88 inHg

Monday

12:00 AM

Partly cloudy night

83° 💧 None 💨 9 mph H 40%29.88 inHg

1:00 AM

Partly cloudy night

83° 💧 None 💨 9 mph H 42%29.88 inHg

2:00 AM

Clear night

82° 💧 None 💨 9 mph H 43%29.88 inHg

3:00 AM

Clear night

82° 💧 None 💨 9 mph H 44%29.88 inHg

4:00 AM

Clear night

81° 💧 None 💨 8 mph H 47%29.91 inHg

5:00 AM

Clear night

80° 💧 None 💨 8 mph H 49%29.91 inHg

6:00 AM

Clear night

80° 💧 None 💨 7 mph H 50%29.91 inHg

7:00 AM

Sunny

80° 💧 None 💨 7 mph H 50%29.94 inHg

8:00 AM

Mostly cloudy

83° 💧 None 💨 9 mph H 45%29.94 inHg

9:00 AM

Mostly cloudy

89° 💧 None 💨 12 mph H 38%29.94 inHg

10:00 AM

Mostly cloudy

93° 💧 None 💨 12 mph H 33%29.94 inHg

11:00 AM

Partly cloudy

97° 💧 None 💨 11 mph H 29%29.94 inHg

12:00 PM

Partly cloudy

100° 💧 None 💨 11 mph H 26%29.94 inHg

1:00 PM

Partly cloudy

103° 💧 None 💨 10 mph H 23%29.91 inHg

2:00 PM

Sunny

105° 💧 None 💨 9 mph H 21%29.91 inHg

3:00 PM

Sunny

106° 💧 None 💨 9 mph H 20%29.88 inHg

4:00 PM

Sunny

106° 💧 None 💨 8 mph H 20%29.85 inHg

5:00 PM

Sunny

106° 💧 None 💨 8 mph H 20%29.85 inHg

6:00 PM

Sunny

105° 💧 None 💨 7 mph H 20%29.85 inHg

7:00 PM

Sunny

100° 💧 None 💨 6 mph H 24%29.85 inHg

8:00 PM

Clear night

94° 💧 None 💨 7 mph H 29%29.85 inHg

9:00 PM

Mostly clear night

91° 💧 None 💨 8 mph H 34%29.88 inHg

10:00 PM

Partly cloudy night

90° 💧 None 💨 9 mph H 37%29.91 inHg

11:00 PM

Partly cloudy night

89° 💧 None 💨 9 mph H 38%29.91 inHg

Tuesday

12:00 AM

Partly cloudy night

87° 💧 None 💨 10 mph H 40%29.91 inHg

1:00 AM

Partly cloudy night

86° 💧 None 💨 10 mph H 40%29.91 inHg

2:00 AM

Partly cloudy night

85° 💧 None 💨 9 mph H 40%29.91 inHg

3:00 AM

Partly cloudy night

85° 💧 None 💨 9 mph H 41%29.91 inHg

4:00 AM

Partly cloudy night

84° 💧 None 💨 8 mph H 42%29.91 inHg

5:00 AM

Partly cloudy night

82° 💧 None 💨 8 mph H 45%29.94 inHg

6:00 AM

Mostly cloudy night

81° 💧 None 💨 7 mph H 46%29.94 inHg

7:00 AM

Mostly cloudy

81° 💧 None 💨 6 mph H 47%29.97 inHg

8:00 AM

Overcast

85° 💧 None 💨 7 mph H 42%30.00 inHg

9:00 AM

Overcast

89° 💧 None 💨 9 mph H 37%30.00 inHg

10:00 AM

Overcast

93° 💧 None 💨 10 mph H 34%30.00 inHg

11:00 AM

Overcast

97° 💧 None 💨 11 mph H 31%30.00 inHg

12:00 PM

Mostly cloudy

100° 💧 None 💨 10 mph H 27%29.97 inHg

1:00 PM

Mostly cloudy

103° 💧 None 💨 10 mph H 24%29.94 inHg

2:00 PM

Sunny

104° 💧 None 💨 9 mph H 22%29.91 inHg

3:00 PM

Sunny

105° 💧 None 💨 9 mph H 21%29.91 inHg

In St. Louis and, more broadly, across the state of Missouri: As the afternoon winds down, the weather remains mostly sunny with just a few clouds in the sky. Temperatures are still on the warm side, ranging from the mid-70s to the low 80s. Light northeast winds, blowing at up to 8 mph with occasional gusts around 13 mph, continue to gently move through the area. No rain is expected through the evening, so the night should stay dry and mild. Temperatures are likely to gradually cool into the evening, remaining comfortable without dipping into any cooler extremes. Overall, it promises to be a pleasant evening with clear skies and gentle breezes.

15-Day Weather Outlook for St. Louis

TomorrowTomorrow

Overcast 94°/62° 💧 None 💨 9 mph

Sunday, Aug 30Sun Aug 30

Overcast 103°/71° 💧 None 💨 11 mph

Monday, Aug 31Mon Aug 31

Mostly sunny 106°/80° 💧 None 💨 14 mph

Tuesday, Sep 1Tue Sep 1

Sunny 104°/80° 💧 None 💨 11 mph

Wednesday, Sep 2Wed Sep 2

Sunny 104°/80° 💧 None 💨 11 mph

Thursday, Sep 3Thu Sep 3

Sunny 104°/83° 💧 None 💨 10 mph

Friday, Sep 4Fri Sep 4

Partly cloudy 105°/82° 💧 None 💨 9 mph

Saturday, Sep 5Sat Sep 5

Light rain 103°/80° 💧 0.00 in 💨 8 mph

Sunday, Sep 6Sun Sep 6

Light rain 101°/79° 💧 0.04 in 💨 11 mph

Monday, Sep 7Mon Sep 7

Sunny 94°/71° 💧 None 💨 13 mph

Tuesday, Sep 8Tue Sep 8

Partly cloudy 91°/66° 💧 None 💨 9 mph

Wednesday, Sep 9Wed Sep 9

Light rain 75°/67° 💧 0.05 in 💨 7 mph

Thursday, Sep 10Thu Sep 10

Mostly cloudy 86°/64° 💧 None 💨 9 mph

Friday, Sep 11Fri Sep 11

Sunny 92°/61° 💧 None 💨 8 mph

Saturday, Sep 12Sat Sep 12

Moderate rain 94°/70° 💧 0.49 in 💨 14 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in St. Louis

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for St. Louis

Hourly forecast · Updated every 2 hours

Moderate

Nearest forecast value 4:00 PM

PM2.5 Fine particles Good 5,3µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 5,5µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Moderate 102,7µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 0,6µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Sensitive people should reduce strenuous and prolonged outdoor exertion.

UV & HEALTH

UV, Sun & Health Outlook in St. Louis

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 8,0Very high 😐Moderate

Tomorrow UV 8,0Very high 😐Moderate

Sunday UV 9,0Very high 😐Moderate

Monday UV 9,0Very high 😐Moderate

Tuesday UV 9,0Very high 🙂Fair

Wednesday UV 9,0Very high —Unavailable

Thursday UV 10,0Very high —Unavailable

Hourly UV index today

4:00 PMUV 8,0 5:00 PMUV 8,0 6:00 PMUV 8,0 7:00 PMUV 7,0

Today's weather health advice Open today's recommendations.

Very high UV risk

Use SPF 50+ sunscreen, a hat and sunglasses. Seek shade and limit exposure around midday.

Caution for sensitive people

People with respiratory or cardiovascular conditions should reduce prolonged outdoor exertion.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure.

Best in the morning or late in the day

For walking, running or cycling, prefer the early morning or late afternoon.

WIND OUTLOOK

Hourly Wind Forecast for St. Louis

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

Internal PR simulation: 5.53 Population: 288,512

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Forecast data for St. Louis were last refreshed today at 3:30 PM. The current forecast period extends through 30/08/2026 at 1:00 PM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.