What is the weather in Affton right now?

Current weather in Affton is clear sky.

Where can I find the hourly weather forecast for Affton?

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

Is the weather forecast for Affton updated regularly?

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

Now · 11:15 PM

Affton Weather & Hourly Forecast

United States · Missouri · 63123

84°F

Clear night

Feels like: 89°F

💧 Humidity 64% 🌡 Pressure 30.00 inHg 💨 Wind 7 mph 👁 Visibility 6.2 mi ☁ Clouds 0% ☀️ UV index 0.0 · Low 🌅 Sunrise 6:30 AM 🌇 Sunset 7:32 PM

Hourly Forecast for Affton

Tomorrow

12:00 AM

Clear night

84° 💧 None 💨 7 mph H 64%30.00 inHg

3:00 AM

Clear night

81° 💧 None 💨 5 mph H 57%29.97 inHg

6:00 AM

Clear night

76° 💧 None 💨 5 mph H 55%29.97 inHg

9:00 AM

Sunny

87° 💧 None 💨 9 mph H 43%30.00 inHg

12:00 PM

Sunny

97° 💧 None 💨 9 mph H 29%29.97 inHg

3:00 PM

Sunny

103° 💧 None 💨 9 mph H 23%29.91 inHg

6:00 PM

Mostly sunny

98° 💧 None 💨 8 mph H 26%29.85 inHg

9:00 PM

Partly cloudy night

89° 💧 None 💨 7 mph H 42%29.91 inHg

Thursday

12:00 AM

Clear night

85° 💧 None 💨 7 mph H 44%29.88 inHg

3:00 AM

Clear night

80° 💧 None 💨 6 mph H 50%29.91 inHg

6:00 AM

Clear night

76° 💧 None 💨 5 mph H 58%29.94 inHg

9:00 AM

Sunny

87° 💧 None 💨 8 mph H 44%29.97 inHg

12:00 PM

Sunny

97° 💧 None 💨 9 mph H 30%29.94 inHg

3:00 PM

Mostly cloudy

103° 💧 None 💨 10 mph H 25%29.88 inHg

6:00 PM

Mostly cloudy

99° 💧 None 💨 12 mph H 28%29.85 inHg

9:00 PM

Clear night

88° 💧 None 💨 6 mph H 42%29.88 inHg

Tomorrow

12:00 AM

Clear night

84° 💧 None 💨 7 mph H 64%30.00 inHg

1:00 AM

Clear night

83° 💧 None 💨 7 mph H 62%30.00 inHg

2:00 AM

Clear night

82° 💧 None 💨 6 mph H 59%29.97 inHg

3:00 AM

Clear night

81° 💧 None 💨 5 mph H 57%29.97 inHg

4:00 AM

Clear night

79° 💧 None 💨 6 mph H 55%29.94 inHg

5:00 AM

Clear night

77° 💧 None 💨 6 mph H 54%29.97 inHg

6:00 AM

Clear night

76° 💧 None 💨 5 mph H 55%29.97 inHg

7:00 AM

Sunny

78° 💧 None 💨 6 mph H 55%30.00 inHg

8:00 AM

Sunny

82° 💧 None 💨 7 mph H 51%30.00 inHg

9:00 AM

Sunny

87° 💧 None 💨 9 mph H 43%30.00 inHg

10:00 AM

Sunny

92° 💧 None 💨 9 mph H 37%30.00 inHg

11:00 AM

Sunny

95° 💧 None 💨 9 mph H 32%30.00 inHg

12:00 PM

Sunny

97° 💧 None 💨 9 mph H 29%29.97 inHg

1:00 PM

Sunny

100° 💧 None 💨 8 mph H 26%29.94 inHg

2:00 PM

Sunny

102° 💧 None 💨 8 mph H 24%29.91 inHg

3:00 PM

Sunny

103° 💧 None 💨 9 mph H 23%29.91 inHg

4:00 PM

Mostly sunny

103° 💧 None 💨 7 mph H 22%29.88 inHg

5:00 PM

Mostly sunny

102° 💧 None 💨 7 mph H 22%29.85 inHg

6:00 PM

Mostly sunny

98° 💧 None 💨 8 mph H 26%29.85 inHg

7:00 PM

Partly cloudy

94° 💧 None 💨 6 mph H 30%29.88 inHg

8:00 PM

Partly cloudy night

91° 💧 None 💨 7 mph H 38%29.88 inHg

9:00 PM

Partly cloudy night

89° 💧 None 💨 7 mph H 42%29.91 inHg

10:00 PM

Mostly clear night

87° 💧 None 💨 7 mph H 44%29.91 inHg

11:00 PM

Mostly clear night

86° 💧 None 💨 7 mph H 45%29.91 inHg

Thursday

12:00 AM

Clear night

85° 💧 None 💨 7 mph H 44%29.88 inHg

1:00 AM

Clear night

83° 💧 None 💨 7 mph H 47%29.91 inHg

2:00 AM

Clear night

82° 💧 None 💨 6 mph H 49%29.91 inHg

3:00 AM

Clear night

80° 💧 None 💨 6 mph H 50%29.91 inHg

4:00 AM

Clear night

78° 💧 None 💨 6 mph H 53%29.91 inHg

5:00 AM

Clear night

77° 💧 None 💨 5 mph H 56%29.91 inHg

6:00 AM

Clear night

76° 💧 None 💨 5 mph H 58%29.94 inHg

7:00 AM

Sunny

77° 💧 None 💨 5 mph H 59%29.94 inHg

8:00 AM

Sunny

82° 💧 None 💨 6 mph H 52%29.97 inHg

9:00 AM

Sunny

87° 💧 None 💨 8 mph H 44%29.97 inHg

10:00 AM

Sunny

92° 💧 None 💨 9 mph H 39%29.97 inHg

11:00 AM

Sunny

95° 💧 None 💨 9 mph H 34%29.97 inHg

12:00 PM

Sunny

97° 💧 None 💨 9 mph H 30%29.94 inHg

1:00 PM

Sunny

101° 💧 None 💨 9 mph H 27%29.94 inHg

2:00 PM

Partly cloudy

103° 💧 None 💨 8 mph H 25%29.91 inHg

3:00 PM

Mostly cloudy

103° 💧 None 💨 10 mph H 25%29.88 inHg

4:00 PM

Mostly cloudy

103° 💧 None 💨 10 mph H 23%29.85 inHg

5:00 PM

Mostly cloudy

103° 💧 None 💨 11 mph H 23%29.85 inHg

6:00 PM

Mostly cloudy

99° 💧 None 💨 12 mph H 28%29.85 inHg

7:00 PM

Partly cloudy

94° 💧 None 💨 7 mph H 35%29.85 inHg

8:00 PM

Clear night

89° 💧 None 💨 7 mph H 42%29.88 inHg

9:00 PM

Clear night

88° 💧 None 💨 6 mph H 42%29.88 inHg

10:00 PM

Mostly clear night

88° 💧 None 💨 6 mph H 40%29.88 inHg

11:00 PM

Mostly clear night

86° 💧 None 💨 6 mph H 44%29.88 inHg

Friday

12:00 AM

Mostly clear night

84° 💧 None 💨 6 mph H 45%29.88 inHg

1:00 AM

Clear night

83° 💧 None 💨 6 mph H 48%29.91 inHg

2:00 AM

Mostly clear night

82° 💧 None 💨 5 mph H 50%29.91 inHg

3:00 AM

Mostly clear night

82° 💧 None 💨 5 mph H 51%29.91 inHg

4:00 AM

Clear night

81° 💧 None 💨 5 mph H 53%29.91 inHg

5:00 AM

Clear night

80° 💧 None 💨 4 mph H 54%29.91 inHg

6:00 AM

Clear night

79° 💧 None 💨 5 mph H 55%29.91 inHg

7:00 AM

Sunny

79° 💧 None 💨 6 mph H 55%29.91 inHg

8:00 AM

Sunny

83° 💧 None 💨 7 mph H 49%29.94 inHg

9:00 AM

Sunny

88° 💧 None 💨 7 mph H 44%29.97 inHg

10:00 AM

Sunny

93° 💧 None 💨 7 mph H 39%29.97 inHg

11:00 AM

Sunny

97° 💧 None 💨 7 mph H 35%29.97 inHg

12:00 PM

Sunny

99° 💧 None 💨 7 mph H 31%29.94 inHg

1:00 PM

Sunny

101° 💧 None 💨 7 mph H 28%29.91 inHg

2:00 PM

Sunny

103° 💧 None 💨 7 mph H 26%29.91 inHg

3:00 PM

Mostly cloudy

103° 💧 None 💨 7 mph H 24%29.88 inHg

4:00 PM

Mostly cloudy

103° 💧 None 💨 6 mph H 24%29.85 inHg

5:00 PM

Mostly cloudy

103° 💧 None 💨 8 mph H 23%29.83 inHg

6:00 PM

Mostly cloudy

100° 💧 None 💨 8 mph H 27%29.83 inHg

7:00 PM

Mostly cloudy

96° 💧 None 💨 5 mph H 33%29.85 inHg

8:00 PM

Overcast night

92° 💧 None 💨 5 mph H 37%29.85 inHg

9:00 PM

Overcast night

89° 💧 None 💨 5 mph H 42%29.85 inHg

10:00 PM

Mostly cloudy night

87° 💧 None 💨 5 mph H 44%29.88 inHg

11:00 PM

Mostly cloudy night

87° 💧 None 💨 5 mph H 45%29.85 inHg

Saturday

12:00 AM

Mostly cloudy night

85° 💧 None 💨 5 mph H 47%29.88 inHg

1:00 AM

Mostly cloudy night

85° 💧 None 💨 5 mph H 47%29.88 inHg

2:00 AM

Overcast night

85° 💧 None 💨 5 mph H 46%29.88 inHg

3:00 AM

Overcast night

85° 💧 None 💨 4 mph H 45%29.88 inHg

4:00 AM

Overcast night

84° 💧 None 💨 1 mph H 47%29.88 inHg

5:00 AM

Overcast night

82° 💧 None 💨 2 mph H 51%29.88 inHg

6:00 AM

Mostly cloudy night

81° 💧 None 💨 5 mph H 52%29.88 inHg

7:00 AM

Overcast

81° 💧 None 💨 5 mph H 52%29.91 inHg

8:00 AM

Overcast

85° 💧 None 💨 5 mph H 48%29.91 inHg

9:00 AM

Light rain

87° 💧 0.01 in 💨 6 mph H 46%29.91 inHg

10:00 AM

Light rain

91° 💧 0.00 in 💨 6 mph H 42%29.94 inHg

11:00 AM

Mostly cloudy

96° 💧 None 💨 7 mph H 35%29.91 inHg

12:00 PM

Mostly cloudy

99° 💧 None 💨 7 mph H 31%29.91 inHg

1:00 PM

Mostly cloudy

101° 💧 None 💨 7 mph H 28%29.88 inHg

2:00 PM

Partly cloudy

103° 💧 None 💨 7 mph H 25%29.85 inHg

3:00 PM

Mostly sunny

104° 💧 None 💨 7 mph H 23%29.83 inHg

4:00 PM

Mostly sunny

103° 💧 None 💨 8 mph H 23%29.80 inHg

5:00 PM

Mostly sunny

100° 💧 None 💨 9 mph H 27%29.80 inHg

6:00 PM

Light rain

82° 💧 0.00 in 💨 18 mph H 64%29.85 inHg

7:00 PM

Partly cloudy

81° 💧 None 💨 10 mph H 61%29.85 inHg

8:00 PM

Light rain

76° 💧 0.02 in 💨 7 mph H 76%29.94 inHg

9:00 PM

Mostly cloudy night

74° 💧 None 💨 9 mph H 89%29.91 inHg

10:00 PM

Mostly cloudy night

75° 💧 None 💨 7 mph H 90%29.91 inHg

11:00 PM

Mostly cloudy night

74° 💧 None 💨 7 mph H 92%29.91 inHg

In Affton and, more broadly, across the state of Missouri: Clear skies will dominate the evening, with temperatures remaining very hot, ranging from 95 to 98 degrees Fahrenheit. Winds will be moderate, blowing from the south at speeds up to 10 mph, with gusts reaching 27 mph. No precipitation is expected during the next few hours. It will stay dry and warm through the night, so outdoor activities should be planned accordingly, and precautions for heat and sun exposure remain important. The wind may provide some relief but stay hydrated and take necessary safety measures. Temperatures will gradually remain high as the evening progresses.

15-Day Weather Outlook for Affton

TomorrowTomorrow

Sunny 103°/76° 💧 None 💨 9 mph

Thursday, Sep 3Thu Sep 3

Sunny 103°/76° 💧 None 💨 12 mph

Friday, Sep 4Fri Sep 4

Sunny 103°/79° 💧 None 💨 8 mph

Saturday, Sep 5Sat Sep 5

Light rain 103°/75° 💧 0.04 in 💨 10 mph

Sunday, Sep 6Sun Sep 6

Mostly cloudy 98°/71° 💧 None 💨 9 mph

Monday, Sep 7Mon Sep 7

Light rain 94°/71° 💧 0.18 in 💨 13 mph

Tuesday, Sep 8Tue Sep 8

Moderate rain 89°/72° 💧 0.71 in 💨 14 mph

Wednesday, Sep 9Wed Sep 9

Light rain 102°/74° 💧 0.10 in 💨 14 mph

Thursday, Sep 10Thu Sep 10

Light rain 84°/70° 💧 0.02 in 💨 11 mph

Friday, Sep 11Fri Sep 11

Light rain 70°/62° 💧 0.03 in 💨 8 mph

Saturday, Sep 12Sat Sep 12

Light rain 78°/62° 💧 0.03 in 💨 15 mph

Sunday, Sep 13Sun Sep 13

Sunny 80°/56° 💧 None 💨 6 mph

Monday, Sep 14Mon Sep 14

Mostly cloudy 88°/63° 💧 None 💨 10 mph

Tuesday, Sep 15Tue Sep 15

Sunny 97°/69° 💧 None 💨 10 mph

Wednesday, Sep 16Wed Sep 16

Mostly cloudy 99°/66° 💧 None 💨 8 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Affton

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Affton

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 12:00 AM

PM2.5 Fine particles Good 5,4µg/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 5,6µg/m³

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

O₃ Ozone Fair 60,3µg/m³

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

NO₂ Nitrogen dioxide Good 1,3µg/m³

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

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Affton

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 8,4Very high —Unavailable

Tomorrow UV 8,7Very high 🙂Fair

Thursday UV 8,7Very high 🙂Fair

Friday UV 8,3Very high 🙂Fair

Saturday UV 8,0Very high 🙂Fair

Sunday UV 8,0Very high —Unavailable

Monday UV 8,0Very high —Unavailable

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.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged 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 Affton

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

Internal PR simulation: 4.46 Population: 19,052

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Forecast data for Affton were last refreshed today at 11:15 PM. The current forecast period extends through 03/09/2026 at 9:00 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.