St. Louis Regional Airport Alton, IL Weather

    08:00 Wednesday
    Overcast
    Overcast
    1° Feels like -2°
    Moderate northwest wind Northwest 14 - 27 km/h
    • Today 31 Dec. Scattered clouds 7° / -2° Moderate west wind 18 - 36 km/h
    • Tomorrow 1 Jan. Scattered clouds 1° / -5° Moderate northeast wind 16 - 29 km/h
    • Friday 2 Jan. Partly cloudy 5° / -4° Moderate east wind 10 - 21 km/h
    • Saturday 3 Jan. Scattered clouds 5° / -3° Moderate north wind 11 - 25 km/h
    • Sunday 4 Jan. Scattered clouds 5° / -4° Moderate south wind 16 - 29 km/h
    • Monday 5 Jan. Scattered clouds 14° / 0° Moderate south wind 13 - 28 km/h
    • Tuesday 6 Jan. Scattered clouds 16° / 3° Moderate west wind 15 - 31 km/h

    Weather Forecast for St. Louis Regional Airport Alton, IL Today

    , 31 December

    Tomorrow

    , 1 January
    09:00 Overcast 1° Overcast
    Feels Like -2°
    Moderate northwest wind Northwest 14 - 27 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 78%
    • Dew Point Dew Point -2 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like -2 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 14 km/h
    • Pressure Pressure 1020 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 27 km/h
    • Snowline Snowline 6890 ft
    10:00 Overcast 2° Overcast
    Feels Like -2°
    Moderate northwest wind Northwest 15 - 30 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 78%
    • Dew Point Dew Point -1 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like -2 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 15 km/h
    • Pressure Pressure 1020 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 30 km/h
    • Snowline Snowline 6562 ft
    11:00 Overcast 3° Overcast
    Feels Like 0°
    Moderate west wind West 14 - 30 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 75%
    • Dew Point Dew Point -1 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 0 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 14 km/h
    • Pressure Pressure 1020 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 30 km/h
    • Snowline Snowline 7546 ft
    12:00 Overcast 4° Overcast
    Feels Like 1°
    Moderate west wind West 15 - 30 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 71%
    • Dew Point Dew Point -1 °C
    • Clouds Clouds 99%
    • Feels Like Feels Like 1 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 15 km/h
    • Pressure Pressure 1018 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 30 km/h
    • Snowline Snowline 7218 ft
    13:00 Partly cloudy 5° Partly cloudy
    Feels Like 2°
    Moderate west wind West 18 - 35 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 67%
    • Dew Point Dew Point -1 °C
    • Clouds Clouds 96%
    • Feels Like Feels Like 2 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 18 km/h
    • Pressure Pressure 1017 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 35 km/h
    • Snowline Snowline 7218 ft
    Partly cloudy 14:00 Partly cloudy 6° Partly cloudy
    Feels Like 3°
    Moderate west wind West 17 - 36 km/h
    		UV Index 1 Low SPF: no
    14:00 Partly cloudy 6° Partly cloudy
    Feels Like 3°
    Moderate west wind West 17 - 36 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 63%
    • Dew Point Dew Point 0 °C
    • Clouds Clouds 57%
    • Feels Like Feels Like 3 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 17 km/h
    • Pressure Pressure 1016 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 36 km/h
    • Snowline Snowline 7874 ft
    15:00 Partly cloudy 6° Partly cloudy
    Feels Like 3°
    Moderate west wind West 15 - 33 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 66%
    • Dew Point Dew Point 0 °C
    • Clouds Clouds 55%
    • Feels Like Feels Like 3 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 15 km/h
    • Pressure Pressure 1016 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 33 km/h
    • Snowline Snowline 7874 ft
    16:00 Scattered clouds 5° Scattered clouds
    Feels Like 2°
    Moderate southwest wind Southwest 11 - 28 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 74%
    • Dew Point Dew Point 0 °C
    • Clouds Clouds 33%
    • Feels Like Feels Like 2 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 11 km/h
    • Pressure Pressure 1016 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 28 km/h
    • Snowline Snowline 7546 ft
    Scattered clouds 17:00 Scattered clouds 2° Scattered clouds
    Feels Like 0°
    Moderate southwest wind Southwest 10 - 20 km/h
    		UV Index 0 Low SPF: no
    17:00 Scattered clouds 2° Scattered clouds
    Feels Like 0°
    Moderate southwest wind Southwest 10 - 20 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 85%
    • Dew Point Dew Point 0 °C
    • Clouds Clouds 37%
    • Feels Like Feels Like 0 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 10 km/h
    • Pressure Pressure 1015 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 20 km/h
    • Snowline Snowline 6562 ft
    18:00 Clear skies 2° Clear
    Feels Like -1°
    Gentle southwest wind Southwest 11 - 19 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 86%
    • Dew Point Dew Point 0 °C
    • Clouds Clouds 8%
    • Feels Like Feels Like -1 °C
    • Visibility Visibility 30 km
    • Wind Wind - Average 11 km/h
    • Pressure Pressure 1015 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 19 km/h
    • Snowline Snowline 6234 ft
    19:00 Scattered clouds 2° Scattered clouds
    Feels Like -1°
    Moderate southwest wind Southwest 12 - 20 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 87%
    • Dew Point Dew Point 0 °C
    • Clouds Clouds 24%
    • Feels Like Feels Like -1 °C
    • Visibility Visibility 30 km
    • Wind Wind - Average 12 km/h
    • Pressure Pressure 1015 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 20 km/h
    • Snowline Snowline 5906 ft
    Scattered clouds 20:00 Scattered clouds 1° Scattered clouds
    Feels Like -1°
    Moderate west wind West 11 - 20 km/h
    		UV Index 0 Low SPF: no
    20:00 Scattered clouds 1° Scattered clouds
    Feels Like -1°
    Moderate west wind West 11 - 20 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 88%
    • Dew Point Dew Point 0 °C
    • Clouds Clouds 33%
    • Feels Like Feels Like -1 °C
    • Visibility Visibility 30 km
    • Wind Wind - Average 11 km/h
    • Pressure Pressure 1015 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 20 km/h
    • Snowline Snowline 5577 ft
    21:00 Scattered clouds 1° Scattered clouds
    Feels Like -2°
    Gentle west wind West 9 - 18 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 89%
    • Dew Point Dew Point -1 °C
    • Clouds Clouds 14%
    • Feels Like Feels Like -2 °C
    • Visibility Visibility 30 km
    • Wind Wind - Average 9 km/h
    • Pressure Pressure 1015 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 18 km/h
    • Snowline Snowline 5249 ft
    22:00 Clear skies 1° Clear
    Feels Like -2°
    Gentle west wind West 9 - 15 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 89%
    • Dew Point Dew Point -1 °C
    • Clouds Clouds 2%
    • Feels Like Feels Like -2 °C
    • Visibility Visibility 30 km
    • Wind Wind - Average 9 km/h
    • Pressure Pressure 1015 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 15 km/h
    • Snowline Snowline 4921 ft
    Clear 23:00 Clear skies 0° Clear
    Feels Like -2°
    Gentle west wind West 8 - 14 km/h
    		UV Index 0 Low SPF: no
    23:00 Clear skies 0° Clear
    Feels Like -2°
    Gentle west wind West 8 - 14 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 90%
    • Dew Point Dew Point -1 °C
    • Clouds Clouds 0%
    • Feels Like Feels Like -2 °C
    • Visibility Visibility 30 km
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1015 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 14 km/h
    • Snowline Snowline 4265 ft
    24:00 Clear skies 0° Clear
    Feels Like -3°
    Gentle northwest wind Northwest 8 - 15 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 92%
    • Dew Point Dew Point -1 °C
    • Clouds Clouds 0%
    • Feels Like Feels Like -3 °C
    • Visibility Visibility 25 km
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1015 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 15 km/h
    • Snowline Snowline 6890 ft

    Sunrise and Sunset

    Sunrise 07:18 Sunset 16:48
    First light 06:48 Midday 12:03 Last light 17:18
    Day length 9h 30m

    Remaining daylight 8h 5m

    Lunar calendar

    Mon Tue Wed Thu Fri Sat Sun
    31 First Quarter
    1 First Quarter
    2 Full Moon
    3 Full Moon
    4 Full Moon
    5 Last Quarter
    6 Last Quarter
    7 Last Quarter
    8 Last Quarter
    9 Last Quarter
    10 Last Quarter
    11 Last Quarter
    12 Last Quarter
    13 Last Quarter

    Air quality in St. Louis Regional Airport Alton today

    Detail
    32
    Fair O₃ (78 µg/m³)
    • Little health risk.
    • Sensitive people should consider reducing prolonged or intense outdoor activities if they experience symptoms.

    Weather graphs
    Maximum Minimum Rainfall

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