St. Louis Regional Airport Alton, IL Weather

    07:00 Sunday
    Overcast
    Overcast
    18° Feels like 18°
    Moderate south wind South 20 - 34 km/h
    • Today 28 Dec. Light rain with partly cloudy skies 60% 0.5 mm 23° / -4° Strong west wind 35 - 71 km/h
    • Tomorrow 29 Dec. Scattered clouds 0° / -9° Strong northwest wind 34 - 66 km/h
    • Tuesday 30 Dec. Scattered clouds 1° / -8° Moderate northwest wind 17 - 33 km/h
    • Wednesday 31 Dec. Scattered clouds 6° / -2° Moderate west wind 14 - 35 km/h
    • Thursday 1 Jan. Scattered clouds -1° / -5° Moderate north wind 19 - 37 km/h
    • Friday 2 Jan. Partly cloudy 3° / -5° Moderate southeast wind 13 - 27 km/h
    • Saturday 3 Jan. Partly cloudy 6° / -2° Moderate east wind 9 - 20 km/h

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

    , 28 December

    Tomorrow

    , 29 December
    08:00 Overcast 18° Overcast
    Feels Like 18°
    Moderate south wind South 20 - 34 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 96%
    • Dew Point Dew Point 17 °C
    • Clouds Clouds 99%
    • Feels Like Feels Like 18 °C
    • Visibility Visibility 16 km
    • Wind Wind - Average 20 km/h
    • Pressure Pressure 1004 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 34 km/h
    • Snowline Snowline 12467 ft
    09:00 Overcast 18° Overcast
    Feels Like 18°
    Moderate south wind South 20 - 34 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 10% 0 mm
    • Humidity Humidity 93%
    • Dew Point Dew Point 17 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 18 °C
    • Visibility Visibility 20 km
    • Wind Wind - Average 20 km/h
    • Pressure Pressure 1004 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 34 km/h
    • Snowline Snowline 12467 ft
    10:00 Partly cloudy 19° Partly cloudy
    Feels Like 19°
    Moderate south wind South 23 - 41 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 10% 0 mm
    • Humidity Humidity 86%
    • Dew Point Dew Point 17 °C
    • Clouds Clouds 84%
    • Feels Like Feels Like 19 °C
    • Visibility Visibility 30 km
    • Wind Wind - Average 23 km/h
    • Pressure Pressure 1003 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 41 km/h
    • Snowline Snowline 12467 ft
    11:00 Scattered clouds 21° Scattered clouds
    Feels Like 21°
    Moderate southwest wind Southwest 24 - 46 km/h
    		UV Index 2 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 78%
    • Dew Point Dew Point 17 °C
    • Clouds Clouds 48%
    • Feels Like Feels Like 21 °C
    • Visibility Visibility 25 km
    • Wind Wind - Average 24 km/h
    • Pressure Pressure 1002 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 46 km/h
    • Snowline Snowline 12467 ft
    12:00 Partly cloudy 22° Partly cloudy
    Feels Like 22°
    Moderate southwest wind Southwest 24 - 48 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 72%
    • Dew Point Dew Point 17 °C
    • Clouds Clouds 89%
    • Feels Like Feels Like 22 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 24 km/h
    • Pressure Pressure 1001 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 48 km/h
    • Snowline Snowline 12467 ft
    13:00 Light rain with partly cloudy skies 30% 0.008 mm 22° Light rain
    Feels Like 22°
    Moderate southwest wind Southwest 24 - 47 km/h
    		UV Index 2 Low SPF: no
    • Rain Rain 30% 0.008 mm
    • Humidity Humidity 74%
    • Dew Point Dew Point 17 °C
    • Clouds Clouds 53%
    • Feels Like Feels Like 22 °C
    • Visibility Visibility 9 km
    • Wind Wind - Average 24 km/h
    • Pressure Pressure 1000 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 47 km/h
    • Snowline Snowline 12467 ft
    Light rain 14:00 Light rain with partly cloudy skies 30% 0.004 mm 22° Light rain
    Feels Like 24°
    Moderate southwest wind Southwest 24 - 45 km/h
    		UV Index 1 Low SPF: no
    14:00 Light rain with partly cloudy skies 40% 0.4 mm 22° Light rain
    Feels Like 24°
    Moderate southwest wind Southwest 24 - 45 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 30% 0.004 mm
    • Humidity Humidity 71%
    • Dew Point Dew Point 17 °C
    • Clouds Clouds 38%
    • Feels Like Feels Like 24 °C
    • Visibility Visibility 14 km
    • Wind Wind - Average 24 km/h
    • Pressure Pressure 1000 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 45 km/h
    • Snowline Snowline 12139 ft
    15:00 Light rain with partly cloudy skies 40% 0.004 mm 21° Light rain
    Feels Like 21°
    Strong west wind West 29 - 51 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 40% 0.004 mm
    • Humidity Humidity 68%
    • Dew Point Dew Point 15 °C
    • Clouds Clouds 90%
    • Feels Like Feels Like 21 °C
    • Visibility Visibility 16 km
    • Wind Wind - Average 29 km/h
    • Pressure Pressure 1000 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 51 km/h
    • Snowline Snowline 11483 ft
    16:00 Light rain with partly cloudy skies 30% 0.004 mm 14° Light rain
    Feels Like 14°
    Strong west wind West 33 - 71 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 30% 0.004 mm
    • Humidity Humidity 75%
    • Dew Point Dew Point 10 °C
    • Clouds Clouds 78%
    • Feels Like Feels Like 14 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 33 km/h
    • Pressure Pressure 1004 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 71 km/h
    • Snowline Snowline 10827 ft
    Overcast 17:00 Overcast 9° Overcast
    Feels Like 6°
    Strong west wind West 34 - 66 km/h
    		UV Index 0 Low SPF: no
    17:00 Light rain with partly cloudy skies 30% 0.1 mm 9° Light rain
    Feels Like 6°
    Strong west wind West 34 - 66 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 72%
    • Dew Point Dew Point 4 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 6 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 34 km/h
    • Pressure Pressure 1007 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 66 km/h
    • Snowline Snowline 9514 ft
    18:00 Overcast 6° Overcast
    Feels Like 1°
    Strong west wind West 35 - 67 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 68%
    • Dew Point Dew Point 0 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 1 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 35 km/h
    • Pressure Pressure 1010 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 67 km/h
    • Snowline Snowline 9186 ft
    19:00 Partly cloudy 3° Partly cloudy
    Feels Like -2°
    Strong northwest wind Northwest 30 - 65 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 62%
    • Dew Point Dew Point -3 °C
    • Clouds Clouds 61%
    • Feels Like Feels Like -2 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 30 km/h
    • Pressure Pressure 1012 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 65 km/h
    • Snowline Snowline 3609 ft
    Scattered clouds 20:00 Scattered clouds 2° Scattered clouds
    Feels Like -4°
    Strong west wind West 32 - 61 km/h
    		UV Index 0 Low SPF: no
    20:00 Partly cloudy 2° Partly cloudy
    Feels Like -4°
    Strong west wind West 32 - 61 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 60%
    • Dew Point Dew Point -5 °C
    • Clouds Clouds 46%
    • Feels Like Feels Like -4 °C
    • Visibility Visibility 45 km
    • Wind Wind - Average 32 km/h
    • Pressure Pressure 1014 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 61 km/h
    • Snowline Snowline 1312 ft
    21:00 Scattered clouds 0° Scattered clouds
    Feels Like -6°
    Strong northwest wind Northwest 28 - 62 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 59%
    • Dew Point Dew Point -7 °C
    • Clouds Clouds 20%
    • Feels Like Feels Like -6 °C
    • Visibility Visibility 45 km
    • Wind Wind - Average 28 km/h
    • Pressure Pressure 1015 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 62 km/h
    • Snowline Snowline 656 ft
    22:00 Scattered clouds -1° Scattered clouds
    Feels Like -7°
    Strong west wind West 31 - 58 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 60%
    • Dew Point Dew Point -8 °C
    • Clouds Clouds 20%
    • Feels Like Feels Like -7 °C
    • Visibility Visibility 45 km
    • Wind Wind - Average 31 km/h
    • Pressure Pressure 1016 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 58 km/h
    • Snowline Snowline 0 ft
    Scattered clouds 23:00 Scattered clouds -3° Scattered clouds
    Feels Like -10°
    Strong west wind West 32 - 63 km/h
    		UV Index 0 Low SPF: no
    23:00 Scattered clouds -3° Scattered clouds
    Feels Like -10°
    Strong west wind West 32 - 63 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 57%
    • Dew Point Dew Point -10 °C
    • Clouds Clouds 18%
    • Feels Like Feels Like -10 °C
    • Visibility Visibility 45 km
    • Wind Wind - Average 32 km/h
    • Pressure Pressure 1017 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 63 km/h
    • Snowline Snowline 0 ft
    24:00 Clear skies -4° Clear
    Feels Like -12°
    Strong west wind West 31 - 60 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 55%
    • Dew Point Dew Point -12 °C
    • Clouds Clouds 8%
    • Feels Like Feels Like -12 °C
    • Visibility Visibility 45 km
    • Wind Wind - Average 31 km/h
    • Pressure Pressure 1018 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 60 km/h
    • Snowline Snowline 0 ft

    Sunrise and Sunset

    Sunrise 07:18 Sunset 16:45
    First light 06:48 Midday 12:01 Last light 17:15
    Day length 9h 28m

    Remaining daylight 9h 5m

    Lunar calendar

    Mon Tue Wed Thu Fri Sat Sun
    28 First Quarter
    29 First Quarter
    30 First Quarter
    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

    Air quality in St. Louis Regional Airport Alton today

    Detail
    25
    Fair O₃ (61 µg/m³)
    • Little health risk.
    • Sensitive people should consider reducing prolonged or intense outdoor activities if they experience symptoms.

    Weather graphs
    Maximum Minimum Rainfall

    Videos

    More Videos
    A massive blizzard unleashes chaos on the island of Hokkaido, Japan
    A massive blizzard unleashes chaos on the island of Hokkaido, Japan