St. Louis Regional Airport Alton, IL Weather

    08:00 Saturday
    Overcast
    Overcast
    7° Feels like 5°
    Moderate southeast wind Southeast 13 - 24 km/h
    • Today 27 Dec. Partly cloudy 17° / 5° Moderate southeast wind 20 - 39 km/h
    • Tomorrow 28 Dec. Light rain with partly cloudy skies 80% 4.2 mm 21° / -3° Strong northwest wind 35 - 66 km/h
    • Monday 29 Dec. Scattered clouds -2° / -9° Strong northwest wind 34 - 65 km/h
    • Tuesday 30 Dec. Scattered clouds 0° / -8° Moderate northwest wind 18 - 39 km/h
    • Wednesday 31 Dec. Scattered clouds 7° / -2° Moderate west wind 15 - 31 km/h
    • Thursday 1 Jan. Scattered clouds 1° / -7° Moderate north wind 13 - 31 km/h
    • Friday 2 Jan. Scattered clouds 3° / -8° Moderate southeast wind 6 - 20 km/h

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

    , 27 December

    Tomorrow

    , 28 December
    09:00 Overcast 7° Overcast
    Feels Like 5°
    Moderate southeast wind Southeast 13 - 24 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 96%
    • Dew Point Dew Point 7 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 5 °C
    • Visibility Visibility 18 km
    • Wind Wind - Average 13 km/h
    • Pressure Pressure 1015 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 24 km/h
    • Snowline Snowline 13123 ft
    10:00 Overcast 9° Overcast
    Feels Like 7°
    Moderate southeast wind Southeast 14 - 28 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 90%
    • Dew Point Dew Point 8 °C
    • Clouds Clouds 98%
    • Feels Like Feels Like 7 °C
    • Visibility Visibility 25 km
    • Wind Wind - Average 14 km/h
    • Pressure Pressure 1015 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 28 km/h
    • Snowline Snowline 13123 ft
    11:00 Scattered clouds 12° Scattered clouds
    Feels Like 12°
    Moderate southeast wind Southeast 15 - 32 km/h
    		UV Index 2 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 80%
    • Dew Point Dew Point 9 °C
    • Clouds Clouds 45%
    • Feels Like Feels Like 12 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 15 km/h
    • Pressure Pressure 1014 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 32 km/h
    • Snowline Snowline 13123 ft
    12:00 Overcast 16° Overcast
    Feels Like 16°
    Moderate southeast wind Southeast 20 - 37 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 74%
    • Dew Point Dew Point 11 °C
    • Clouds Clouds 98%
    • Feels Like Feels Like 16 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 20 km/h
    • Pressure Pressure 1012 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 37 km/h
    • Snowline Snowline 13123 ft
    13:00 Overcast 16° Overcast
    Feels Like 16°
    Moderate south wind South 17 - 38 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 75%
    • Dew Point Dew Point 12 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 16 °C
    • Visibility Visibility 25 km
    • Wind Wind - Average 17 km/h
    • Pressure Pressure 1011 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 38 km/h
    • Snowline Snowline 13451 ft
    Overcast 14:00 Overcast 16° Overcast
    Feels Like 16°
    Moderate south wind South 17 - 34 km/h
    		UV Index 1 Low SPF: no
    14:00 Overcast 16° Overcast
    Feels Like 16°
    Moderate south wind South 17 - 34 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 79%
    • Dew Point Dew Point 12 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 16 °C
    • Visibility Visibility 25 km
    • Wind Wind - Average 17 km/h
    • Pressure Pressure 1010 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 34 km/h
    • Snowline Snowline 13451 ft
    15:00 Overcast 15° Overcast
    Feels Like 15°
    Moderate southeast wind Southeast 16 - 32 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 85%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 15 °C
    • Visibility Visibility 20 km
    • Wind Wind - Average 16 km/h
    • Pressure Pressure 1010 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 32 km/h
    • Snowline Snowline 13451 ft
    16:00 Overcast 14° Overcast
    Feels Like 14°
    Moderate southeast wind Southeast 15 - 30 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 89%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 14 °C
    • Visibility Visibility 25 km
    • Wind Wind - Average 15 km/h
    • Pressure Pressure 1010 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 30 km/h
    • Snowline Snowline 13451 ft
    Partly cloudy 17:00 Partly cloudy 14° Partly cloudy
    Feels Like 14°
    Moderate southeast wind Southeast 17 - 30 km/h
    		UV Index 0 Low SPF: no
    17:00 Overcast 14° Overcast
    Feels Like 14°
    Moderate southeast wind Southeast 17 - 30 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 92%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 93%
    • Feels Like Feels Like 14 °C
    • Visibility Visibility 25 km
    • Wind Wind - Average 17 km/h
    • Pressure Pressure 1009 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 30 km/h
    • Snowline Snowline 13451 ft
    18:00 Partly cloudy 14° Partly cloudy
    Feels Like 14°
    Moderate southeast wind Southeast 15 - 30 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 95%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 64%
    • Feels Like Feels Like 14 °C
    • Visibility Visibility 16 km
    • Wind Wind - Average 15 km/h
    • Pressure Pressure 1009 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 30 km/h
    • Snowline Snowline 13451 ft
    19:00 Overcast 13° Overcast
    Feels Like 13°
    Moderate southeast wind Southeast 14 - 27 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 96%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 98%
    • Feels Like Feels Like 13 °C
    • Visibility Visibility 16 km
    • Wind Wind - Average 14 km/h
    • Pressure Pressure 1009 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 27 km/h
    • Snowline Snowline 13123 ft
    Partly cloudy 20:00 Partly cloudy 14° Partly cloudy
    Feels Like 14°
    Moderate southeast wind Southeast 14 - 26 km/h
    		UV Index 0 Low SPF: no
    20:00 Overcast 14° Overcast
    Feels Like 14°
    Moderate southeast wind Southeast 14 - 26 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 10% 0 mm
    • Humidity Humidity 96%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 95%
    • Feels Like Feels Like 14 °C
    • Visibility Visibility 18 km
    • Wind Wind - Average 14 km/h
    • Pressure Pressure 1009 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 26 km/h
    • Snowline Snowline 12795 ft
    21:00 Partly cloudy 14° Partly cloudy
    Feels Like 14°
    Moderate southeast wind Southeast 15 - 25 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 96%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 62%
    • Feels Like Feels Like 14 °C
    • Visibility Visibility 18 km
    • Wind Wind - Average 15 km/h
    • Pressure Pressure 1008 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 25 km/h
    • Snowline Snowline 12795 ft
    22:00 Partly cloudy 14° Partly cloudy
    Feels Like 14°
    Moderate southeast wind Southeast 12 - 25 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 10% 0 mm
    • Humidity Humidity 97%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 65%
    • Feels Like Feels Like 14 °C
    • Visibility Visibility 16 km
    • Wind Wind - Average 12 km/h
    • Pressure Pressure 1008 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 25 km/h
    • Snowline Snowline 12467 ft
    Partly cloudy 23:00 Partly cloudy 14° Partly cloudy
    Feels Like 14°
    Moderate south wind South 12 - 20 km/h
    		UV Index 0 Low SPF: no
    23:00 Partly cloudy 14° Partly cloudy
    Feels Like 14°
    Moderate south wind South 12 - 20 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 10% 0 mm
    • Humidity Humidity 97%
    • Dew Point Dew Point 14 °C
    • Clouds Clouds 77%
    • Feels Like Feels Like 14 °C
    • Visibility Visibility 18 km
    • Wind Wind - Average 12 km/h
    • Pressure Pressure 1008 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 20 km/h
    • Snowline Snowline 12467 ft
    24:00 Partly cloudy 15° Partly cloudy
    Feels Like 15°
    Moderate south wind South 14 - 23 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 10% 0 mm
    • Humidity Humidity 97%
    • Dew Point Dew Point 14 °C
    • Clouds Clouds 91%
    • Feels Like Feels Like 15 °C
    • Visibility Visibility 18 km
    • Wind Wind - Average 14 km/h
    • Pressure Pressure 1007 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 23 km/h
    • Snowline Snowline 12139 ft

    Sunrise and Sunset

    Sunrise 07:17 Sunset 16:45
    First light 06:47 Midday 12:01 Last light 17:15
    Day length 9h 28m

    Remaining daylight 8h 3m

    Lunar calendar

    Mon Tue Wed Thu Fri Sat Sun
    27 First Quarter
    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

    Air quality in St. Louis Regional Airport Alton today

    Detail
    28
    Fair PM₂₅ (15 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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