St. Louis Regional Airport Alton, IL Weather

    01:00 Thursday
    Scattered clouds
    Scattered clouds
    13° Feels like 13°
    First Quarter First Quarter Illuminated: 29%
    • Today 25 Dec. Fog More information 16° / 11° Moderate southeast wind 13 - 22 km/h
    • Tomorrow 26 Dec. Light rain with partly cloudy skies 30% 0.4 mm 18° / 7° Moderate west wind 16 - 33 km/h
    • Saturday 27 Dec. Partly cloudy 17° / 6° Moderate south wind 17 - 30 km/h
    • Sunday 28 Dec. Rain and snow with cloudy skies 90% 12 mm 16° / -2° Strong northwest wind 27 - 52 km/h
    • Monday 29 Dec. Clear -1° / -8° Strong northwest wind 29 - 54 km/h
    • Tuesday 30 Dec. Clear 3° / -7° Moderate southwest wind 15 - 34 km/h
    • Wednesday 31 Dec. Scattered clouds 10° / -2° Moderate west wind 16 - 34 km/h

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

    , 25 December

    Tomorrow

    , 26 December
    01:00 Scattered clouds 13° Scattered clouds
    Feels Like 13°
    Gentle west wind West 9 - 18 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 98%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 27%
    • Feels Like Feels Like 13 °C
    • Visibility Visibility 18 km
    • Wind Wind - Average 9 km/h
    • Pressure Pressure 1017 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 18 km/h
    • Snowline Snowline 14108 ft
    02:00 Scattered clouds 13° Scattered clouds
    Feels Like 13°
    Gentle west wind West 8 - 14 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 99%
    • Dew Point Dew Point 12 °C
    • Clouds Clouds 43%
    • Feels Like Feels Like 13 °C
    • Visibility Visibility 16 km
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1017 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 14 km/h
    • Snowline Snowline 14108 ft
    03:00 Overcast 12° Overcast
    Feels Like 12°
    Gentle west wind West 7 - 13 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 99%
    • Dew Point Dew Point 12 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 12 °C
    • Visibility Visibility 16 km
    • Wind Wind - Average 7 km/h
    • Pressure Pressure 1017 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 13 km/h
    • Snowline Snowline 14108 ft
    04:00 Overcast 12° Overcast
    Feels Like 12°
    Gentle west wind West 6 - 10 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 100%
    • Dew Point Dew Point 12 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 12 °C
    • Visibility Visibility 14 km
    • Wind Wind - Average 6 km/h
    • Pressure Pressure 1017 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 10 km/h
    • Snowline Snowline 13780 ft
    Overcast 05:00 Overcast 12° Overcast
    Feels Like 12°
    Gentle west wind West 5 - 10 km/h
    		UV Index 0 Low SPF: no
    05:00 Overcast 12° Overcast
    Feels Like 12°
    Gentle west wind West 5 - 10 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 100%
    • Dew Point Dew Point 12 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 12 °C
    • Visibility Visibility 14 km
    • Wind Wind - Average 5 km/h
    • Pressure Pressure 1017 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 10 km/h
    • Snowline Snowline 14108 ft
    06:00 Overcast 12° Overcast
    Feels Like 12°
    Gentle northwest wind Northwest 4 - 8 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 100%
    • Dew Point Dew Point 12 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 12 °C
    • Visibility Visibility 1 km
    • Wind Wind - Average 4 km/h
    • Pressure Pressure 1018 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 8 km/h
    • Snowline Snowline 14108 ft
    07:00 Fog 12° Fog
    Feels Like 12°
    Gentle north wind North 3 - 5 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 100%
    • Dew Point Dew Point 12 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 12 °C
    • Visibility Visibility 300 m
    • Wind Wind - Average 3 km/h
    • Pressure Pressure 1018 hPa
    • Fog Fog Yes
    • Wind - Gusts Wind - Gusts 5 km/h
    • Snowline Snowline 14108 ft
    Fog 08:00 Fog 12° Fog
    Feels Like 12°
    Gentle northeast wind Northeast 2 - 3 km/h
    		UV Index 0 Low SPF: no
    08:00 Fog 12° Fog
    Feels Like 12°
    Gentle northeast wind Northeast 2 - 3 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 100%
    • Dew Point Dew Point 12 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 12 °C
    • Visibility Visibility 300 m
    • Wind Wind - Average 2 km/h
    • Pressure Pressure 1018 hPa
    • Fog Fog Yes
    • Wind - Gusts Wind - Gusts 3 km/h
    • Snowline Snowline 14108 ft
    09:00 Fog 13° Fog
    Feels Like 13°
    Gentle northeast wind Northeast 4 - 9 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 99%
    • Dew Point Dew Point 12 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 13 °C
    • Visibility Visibility 700 m
    • Wind Wind - Average 4 km/h
    • Pressure Pressure 1018 hPa
    • Fog Fog Yes
    • Wind - Gusts Wind - Gusts 9 km/h
    • Snowline Snowline 14108 ft
    10:00 Overcast 14° Overcast
    Feels Like 14°
    Gentle northeast wind Northeast 3 - 10 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 97%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 14 °C
    • Visibility Visibility 9 km
    • Wind Wind - Average 3 km/h
    • Pressure Pressure 1018 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 10 km/h
    • Snowline Snowline 14108 ft
    Overcast 11:00 Overcast 14° Overcast
    Feels Like 14°
    Gentle east wind East 3 - 10 km/h
    		UV Index 1 Low SPF: no
    11:00 Overcast 14° Overcast
    Feels Like 14°
    Gentle east wind East 3 - 10 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 95%
    • Dew Point Dew Point 14 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 14 °C
    • Visibility Visibility 6 km
    • Wind Wind - Average 3 km/h
    • Pressure Pressure 1018 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 10 km/h
    • Snowline Snowline 14108 ft
    12:00 Overcast 15° Overcast
    Feels Like 15°
    Gentle southeast wind Southeast 4 - 11 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 94%
    • Dew Point Dew Point 14 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 15 °C
    • Visibility Visibility 8 km
    • Wind Wind - Average 4 km/h
    • Pressure Pressure 1017 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 11 km/h
    • Snowline Snowline 13780 ft
    13:00 Overcast 15° Overcast
    Feels Like 15°
    Gentle southeast wind Southeast 5 - 12 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 94%
    • Dew Point Dew Point 14 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 15 °C
    • Visibility Visibility 12 km
    • Wind Wind - Average 5 km/h
    • Pressure Pressure 1016 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 12 km/h
    • Snowline Snowline 13780 ft
    Overcast 14:00 Overcast 16° Overcast
    Feels Like 16°
    Gentle southeast wind Southeast 7 - 15 km/h
    		UV Index 1 Low SPF: no
    14:00 Overcast 16° Overcast
    Feels Like 16°
    Gentle southeast wind Southeast 7 - 15 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 93%
    • Dew Point Dew Point 14 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 16 °C
    • Visibility Visibility 16 km
    • Wind Wind - Average 7 km/h
    • Pressure Pressure 1015 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 15 km/h
    • Snowline Snowline 13780 ft
    15:00 Overcast 16° Overcast
    Feels Like 16°
    Gentle southeast wind Southeast 6 - 15 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 94%
    • Dew Point Dew Point 15 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 16 °C
    • Visibility Visibility 10 km
    • Wind Wind - Average 6 km/h
    • Pressure Pressure 1015 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 15 km/h
    • Snowline Snowline 13780 ft
    16:00 Partly cloudy 15° Partly cloudy
    Feels Like 15°
    Gentle southeast wind Southeast 4 - 12 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 96%
    • Dew Point Dew Point 15 °C
    • Clouds Clouds 92%
    • Feels Like Feels Like 15 °C
    • Visibility Visibility 18 km
    • Wind Wind - Average 4 km/h
    • Pressure Pressure 1015 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 12 km/h
    • Snowline Snowline 14108 ft
    Partly cloudy 17:00 Partly cloudy 15° Partly cloudy
    Feels Like 15°
    Gentle east wind East 7 - 11 km/h
    		UV Index 0 Low SPF: no
    17:00 Partly cloudy 15° Partly cloudy
    Feels Like 15°
    Gentle east wind East 7 - 11 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 97%
    • Dew Point Dew Point 15 °C
    • Clouds Clouds 67%
    • Feels Like Feels Like 15 °C
    • Visibility Visibility 18 km
    • Wind Wind - Average 7 km/h
    • Pressure Pressure 1014 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 11 km/h
    • Snowline Snowline 14108 ft
    18:00 Scattered clouds 14° Scattered clouds
    Feels Like 14°
    Gentle east wind East 10 - 15 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 98%
    • Dew Point Dew Point 14 °C
    • Clouds Clouds 13%
    • Feels Like Feels Like 14 °C
    • Visibility Visibility 18 km
    • Wind Wind - Average 10 km/h
    • Pressure Pressure 1014 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 15 km/h
    • Snowline Snowline 13780 ft
    19:00 Scattered clouds 13° Scattered clouds
    Feels Like 13°
    Gentle east wind East 10 - 17 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 99%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 14%
    • Feels Like Feels Like 13 °C
    • Visibility Visibility 16 km
    • Wind Wind - Average 10 km/h
    • Pressure Pressure 1013 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 17 km/h
    • Snowline Snowline 13780 ft
    Scattered clouds 20:00 Scattered clouds 13° Scattered clouds
    Feels Like 13°
    Moderate southeast wind Southeast 12 - 21 km/h
    		UV Index 0 Low SPF: no
    20:00 Scattered clouds 13° Scattered clouds
    Feels Like 13°
    Moderate southeast wind Southeast 12 - 21 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 99%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 31%
    • Feels Like Feels Like 13 °C
    • Visibility Visibility 12 km
    • Wind Wind - Average 12 km/h
    • Pressure Pressure 1013 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 21 km/h
    • Snowline Snowline 13451 ft
    21:00 Scattered clouds 13° Scattered clouds
    Feels Like 13°
    Moderate southeast wind Southeast 13 - 22 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 98%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 16%
    • Feels Like Feels Like 13 °C
    • Visibility Visibility 12 km
    • Wind Wind - Average 13 km/h
    • Pressure Pressure 1012 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 22 km/h
    • Snowline Snowline 13123 ft
    22:00 Scattered clouds 13° Scattered clouds
    Feels Like 13°
    Moderate southeast wind Southeast 12 - 22 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 98%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 25%
    • Feels Like Feels Like 13 °C
    • Visibility Visibility 18 km
    • Wind Wind - Average 12 km/h
    • Pressure Pressure 1011 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 22 km/h
    • Snowline Snowline 13451 ft
    Scattered clouds 23:00 Scattered clouds 14° Scattered clouds
    Feels Like 14°
    Moderate south wind South 12 - 21 km/h
    		UV Index 0 Low SPF: no
    23:00 Scattered clouds 14° Scattered clouds
    Feels Like 14°
    Moderate south wind South 12 - 21 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 97%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 50%
    • Feels Like Feels Like 14 °C
    • Visibility Visibility 18 km
    • Wind Wind - Average 12 km/h
    • Pressure Pressure 1010 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 21 km/h
    • Snowline Snowline 13451 ft
    24:00 Scattered clouds 14° Scattered clouds
    Feels Like 14°
    Moderate south wind South 12 - 21 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 97%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 50%
    • Feels Like Feels Like 14 °C
    • Visibility Visibility 18 km
    • Wind Wind - Average 12 km/h
    • Pressure Pressure 1010 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 21 km/h
    • Snowline Snowline 13451 ft

    Sunrise and Sunset

    Sunrise 07:17 Sunset 16:43
    First light 06:47 Midday 12:00 Last light 17:13
    Day length 9h 27m

    Time remaining until sunrise 6h 15m

    Lunar calendar

    Mon Tue Wed Thu Fri Sat Sun
    25 First Quarter
    26 First Quarter
    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

    Air quality in St. Louis Regional Airport Alton today

    Detail
    32
    Fair PM₂₅ (18 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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