St. Louis Regional Airport Alton, IL Weather

    02:00 Tuesday
    Scattered clouds
    Scattered clouds
    1° Feels like -2°
    Last Quarter Last Quarter Illuminated: 22%
    • Today 13 Jan. Partly cloudy 12° / 1° Moderate west wind 20 - 39 km/h
    • Tomorrow 14 Jan. Partly cloudy 5° / -6° Strong northwest wind 29 - 56 km/h
    • Thursday 15 Jan. Snow with partly cloudy skies 50% 1 mm -1° / -8° Moderate south wind 18 - 34 km/h
    • Friday 16 Jan. Partly cloudy 5° / -3° Strong west wind 30 - 61 km/h
    • Saturday 17 Jan. Snow with partly cloudy skies 40% 0.3 mm -2° / -8° Strong northwest wind 23 - 50 km/h
    • Sunday 18 Jan. Scattered clouds 7° / -8° Very strong northwest wind 33 - 81 km/h
    • Monday 19 Jan. Scattered clouds -2° / -12° Moderate north wind 16 - 49 km/h

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

    , 13 January

    Tomorrow

    , 14 January
    02:00 Scattered clouds 1° Scattered clouds
    Feels Like -2°
    Moderate southwest wind Southwest 12 - 20 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 75%
    • Dew Point Dew Point -3 °C
    • Clouds Clouds 42%
    • Feels Like Feels Like -2 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 12 km/h
    • Pressure Pressure 1018 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 20 km/h
    • Snowline Snowline 8530 ft
    03:00 Scattered clouds 1° Scattered clouds
    Feels Like -2°
    Moderate southwest wind Southwest 13 - 21 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 75%
    • Dew Point Dew Point -3 °C
    • Clouds Clouds 46%
    • Feels Like Feels Like -2 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 13 km/h
    • Pressure Pressure 1017 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 21 km/h
    • Snowline Snowline 8858 ft
    04:00 Scattered clouds 2° Scattered clouds
    Feels Like -2°
    Moderate southwest wind Southwest 13 - 22 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 75%
    • Dew Point Dew Point -2 °C
    • Clouds Clouds 40%
    • Feels Like Feels Like -2 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 13 km/h
    • Pressure Pressure 1016 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 22 km/h
    • Snowline Snowline 8858 ft
    Scattered clouds 05:00 Scattered clouds 2° Scattered clouds
    Feels Like -1°
    Moderate southwest wind Southwest 12 - 22 km/h
    		UV Index 0 Low SPF: no
    05:00 Scattered clouds 2° Scattered clouds
    Feels Like -1°
    Moderate southwest wind Southwest 12 - 22 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 77%
    • Dew Point Dew Point -2 °C
    • Clouds Clouds 47%
    • Feels Like Feels Like -1 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 12 km/h
    • Pressure Pressure 1015 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 22 km/h
    • Snowline Snowline 8858 ft
    06:00 Scattered clouds 2° Scattered clouds
    Feels Like -1°
    Moderate southwest wind Southwest 12 - 22 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 76%
    • Dew Point Dew Point -2 °C
    • Clouds Clouds 50%
    • Feels Like Feels Like -1 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 12 km/h
    • Pressure Pressure 1014 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 22 km/h
    • Snowline Snowline 9514 ft
    07:00 Scattered clouds 3° Scattered clouds
    Feels Like 0°
    Moderate southwest wind Southwest 14 - 24 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 74%
    • Dew Point Dew Point -1 °C
    • Clouds Clouds 50%
    • Feels Like Feels Like 0 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 14 km/h
    • Pressure Pressure 1014 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 24 km/h
    • Snowline Snowline 8858 ft
    Scattered clouds 08:00 Scattered clouds 4° Scattered clouds
    Feels Like 1°
    Moderate southwest wind Southwest 16 - 27 km/h
    		UV Index 0 Low SPF: no
    08:00 Scattered clouds 4° Scattered clouds
    Feels Like 1°
    Moderate southwest wind Southwest 16 - 27 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 70%
    • Dew Point Dew Point -1 °C
    • Clouds Clouds 47%
    • Feels Like Feels Like 1 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 16 km/h
    • Pressure Pressure 1013 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 27 km/h
    • Snowline Snowline 8858 ft
    09:00 Scattered clouds 6° Scattered clouds
    Feels Like 3°
    Moderate southwest wind Southwest 19 - 34 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 61%
    • Dew Point Dew Point -1 °C
    • Clouds Clouds 54%
    • Feels Like Feels Like 3 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 19 km/h
    • Pressure Pressure 1013 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 34 km/h
    • Snowline Snowline 8530 ft
    10:00 Scattered clouds 8° Scattered clouds
    Feels Like 6°
    Moderate west wind West 17 - 35 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 57%
    • Dew Point Dew Point 0 °C
    • Clouds Clouds 46%
    • Feels Like Feels Like 6 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 17 km/h
    • Pressure Pressure 1013 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 35 km/h
    • Snowline Snowline 8530 ft
    Scattered clouds 11:00 Scattered clouds 10° Scattered clouds
    Feels Like 7°
    Moderate west wind West 20 - 38 km/h
    		UV Index 1 Low SPF: no
    11:00 Scattered clouds 10° Scattered clouds
    Feels Like 7°
    Moderate west wind West 20 - 38 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 52%
    • Dew Point Dew Point 0 °C
    • Clouds Clouds 35%
    • Feels Like Feels Like 7 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 20 km/h
    • Pressure Pressure 1012 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 38 km/h
    • Snowline Snowline 8530 ft
    12:00 Scattered clouds 11° Scattered clouds
    Feels Like 11°
    Moderate west wind West 19 - 38 km/h
    		UV Index 2 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 50%
    • Dew Point Dew Point 1 °C
    • Clouds Clouds 50%
    • Feels Like Feels Like 11 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 19 km/h
    • Pressure Pressure 1011 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 38 km/h
    • Snowline Snowline 8858 ft
    13:00 Scattered clouds 12° Scattered clouds
    Feels Like 12°
    Moderate west wind West 17 - 37 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 48%
    • Dew Point Dew Point 1 °C
    • Clouds Clouds 51%
    • Feels Like Feels Like 12 °C
    • Visibility Visibility 45 km
    • Wind Wind - Average 17 km/h
    • Pressure Pressure 1009 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 37 km/h
    • Snowline Snowline 8530 ft
    Scattered clouds 14:00 Scattered clouds 12° Scattered clouds
    Feels Like 12°
    Moderate west wind West 16 - 34 km/h
    		UV Index 1 Low SPF: no
    14:00 Partly cloudy 12° Partly cloudy
    Feels Like 12°
    Moderate west wind West 16 - 34 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 49%
    • Dew Point Dew Point 1 °C
    • Clouds Clouds 51%
    • Feels Like Feels Like 12 °C
    • Visibility Visibility 45 km
    • Wind Wind - Average 16 km/h
    • Pressure Pressure 1009 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 34 km/h
    • Snowline Snowline 8530 ft
    15:00 Partly cloudy 11° Partly cloudy
    Feels Like 11°
    Moderate west wind West 15 - 30 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 52%
    • Dew Point Dew Point 2 °C
    • Clouds Clouds 90%
    • Feels Like Feels Like 11 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 15 km/h
    • Pressure Pressure 1009 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 30 km/h
    • Snowline Snowline 8530 ft
    16:00 Partly cloudy 10° Partly cloudy
    Feels Like 10°
    Moderate west wind West 14 - 27 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 55%
    • Dew Point Dew Point 2 °C
    • Clouds Clouds 95%
    • Feels Like Feels Like 10 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 14 km/h
    • Pressure Pressure 1009 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 27 km/h
    • Snowline Snowline 7874 ft
    Overcast 17:00 Overcast 9° Overcast
    Feels Like 7°
    Moderate west wind West 14 - 24 km/h
    		UV Index 0 Low SPF: no
    17:00 Overcast 9° Overcast
    Feels Like 7°
    Moderate west wind West 14 - 24 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 58%
    • Dew Point Dew Point 1 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 7 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 14 km/h
    • Pressure Pressure 1009 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 24 km/h
    • Snowline Snowline 7546 ft
    18:00 Overcast 8° Overcast
    Feels Like 6°
    Moderate west wind West 14 - 24 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 62%
    • Dew Point Dew Point 1 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 6 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 14 km/h
    • Pressure Pressure 1009 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 24 km/h
    • Snowline Snowline 7218 ft
    19:00 Overcast 8° Overcast
    Feels Like 6°
    Moderate west wind West 14 - 25 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 64%
    • Dew Point Dew Point 1 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 6 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 14 km/h
    • Pressure Pressure 1009 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 25 km/h
    • Snowline Snowline 7218 ft
    Overcast 20:00 Overcast 7° Overcast
    Feels Like 5°
    Moderate west wind West 15 - 25 km/h
    		UV Index 0 Low SPF: no
    20:00 Overcast 7° Overcast
    Feels Like 5°
    Moderate west wind West 15 - 25 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 65%
    • Dew Point Dew Point 1 °C
    • Clouds Clouds 96%
    • Feels Like Feels Like 5 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 15 km/h
    • Pressure Pressure 1009 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 25 km/h
    • Snowline Snowline 6890 ft
    21:00 Partly cloudy 7° Partly cloudy
    Feels Like 5°
    Moderate west wind West 14 - 25 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 67%
    • Dew Point Dew Point 1 °C
    • Clouds Clouds 93%
    • Feels Like Feels Like 5 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 14 km/h
    • Pressure Pressure 1009 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 25 km/h
    • Snowline Snowline 6562 ft
    22:00 Partly cloudy 7° Partly cloudy
    Feels Like 4°
    Moderate west wind West 13 - 25 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 70%
    • Dew Point Dew Point 2 °C
    • Clouds Clouds 83%
    • Feels Like Feels Like 4 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 13 km/h
    • Pressure Pressure 1009 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 25 km/h
    • Snowline Snowline 6234 ft
    Partly cloudy 23:00 Partly cloudy 6° Partly cloudy
    Feels Like 4°
    Moderate west wind West 11 - 22 km/h
    		UV Index 0 Low SPF: no
    23:00 Partly cloudy 6° Partly cloudy
    Feels Like 4°
    Moderate west wind West 11 - 22 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 75%
    • Dew Point Dew Point 2 °C
    • Clouds Clouds 57%
    • Feels Like Feels Like 4 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 11 km/h
    • Pressure Pressure 1009 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 22 km/h
    • Snowline Snowline 5906 ft
    24:00 Scattered clouds 5° Scattered clouds
    Feels Like 3°
    Gentle west wind West 11 - 19 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 10% 0 mm
    • Humidity Humidity 79%
    • Dew Point Dew Point 2 °C
    • Clouds Clouds 50%
    • Feels Like Feels Like 3 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 11 km/h
    • Pressure Pressure 1009 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 19 km/h
    • Snowline Snowline 5249 ft

    Sunrise and Sunset

    Sunrise 07:17 Sunset 17:00
    First light 06:48 Midday 12:08 Last light 17:29
    Day length 9h 43m

    Time remaining until sunrise 5h 17m

    Lunar calendar

    Mon Tue Wed Thu Fri Sat Sun
    13 Last Quarter
    14 Last Quarter
    15 Last Quarter
    16 Last Quarter
    17 New Moon
    18 New Moon
    19 New Moon
    20 First Quarter
    21 First Quarter
    22 First Quarter
    23 First Quarter
    24 First Quarter
    25 First Quarter
    26 First Quarter

    Air quality in St. Louis Regional Airport Alton today

    Detail
    22
    Fair O₃ (54 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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