St. Louis Regional Airport Alton, IL Weather

    09:00 Saturday
    Sunny
    Clear
    9° Feels like 8°
    Moderate east wind East 10 - 25 km/h
    • Today 28 Feb. Scattered clouds 15° / 1° Moderate northeast wind 23 - 42 km/h
    • Tomorrow 1 March Rain and snow with partly cloud skies 80% 1.3 mm 7° / -4° Moderate northeast wind 18 - 36 km/h
    • Monday 2 March Rain and snow with cloudy skies 80% 9.9 mm 7° / 0° Moderate southeast wind 20 - 40 km/h
    • Tuesday 3 March Light rain with cloudy skies 90% 8.5 mm 20° / 5° Moderate north wind 19 - 44 km/h
    • Wednesday 4 March Light rain with partly cloudy skies 80% 4 mm 12° / 7° Moderate northeast wind 17 - 31 km/h
    • Thursday 5 March Light rain with partly cloudy skies 80% 3 mm 18° / 8° Moderate west wind 13 - 33 km/h
    • Friday 6 March Thunderstorm with partly cloudy skies 70% 11 mm 24° / 8° Strong south wind 23 - 50 km/h

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

    , 28 February

    Tomorrow

    , 1 March
    10:00 Clear 9° Sunny
    Feels Like 8°
    Moderate east wind East 10 - 25 km/h
    		UV Index 2 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 52%
    • Dew Point Dew Point 0 °C
    • Clouds Clouds 0%
    • Feels Like Feels Like 8 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 10 km/h
    • Pressure Pressure 1020 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 25 km/h
    • Snowline Snowline 8202 ft
    11:00 Clear 11° Sunny
    Feels Like 11°
    Moderate east wind East 10 - 25 km/h
    		UV Index 3 Moderate SPF: 6-10
    • Rain Rain 0% 0 mm
    • Humidity Humidity 46%
    • Dew Point Dew Point 0 °C
    • Clouds Clouds 0%
    • Feels Like Feels Like 11 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 10 km/h
    • Pressure Pressure 1019 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 25 km/h
    • Snowline Snowline 8530 ft
    12:00 Clear 13° Sunny
    Feels Like 13°
    Moderate southeast wind Southeast 10 - 24 km/h
    		UV Index 4 Moderate SPF: 6-10
    • Rain Rain 0% 0 mm
    • Humidity Humidity 41%
    • Dew Point Dew Point 0 °C
    • Clouds Clouds 2%
    • Feels Like Feels Like 13 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 10 km/h
    • Pressure Pressure 1019 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 24 km/h
    • Snowline Snowline 8530 ft
    13:00 Partly cloudy 14° Partly cloudy
    Feels Like 14°
    Moderate southeast wind Southeast 10 - 25 km/h
    		UV Index 3 Moderate SPF: 6-10
    • Rain Rain 0% 0 mm
    • Humidity Humidity 38%
    • Dew Point Dew Point 0 °C
    • Clouds Clouds 79%
    • Feels Like Feels Like 14 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 10 km/h
    • Pressure Pressure 1017 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 25 km/h
    • Snowline Snowline 8858 ft
    14:00 Overcast 15° Overcast
    Feels Like 15°
    Moderate southeast wind Southeast 10 - 25 km/h
    		UV Index 2 Low SPF: no
    • Rain Rain 10% 0 mm
    • Humidity Humidity 38%
    • Dew Point Dew Point 1 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 15 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 10 km/h
    • Pressure Pressure 1016 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 25 km/h
    • Snowline Snowline 8858 ft
    15:00 Overcast 15° Overcast
    Feels Like 15°
    Moderate southeast wind Southeast 8 - 24 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 20% 0 mm
    • Humidity Humidity 44%
    • Dew Point Dew Point 3 °C
    • Clouds Clouds 96%
    • Feels Like Feels Like 15 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1016 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 24 km/h
    • Snowline Snowline 8530 ft
    16:00 Scattered clouds 14° Scattered clouds
    Feels Like 14°
    Gentle southeast wind Southeast 6 - 18 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 20% 0 mm
    • Humidity Humidity 49%
    • Dew Point Dew Point 4 °C
    • Clouds Clouds 45%
    • Feels Like Feels Like 14 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 6 km/h
    • Pressure Pressure 1016 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 18 km/h
    • Snowline Snowline 8530 ft
    Sunny 17:00 Clear 13° Sunny
    Feels Like 13°
    Gentle east wind East 4 - 14 km/h
    		UV Index 0 Low SPF: no
    17:00 Scattered clouds 13° Scattered clouds
    Feels Like 13°
    Gentle east wind East 4 - 14 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 10% 0 mm
    • Humidity Humidity 60%
    • Dew Point Dew Point 6 °C
    • Clouds Clouds 1%
    • Feels Like Feels Like 13 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 4 km/h
    • Pressure Pressure 1016 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 14 km/h
    • Snowline Snowline 8858 ft
    18:00 Clear 10° Sunny
    Feels Like 9°
    Gentle northeast wind Northeast 7 - 10 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 71%
    • Dew Point Dew Point 5 °C
    • Clouds Clouds 0%
    • Feels Like Feels Like 9 °C
    • Visibility Visibility 30 km
    • Wind Wind - Average 7 km/h
    • Pressure Pressure 1016 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 10 km/h
    • Snowline Snowline 8530 ft
    19:00 Scattered clouds 9° Scattered clouds
    Feels Like 8°
    Gentle northeast wind Northeast 8 - 13 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 73%
    • Dew Point Dew Point 4 °C
    • Clouds Clouds 12%
    • Feels Like Feels Like 8 °C
    • Visibility Visibility 30 km
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1017 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 13 km/h
    • Snowline Snowline 7546 ft
    Scattered clouds 20:00 Scattered clouds 8° Scattered clouds
    Feels Like 7°
    Gentle north wind North 9 - 13 km/h
    		UV Index 0 Low SPF: no
    20:00 Scattered clouds 8° Scattered clouds
    Feels Like 7°
    Gentle north wind North 9 - 13 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 76%
    • Dew Point Dew Point 4 °C
    • Clouds Clouds 36%
    • Feels Like Feels Like 7 °C
    • Visibility Visibility 30 km
    • Wind Wind - Average 9 km/h
    • Pressure Pressure 1018 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 13 km/h
    • Snowline Snowline 7874 ft
    21:00 Clear skies 8° Clear
    Feels Like 5°
    Moderate northeast wind Northeast 21 - 37 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 58%
    • Dew Point Dew Point 0 °C
    • Clouds Clouds 0%
    • Feels Like Feels Like 5 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 21 km/h
    • Pressure Pressure 1019 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 37 km/h
    • Snowline Snowline 8202 ft
    22:00 Clear skies 5° Clear
    Feels Like 2°
    Moderate northeast wind Northeast 23 - 41 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 55%
    • Dew Point Dew Point -3 °C
    • Clouds Clouds 3%
    • Feels Like Feels Like 2 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 23 km/h
    • Pressure Pressure 1021 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 41 km/h
    • Snowline Snowline 7874 ft
    Clear 23:00 Clear skies 3° Clear
    Feels Like -1°
    Moderate northeast wind Northeast 22 - 42 km/h
    		UV Index 0 Low SPF: no
    23:00 Clear skies 3° Clear
    Feels Like -1°
    Moderate northeast wind Northeast 22 - 42 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 62%
    • Dew Point Dew Point -3 °C
    • Clouds Clouds 0%
    • Feels Like Feels Like -1 °C
    • Visibility Visibility 30 km
    • Wind Wind - Average 22 km/h
    • Pressure Pressure 1022 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 42 km/h
    • Snowline Snowline 8202 ft
    24:00 Clear skies 1° Clear
    Feels Like -4°
    Moderate northeast wind Northeast 20 - 41 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 66%
    • Dew Point Dew Point -5 °C
    • Clouds Clouds 0%
    • Feels Like Feels Like -4 °C
    • Visibility Visibility 30 km
    • Wind Wind - Average 20 km/h
    • Pressure Pressure 1023 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 41 km/h
    • Snowline Snowline 8202 ft

    Sunrise and Sunset

    Sunrise 06:33 Sunset 17:52
    First light 06:07 Midday 12:12 Last light 18:18
    Day length 11h 18m

    Remaining daylight 8h 17m

    Lunar calendar

    Mon Tue Wed Thu Fri Sat Sun
    28 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
    35
    Fair O₃ (86 µg/m³)

    Weather graphs
    Maximum Minimum Rainfall

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