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    • Wind Animation
    ECMWF, GFS, ICON, GEM
    New: Official Warnings from National Meteorological Institutes Warning

    Alton

    World / United States / Illinois

    38°53'N / 90°11'W / Altitude 148 m / 03:13 2026/03/19, America/Chicago (UTC-5)

    clear sky 5 °C
    Wind speed 0 km/h
     
    Humidity 83 %
    Visibility 16 km
    Clouds 0 %

    Calculated from nearby stations (02:35 2026/03/19)

    Open Radar Map

    Weather for the next 24 hours

    04:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:0000:00 tomorrow01:00 tomorrow02:00 tomorrow03:00 tomorrow04:00 tomorrow
    clear sky
    7 °C
    0 mm
    0 %
    N
    3 km/h
    		 clear sky
    6 °C
    0 mm
    0 %
    NE
    8 km/h
    		 clear sky
    5 °C
    0 mm
    0 %
    NE
    6 km/h
    		 overcast
    5 °C
    0 mm
    0 %
    NE
    6 km/h
    		 overcast
    6 °C
    0 mm
    0 %
    E
    5 km/h
    		 overcast
    8 °C
    0 mm
    0 %
    E
    3 km/h
    		 overcast
    12 °C
    0 mm
    0 %
    S
    5 km/h
    		 mostly cloudy
    15 °C
    0 mm
    0 %
    S
    5 km/h
    		 clear sky
    19 °C
    0 mm
    0 %
    S
    9 km/h
    		 partly cloudy
    21 °C
    0 mm
    0 %
    S
    9 km/h
    		 clear sky
    23 °C
    0 mm
    0 %
    S
    11 km/h
    		 clear sky
    24 °C
    0 mm
    0 %
    S
    11 km/h
    		 clear sky
    25 °C
    0 mm
    0 %
    S
    9 km/h
    		 clear sky
    25 °C
    0 mm
    0 %
    SW
    10 km/h
    		 clear sky
    25 °C
    0 mm
    0 %
    SW
    7 km/h
    		 clear sky
    22 °C
    0 mm
    0 %
    S
    7 km/h
    		 clear sky
    19 °C
    0 mm
    0 %
    S
    5 km/h
    		 clear sky with few clouds
    16 °C
    0 mm
    0 %
    SE
    4 km/h
    		 high clouds
    15 °C
    0 mm
    0 %
    SE
    8 km/h
    		 high clouds
    14 °C
    0 mm
    0 %
    SE
    8 km/h
    		 overcast
    13 °C
    0 mm
    0 %
    E
    5 km/h
    		 clear sky
    12 °C
    0 mm
    0 %
    E
    3 km/h
    		 clear sky
    12 °C
    0 mm
    0 %
    E
    3 km/h
    		 high clouds
    10 °C
    0 mm
    0 %
    SE
    7 km/h
    		 high clouds
    10 °C
    0 mm
    0 %
    S
    3 km/h

    Forecast

    01:0004:0007:0010:0013:0016:0019:0022:00
    clear sky
    12 °C
    0 mm
    0 %
    E
    3 km/h
    		 high clouds
    10 °C
    0 mm
    0 %
    S
    3 km/h
    		 clear sky
    9 °C
    0 mm
    0 %
    S
    3 km/h
    		 high clouds
    19 °C
    0 mm
    0 %
    W
    13 km/h
    		 high clouds
    28 °C
    0 mm
    0 %
    W
    23 km/h
    		 high clouds
    30 °C
    0 mm
    0 %
    W
    18 km/h
    		 high clouds
    25 °C
    0 mm
    0 %
    NW
    9 km/h
    		 high clouds
    20 °C
    0 mm
    0 %
    NE
    17 km/h

    Meteogram

    59121474116421241725302734131628211015841827
    40
    35
    30
    25
    20
    15
    10
    5
    0
    -5
    Thu
    19
    partly cloudy    		Fri
    20
    high clouds    		Sat
    21
    clear sky    		Sun
    22
    clear sky with few clouds    		Mon
    23
    clear sky with few clouds    		Tue
    24
    clear sky with few clouds    		Wed
    25
    partly cloudy    		Thu
    26
    partly cloudy    		Fri
    27
    high clouds    		Sat
    28
    mostly cloudy    		Sun
    29
    clear sky with few clouds    		Mon
    30
    overcast with mixture of snow and rain    		Tue
    31
    mixed with rain showers    		Wed
    01
    clear sky with few clouds

    Air quality (AQI)


    Air quality index (marked as AQI) is developed by Environmental Protection Agency. Values over 300 represents hazardous air quality, between 200-300 very unhealthy, 150-200 unhealthy, 100-150 unhealthy for sensitive groups and below 100 or rather below 50 the air quality is good.

    Sun and Moon

    Heading: Time:
    Phase: Altitude:


    Heading: Time:
    Illumination: Altitude:


    Date rise set rise Illumination


    Phase Time Length