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    • Boston

    United States / Lat.: 42°21'N / Lon.: 71°3'W / Altitude: 21 m
    Timezone: America/New_York (UTC-4) / Current time: 21:38 2025/04/21
    overcast 9.4 °C
    Wind 26 km/h
     
    Humidity 46 %
    Air pressure 1020 hPa
    Visibility 16 km
    Clouds 100 %
    Cloud base 1402 m

    Weather report from station Boston, Distance: 4 km (20:54 2025/04/21)

    Weather for the next 24 hours

    22:0023:0000:00 tomorrow01:00 tomorrow02:00 tomorrow03:00 tomorrow04:00 tomorrow05:00 tomorrow06:00 tomorrow07:00 tomorrow08:00 tomorrow09:00 tomorrow10:00 tomorrow11:00 tomorrow12:00 tomorrow13:00 tomorrow14:00 tomorrow15:00 tomorrow16:00 tomorrow17:00 tomorrow18:00 tomorrow19:00 tomorrow20:00 tomorrow21:00 tomorrow22:00 tomorrow
    overcast
    9 °C
    0 mm
    0 %
    S
    15 km/h
    Gust:
    43 km/h
    		 overcast
    9 °C
    0 mm
    10 %
    S
    15 km/h
    		 overcast
    9 °C
    0 mm
    10 %
    S
    13 km/h
    		 overcast
    9 °C
    0 mm
    20 %
    S
    15 km/h
    		 overcast
    10 °C
    0 mm
    30 %
    S
    16 km/h
    Gust:
    43 km/h
    		 overcast with light rain
    10 °C
    0.1 mm
    70 %
    S
    18 km/h
    		 overcast with rain
    10 °C
    3 mm
    80 %
    SW
    10 km/h
    		 overcast with light rain
    10 °C
    0.3 mm
    90 %
    SW
    4 km/h
    		 overcast with light rain
    10 °C
    0.1 mm
    90 %
    S
    3 km/h
    		 overcast
    11 °C
    0 mm
    40 %
    S
    3 km/h
    		 overcast
    12 °C
    0 mm
    20 %
    S
    9 km/h
    		 overcast
    15 °C
    0 mm
    10 %
    SW
    11 km/h
    		 overcast
    16 °C
    0 mm
    0 %
    SW
    13 km/h
    		 overcast
    18 °C
    0 mm
    0 %
    SW
    13 km/h
    		 partly cloudy
    20 °C
    0 mm
    0 %
    W
    13 km/h
    		 partly cloudy
    22 °C
    0 mm
    0 %
    W
    18 km/h
    		 partly cloudy
    21 °C
    0 mm
    0 %
    SW
    17 km/h
    		 clear sky with few clouds
    22 °C
    0 mm
    0 %
    W
    20 km/h
    		 clear sky
    23 °C
    0 mm
    0 %
    W
    19 km/h
    		 clear sky
    22 °C
    0 mm
    0 %
    W
    19 km/h
    		 clear sky
    21 °C
    0 mm
    0 %
    W
    19 km/h
    		 high clouds
    19 °C
    0 mm
    0 %
    W
    18 km/h
    		 high clouds
    16 °C
    0 mm
    0 %
    W
    14 km/h
    		 clear sky
    14 °C
    0 mm
    0 %
    W
    16 km/h
    		 clear sky with few clouds
    12 °C
    0 mm
    0 %
    W
    17 km/h

    Forecast

    02:0005:0008:0011:0014:0017:0020:0023:00
    overcast
    10 °C
    0 mm
    30 %
    S
    16 km/h
    Gust:
    43 km/h
    		 overcast with rain
    10 °C
    3.4 mm
    90 %
    SW
    4 km/h
    		 overcast with light rain
    12 °C
    0.1 mm
    90 %
    S
    9 km/h
    		 overcast
    18 °C
    0 mm
    10 %
    SW
    13 km/h
    		 partly cloudy
    21 °C
    0 mm
    0 %
    SW
    17 km/h
    		 clear sky
    22 °C
    0 mm
    0 %
    W
    19 km/h
    		 high clouds
    16 °C
    0 mm
    0 %
    W
    14 km/h
    		 clear sky with few clouds
    11 °C
    0 mm
    0 %
    W
    15 km/h

    Meteogram

    4106911129109887981422211922171919211216161618
    25
    20
    15
    10
    5
    0
    Mo
    21
    partly cloudy    		Tu
    22
    overcast with light rain    		We
    23
    clear sky    		Th
    24
    clear sky with few clouds    		Fr
    25
    clear sky with few clouds    		Sa
    26
    overcast with rain    		Su
    27
    partly cloudy    		Mo
    28
    partly cloudy    		Tu
    29
    mostly cloudy    		We
    30
    overcast    		Th
    01
    mixed with rain showers    		Fr
    02
    partly cloudy    		Sa
    03
    mostly cloudy    		Su
    04
    overcast with rain

    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

    rise05:54set19:33
    Heading: ↓northwest Time: 2025/04/21 21:00
    Phase: astronomical twilight Altitude: −15 °


    rise02:48set12:09
    Heading: ↓northeast Time: 2025/04/21 21:00
    Illumination: 38 % Altitude: −63 °


    Date rise set rise Illumination
    2025/04/2102:4812:09—47 % to 37 %
    2025/04/2203:1813:23—36 % to 26 %
    2025/04/2303:4314:38—26 % to 17 %
    2025/04/2404:0715:55—17 % to 9 %
    2025/04/2504:2917:13—9 % to 4 %


    Phase 2025/04/21 Time Length
    night00:00 to 04:104 hr. 11 min.
    astronomical twilight04:10 to 04:4939 min.
    nautic twilight04:49 to 05:2536 min.
    civil twilight05:25 to 05:5430 min.
    day05:54 to 19:3313 hr. 39 min.
    civil twilight19:33 to 20:0230 min.
    nautic twilight20:02 to 20:3836 min.
    astronomical twilight20:38 to 21:1739 min.
    night21:17 to 00:002 hr. 43 min.
    Temperature
    Feels like temperature
    Precipitation
    Radar
    Satellite
    Clouds
    Wind speed
    Wind gusts
    Air pressure
    Thunderstorms
    Humidity
    Sea
    Snow cover
    Air quality
    PlayPreviousNextChange dateToday, 2025/04/2200:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
    MoTuWeThFrSaSu
    21222324252627
    28April293001020304
    05060708091011

    Data: HRRR, NOAA (resolution 3 km)
    Updated: 23:00 UTC (next update: 00:00 UTC - prepare)
    Current time: 02:00, 2025/04/22 (UTC)

    For this output data, temperature is shown for 2 m above ground. The calculations take into account the terrain (elevation), but with lower resolution than in reality. Therefore the models cannot differentiate, for instance, the temperature on a mountain peak or on a city square scorched by the sun. The general rule is that the centres of large cities are 1 °C to 3 °C warmer than the surrounding area or natural landscapes. Significant temperature differences over a small area are primarily caused in the winter by an inversion. A short yet noticeable cooling can also occur after a local summer storm.

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