Harpenden (Hertfordshire) weather

Forecast days

Overcast.
Sunrise iconSunrise:
Sunset iconSunset:
L UV
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No pollen data.

    7 day forecast for Harpenden

    Today (7 March 2026)
    Time
    07:00
    08:00
    09:00
    10:00
    11:00
    12:00
    13:00
    14:00
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Mist
    Chance of precipitation
    <5%
    10%
    10%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature
    10°
    10°
    10°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed
    NE
    6
    ENE
    6
    ENE
    6
    E
    6
    E
    6
    E
    5
    E
    5
    E
    5
    E
    5
    E
    5
    E
    5
    ESE
    6
    ESE
    6
    ESE
    6
    ESE
    6
    ESE
    6
    ESE
    5
    Wind gust (mph)
    12
    12
    13
    13
    12
    11
    12
    12
    11
    11
    10
    11
    12
    12
    12
    11
    10
    Visibility
    M
    M
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    M
    M
    M
    M
    Humidity
    96%
    95%
    94%
    92%
    91%
    87%
    86%
    84%
    83%
    83%
    85%
    87%
    89%
    90%
    92%
    93%
    95%
    UV 1 1 1 1 1 1 1 1 1 1 1 - - - - - -
    Sunday (8 March 2026)
    Time
    00:00
    01:00
    02:00
    03:00
    04:00
    05:00
    06:00
    07:00
    08:00
    09:00
    10:00
    11:00
    12:00
    13:00
    14:00
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Mist Mist Mist Mist Mist Mist Mist Mist Mist Overcast Overcast Overcast Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Mist Mist Mist Mist Mist Mist Fog
    Chance of precipitation
    <5%
    10%
    20%
    20%
    30%
    30%
    20%
    30%
    10%
    <5%
    <5%
    <5%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    10°
    11°
    12°
    13°
    13°
    13°
    12°
    11°
    Feels like temperature (°C)
    10°
    11°
    12°
    12°
    12°
    11°
    Wind direction and speed (mph)
    ESE
    5
    ESE
    5
    ESE
    5
    ESE
    5
    ESE
    5
    ESE
    5
    ESE
    5
    ESE
    6
    ESE
    6
    ESE
    6
    SE
    6
    SE
    6
    SE
    6
    SE
    6
    SE
    6
    SE
    6
    SE
    6
    ESE
    6
    ESE
    6
    ESE
    6
    ESE
    7
    ESE
    7
    ESE
    6
    SE
    6
    Wind gust (mph)
    10
    10
    10
    10
    10
    11
    11
    12
    12
    13
    13
    13
    13
    13
    13
    13
    12
    11
    12
    13
    13
    13
    12
    12
    Visibility (description)
    M
    P
    P
    P
    P
    P
    P
    P
    P
    M
    M
    G
    G
    G
    G
    G
    G
    M
    M
    M
    M
    M
    M
    P
    Humidity
    96%
    96%
    97%
    97%
    97%
    97%
    98%
    98%
    98%
    96%
    92%
    87%
    84%
    82%
    77%
    76%
    76%
    83%
    86%
    92%
    93%
    96%
    97%
    98%
    UV - - - - - - 1 1 1 1 1 2 2 1 1 1 1 1 - - - - - -
    Monday (9 March 2026)
    Time
    00:00
    01:00
    02:00
    03:00
    04:00
    05:00
    06:00
    07:00
    08:00
    09:00
    10:00
    11:00
    12:00
    13:00
    14:00
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Fog Fog Fog Fog Fog Fog Fog Fog Mist Mist Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Clear night Clear night Clear night Mist Mist
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    <5%
    <5%
    <5%
    10%
    10%
    10%
    10%
    10%
    20%
    20%
    10%
    <5%
    <5%
    <5%
    <5%
    10%
    Temperature (°C)
    10°
    12°
    13°
    14°
    15°
    15°
    15°
    14°
    12°
    11°
    11°
    10°
    Feels like temperature (°C)
    11°
    13°
    14°
    14°
    14°
    14°
    14°
    12°
    11°
    10°
    Wind direction and speed (mph)
    SE
    6
    SE
    6
    SE
    5
    SE
    5
    SE
    4
    SE
    4
    SE
    4
    SE
    4
    SE
    4
    SSE
    4
    SSE
    4
    S
    5
    S
    5
    S
    5
    S
    6
    SSW
    6
    SSW
    5
    SSW
    5
    S
    5
    S
    5
    S
    5
    S
    5
    SSW
    5
    SSW
    5
    Wind gust (mph)
    11
    10
    10
    9
    8
    8
    8
    8
    9
    8
    9
    10
    11
    11
    11
    12
    11
    8
    8
    9
    10
    10
    10
    10
    Visibility (description)
    P
    P
    P
    VP
    VP
    VP
    VP
    VP
    P
    M
    M
    M
    G
    G
    VG
    VG
    VG
    VG
    G
    G
    G
    G
    M
    M
    Humidity
    98%
    99%
    99%
    99%
    99%
    100%
    100%
    100%
    99%
    97%
    92%
    86%
    83%
    76%
    75%
    74%
    74%
    78%
    85%
    87%
    91%
    92%
    94%
    95%
    UV - - - - - - 1 1 1 1 1 2 2 2 1 1 1 1 - - - - - -
    Tuesday (10 March 2026)
    Time
    00:00
    01:00
    02:00
    03:00
    04:00
    05:00
    06:00
    07:00
    08:00
    09:00
    10:00
    11:00
    12:00
    13:00
    14:00
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Mist Mist Mist Mist Mist Mist Mist Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Clear night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Cloudy
    Chance of precipitation
    10%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    10%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    Temperature (°C)
    10°
    12°
    13°
    14°
    14°
    14°
    14°
    13°
    12°
    10°
    10°
    Feels like temperature (°C)
    10°
    11°
    12°
    12°
    12°
    11°
    11°
    Wind direction and speed (mph)
    SSW
    5
    SSW
    5
    SSW
    6
    SSW
    5
    SW
    5
    SW
    5
    SW
    5
    SSW
    5
    SW
    6
    SW
    6
    SW
    7
    SSW
    9
    SSW
    10
    SSW
    10
    SSW
    11
    SSW
    12
    SSW
    12
    SSW
    12
    SSW
    11
    SSW
    11
    SSW
    12
    SSW
    12
    SSW
    13
    SSW
    14
    Wind gust (mph)
    10
    10
    10
    10
    10
    10
    10
    11
    12
    13
    16
    18
    20
    21
    22
    22
    21
    21
    21
    20
    20
    23
    23
    24
    Visibility (description)
    M
    M
    M
    M
    M
    M
    M
    M
    M
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    96%
    97%
    97%
    97%
    98%
    98%
    98%
    98%
    96%
    92%
    85%
    79%
    72%
    68%
    66%
    65%
    68%
    69%
    76%
    81%
    85%
    87%
    88%
    89%
    UV - - - - - - 1 1 1 1 2 2 2 2 1 1 1 1 - - - - - -
    Wednesday (11 March 2026)
    Time
    00:00
    01:00
    02:00
    03:00
    04:00
    05:00
    06:00
    07:00
    08:00
    09:00
    10:00
    11:00
    12:00
    13:00
    14:00
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Cloudy Cloudy Cloudy Overcast Light rain Light rain Light rain Light rain Light rain Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny day Clear night Clear night Clear night Clear night Clear night Clear night
    Chance of precipitation
    30%
    40%
    40%
    50%
    60%
    70%
    80%
    70%
    60%
    50%
    40%
    40%
    40%
    40%
    30%
    20%
    20%
    20%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    10°
    10°
    11°
    11°
    12°
    12°
    12°
    12°
    11°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SSW
    14
    S
    14
    S
    15
    S
    16
    SSW
    16
    SSW
    16
    SSW
    16
    SSW
    16
    SSW
    16
    SW
    15
    SW
    14
    WSW
    14
    WSW
    14
    WSW
    14
    W
    14
    W
    13
    W
    12
    W
    11
    WSW
    10
    WSW
    9
    WSW
    9
    WSW
    9
    WSW
    9
    WSW
    8
    Wind gust (mph)
    26
    27
    28
    30
    30
    29
    30
    30
    30
    28
    28
    28
    26
    27
    26
    26
    24
    20
    16
    17
    16
    16
    16
    16
    Visibility (description)
    G
    VG
    G
    G
    G
    G
    VG
    G
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    88%
    89%
    90%
    90%
    90%
    90%
    90%
    90%
    90%
    88%
    81%
    75%
    68%
    64%
    60%
    59%
    59%
    63%
    68%
    72%
    75%
    76%
    78%
    81%
    UV - - - - - - 1 1 1 1 1 1 2 2 1 1 1 1 - - - - - -
    Thursday (12 March 2026)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Clear night Partly cloudy night Cloudy Overcast Overcast Overcast Overcast Overcast
    Chance of precipitation
    <5%
    <5%
    10%
    10%
    20%
    30%
    40%
    40%
    Temperature (°C)
    11°
    11°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SW
    8
    SW
    9
    SSW
    10
    SSW
    13
    SSW
    18
    SSW
    19
    SSW
    17
    SSW
    17
    Wind gust (mph)
    17
    19
    25
    34
    37
    37
    35
    34
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    Humidity
    82%
    86%
    86%
    81%
    71%
    68%
    77%
    78%
    UV - - 1 1 2 1 - -
    Friday (13 March 2026)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Light rain Light rain Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
    Chance of precipitation
    60%
    60%
    50%
    40%
    40%
    40%
    30%
    20%
    Temperature (°C)
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SSW
    15
    SSW
    13
    SW
    11
    SW
    10
    SW
    11
    SW
    11
    SSW
    9
    SSW
    9
    Wind gust (mph)
    30
    26
    24
    24
    24
    23
    18
    17
    Visibility (description)
    G
    G
    G
    VG
    VG
    VG
    VG
    G
    Humidity
    81%
    85%
    86%
    84%
    68%
    57%
    67%
    78%
    UV - - 1 1 2 1 1 -

    UK video forecast

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    WARNING
    Flood warnings icon
    Flood warnings in force for England
    Flood warnings in force for England

    East of England weather forecast

    Headline:

    Generally overcast and dry.

    Today:

    Early low cloud will gradually lift a little, and limited bright or sunny intervals may develop, these most likely across eastern areas. Generally dry, although there is a chance of patchy light rain, mainly at first. Slightly milder than Friday. Maximum temperature 11 °C.

    Tonight:

    Remaining predominantly dry but also cloudy, although some limited clear intervals may occur across eastern areas. These would then lead to patchy mist or fog forming. Minimum temperature 3 °C.

    Sunday:

    Generally overcast and dry, with any early patchy mist or fog clearing. Some bright or sunny spells may develop through the afternoon, leading to above average temperatures occurring. Maximum temperature 13 °C.

    Outlook for Monday to Wednesday:

    Monday overcast with patchy drizzle and early hill fog. Tuesday becoming brighter with perhaps showers arriving. Wednesday breezy with sunshine and scattered showers. Temperatures close to or slightly above average.

    Updated:

    UK long range weather forecast

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