Slieve Gallion (County Londonderry) weather

Forecast days

Partly cloudy.
Sunrise iconSunrise:
Sunset iconSunset:
M UV
L Pollution

    7 day forecast for Slieve Gallion

    Today (30 August 2025)
    Time
    23:00
    Weather symbols Partly cloudy night
    Chance of precipitation
    10%
    Temperature
    Feels like temperature (°C)
    Wind direction and speed
    SSW
    22
    Wind gust (mph)
    30
    Visibility
    E
    Humidity
    90%
    UV -
    Sunday (31 August 2025)
    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 Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Overcast Cloudy Overcast Overcast Overcast Light rain Light rain Light rain Heavy rain Heavy rain Heavy rain Heavy shower day Light shower night Heavy shower night Light shower night Light shower night
    Chance of precipitation
    20%
    20%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    10%
    40%
    60%
    80%
    80%
    90%
    ≥95%
    90%
    90%
    80%
    80%
    70%
    50%
    Temperature (°C)
    10°
    11°
    11°
    12°
    12°
    12°
    11°
    11°
    11°
    11°
    11°
    10°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SSW
    23
    S
    23
    S
    24
    S
    25
    S
    26
    S
    28
    S
    29
    S
    29
    S
    29
    S
    29
    S
    29
    S
    30
    S
    31
    S
    30
    S
    30
    S
    29
    S
    30
    S
    28
    S
    27
    S
    27
    S
    26
    S
    24
    S
    22
    SSW
    21
    Wind gust (mph)
    30
    30
    32
    34
    36
    38
    39
    40
    42
    44
    46
    47
    48
    47
    47
    45
    43
    41
    38
    36
    33
    31
    30
    28
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    VG
    M
    G
    VP
    VP
    VP
    VP
    VP
    Humidity
    90%
    91%
    90%
    90%
    89%
    88%
    86%
    86%
    85%
    83%
    76%
    75%
    73%
    74%
    76%
    79%
    86%
    90%
    94%
    94%
    95%
    96%
    97%
    97%
    UV - - - - - - 1 1 1 1 2 4 3 3 3 3 1 1 1 1 1 - - -
    Monday (1 September 2025)
    Time
    00:00
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Light shower night Light shower night Light shower night Light shower day Heavy shower day Heavy shower day Light shower day Light shower night Partly cloudy night
    Chance of precipitation
    50%
    80%
    80%
    90%
    90%
    ≥95%
    90%
    70%
    30%
    Temperature (°C)
    10°
    10°
    10°
    11°
    11°
    12°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SSW
    20
    SSW
    20
    SSW
    20
    SW
    19
    SW
    21
    WSW
    21
    WSW
    22
    WSW
    19
    SW
    15
    Wind gust (mph)
    28
    30
    29
    30
    32
    35
    34
    25
    22
    Visibility (description)
    VP
    VP
    VP
    VP
    P
    VG
    VG
    VG
    VG
    Humidity
    97%
    98%
    96%
    96%
    94%
    91%
    90%
    91%
    93%
    UV - - - 1 3 4 2 1 -
    Tuesday (2 September 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Fog Fog Fog Cloudy Light shower day Light shower day Partly cloudy night Partly cloudy night
    Chance of precipitation
    20%
    30%
    40%
    50%
    80%
    70%
    40%
    20%
    Temperature (°C)
    10°
    12°
    12°
    11°
    10°
    Feels like temperature (°C)
    10°
    Wind direction and speed (mph)
    SW
    15
    SSW
    13
    S
    12
    S
    12
    S
    12
    S
    12
    WSW
    11
    W
    10
    Wind gust (mph)
    21
    18
    17
    18
    18
    15
    12
    12
    Visibility (description)
    VG
    VP
    VP
    VP
    VG
    VG
    VG
    VG
    Humidity
    94%
    97%
    99%
    95%
    84%
    81%
    87%
    91%
    UV - - 1 2 4 2 1 -
    Wednesday (3 September 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Light shower day Light shower day Light shower night Partly cloudy night
    Chance of precipitation
    20%
    10%
    10%
    40%
    70%
    80%
    50%
    40%
    Temperature (°C)
    11°
    12°
    13°
    11°
    10°
    Feels like temperature (°C)
    10°
    10°
    Wind direction and speed (mph)
    W
    11
    WSW
    11
    WSW
    10
    SW
    12
    SW
    12
    SW
    12
    SSW
    10
    S
    10
    Wind gust (mph)
    13
    12
    14
    18
    19
    19
    14
    14
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    94%
    95%
    94%
    88%
    74%
    75%
    86%
    92%
    UV - - 1 2 3 2 1 -
    Thursday (4 September 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Cloudy Cloudy Cloudy Light shower day Light shower day Light shower day Partly cloudy night Partly cloudy night
    Chance of precipitation
    40%
    40%
    40%
    70%
    80%
    60%
    20%
    10%
    Temperature (°C)
    10°
    12°
    12°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    S
    10
    WSW
    11
    WSW
    13
    WSW
    15
    WSW
    18
    WSW
    20
    WSW
    17
    WSW
    13
    Wind gust (mph)
    14
    17
    20
    26
    28
    27
    23
    22
    Visibility (description)
    VG
    G
    G
    G
    VG
    VG
    VG
    G
    Humidity
    95%
    96%
    97%
    92%
    79%
    76%
    83%
    89%
    UV - - 1 2 4 2 1 -
    Friday (5 September 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Partly cloudy night Partly cloudy night Sunny intervals Cloudy Cloudy Cloudy Cloudy Cloudy
    Chance of precipitation
    20%
    20%
    30%
    40%
    40%
    30%
    30%
    30%
    Temperature (°C)
    10°
    12°
    12°
    11°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SW
    14
    SW
    14
    SW
    14
    SW
    19
    SW
    22
    SW
    21
    SSW
    16
    SSW
    14
    Wind gust (mph)
    22
    21
    28
    30
    30
    28
    22
    20
    Visibility (description)
    G
    G
    G
    G
    G
    G
    VG
    G
    Humidity
    90%
    91%
    91%
    85%
    75%
    73%
    78%
    88%
    UV - - 1 2 4 2 1 -

    UK video forecast

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    Northern Ireland weather forecast

    Headline:

    Mainly dry bright start Sunday then showery, windy.

    This Evening and Tonight:

    A brighter evening with sunshine and only a few well scattered showers in west. Then clear spells after dark, especially in the east, turning cloudier in west with the odd shower. Southerly winds picking up before morning Minimum temperature 11 °C.

    Sunday:

    Mainly bright and dry start, sunny in east, then showers developing from mid-morning with some turning heavy in the afternoon. Windy with southerly gales possible along east coast. Maximum temperature 18 °C.

    Outlook for Monday to Wednesday:

    Sunny intervals and showers on Monday, some heavy, breezy. Sunshine, scattered showers Tuesday and Wednesday, lighter winds, but perhaps a longer spell of rain for a time on Tuesday.

    Updated:

    UK long range weather forecast

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