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Forecast

South Johnstone (17.5987°S, 145.9947°E, 13m AMSL) set as my default location ›

  1. My MLA

  2. Current condition

    TODAY
    Heavy showers 24° 29°
    heavy showers
    Chance of rain: 90%
    Likely amount: 1-5mm
    First
    light
    Sunrise Sunset Last light
    Sunrise Sunset
    5:51am EST 6:13am EST 6:46pm EST 7:08pm EST
    NOW
    24.3° Feels Like: 28.7°
    Relative Humidity: 95%
    Dew: 23.4°
    Wind: E 6km/h
    Gust: 7km/h
    Rainfall since 9am: 132.6mm
    Pressure: 1013.6hPa
  3. Today Weather

    South Johnstone
    Now
    24.4°c
    Feels Like:
    27.6°
    Wind:
    S 15km/h
    Gusts:
    15km/h
    Humidity:
    100%
    Heavy showers
     
    24°
    Min
    29°
    Max
    Today in South Johnstone
    Partly cloudy. Medium chance of showers, becoming less likely this evening. The chance of a thunderstorm in the N. Winds SE 20 to 30 km/h. Daytime maximum temperatures 27 to 33.
    Tomorrow
    Late shower
    23°
    Min
    32°
    Max
    Partly cloudy. Slight chance of a shower in the afternoon and evening. The chance of a thunderstorm in the S. Winds SE 15 to 25 km/h becoming light in the late evening. Overnight temperatures falling to between 18 and 23 with daytime temperatures reaching 29 to 34.
  4. Radar

  5. Popup Radar

  6. Warnings

  7. Next 48 Hours


    Next 48 Hours


  8. 7 day forecast

    Today: Partly cloudy. Medium chance of showers, becoming less likely this evening. The chance of a thunderstorm in the N. Winds SE 20 to 30 km/h. Daytime maximum temperatures 27 to 33.

    Forecast for South Johnstone (17.5987°S, 145.9947°E, 13m AMSL)
      Sun Mon Tue Wed Thu Fri Sat
    Summary Heavy showers Late shower Showers Showers Clearing shower Clearing shower Mostly cloudy
    Minimum 24° 23° 24° 24° 23° 23° 23°
    Maximum 29° 32° 30° 30° 32° 32° 32°
    Chance of rain 90% 90% 90% 90% 30% 40% 30%
    Likely amount 1-5mm 5-10mm 5-10mm 1-5mm < 1mm < 1mm < 1mm
    UV index Extreme Extreme Extreme Extreme Extreme Extreme Extreme
    Fire Danger Rating No Rating No Rating No Rating No Rating - - -
    Frost risk Nil Nil Nil Nil Nil Nil Nil
      9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm
    Wind speed 16
    (km/h)
    17
    (km/h)
    10
    (km/h)
    17
    (km/h)
    10
    (km/h)
    18
    (km/h)
    11
    (km/h)
    18
    (km/h)
    9
    (km/h)
    15
    (km/h)
    6
    (km/h)
    13
    (km/h)
    4
    (km/h)
    12
    (km/h)
    Wind direction S SSE SSW SSE S SSE S SSE S SSE S SE SSW SE
    Relative humidity 87% 80% 74% 64% 89% 78% 85% 73% 82% 65% 80% 64% 77% 63%
    Dew point 24°C 24°C 22°C 22°C 24°C 24°C 24°C 23°C 24°C 22°C 23°C 23°C 24°C 23°C
  9. 28 Day Rainfall forecast

  10. 12 Month Rainfall Forecast

    South Johnstone Rain Forecast


    South Johnstone 12-month Rainfall Forecast
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec
    Jan
    2025
    2026
    10
    6
    7
    5
    7
    6
    7
    7
    9
    7
    7
    7
    10
    5
    0
    1
    2 - 3
    4 - 7
    8 - 9
    10
    Well below normal
    Below normal
    Near normal
    Above normal
    Well above normal

    Issue Notes - Issued Jan 14

    ENSO status: La Niña-like conditions. IOD status: Neutral. SAM status: Negative. Trending slightly negative. The El Niño Southern Oscillation (ENSO) is in a La Niña-like pattern. Recent conditions show some atmosphere-ocean coupling, resulting in the US declaring a La Niña event has started. A La Niña typically increases rainfall over northern and eastern Australia, while reducing rainfall over southern coastal Australia and western Tas. The Indian Ocean Dipole (IOD) is in a neutral phase and does not play a part in Australia's climate during this time of year. The Southern Annular Mode (SAM) is in a negative phase. Recent forecasts show negative SAM is more likely to dominate for the remainder of summer, due to the polar vortex taking an unusually long time to recover from the stratospheric warming event in winter 2024. During summer, a negative SAM decreases rainfall over most of southeastern Australia, and increases rainfall for far southwest WA and western Tas. Rainfall outlooks are showing above average rainfall over large parts of the country during summer, with closer to average conditions for the southwest corner of WA, southern SA and Vic, and central parts of Tas.

  11. Popup - Daily historical

  12. Long range rainfall forecast

  13. Past 5 Days

    South Johnstone Past 5 Days

    This Month
    Minimum Maximum Rainfall
    Tuesday
    Feb 18
    24.4 °C 31.5 °C
    9.6 mm
    Wednesday
    Feb 19
    23.2 °C 30.4 °C
    107.2 mm
    Thursday
    Feb 20
    23.0 °C 31.3 °C
    15.4 mm
    Friday
    Feb 21
    23.1 °C 30.7 °C
    1.6 mm
    Saturday
    Feb 22
    23.8 °C 26.4 °C
    47.2 mm
    Legend
  14. Almanac

    Almanac


    South Johnstone minimum temp history (17.5987°S, 145.9947°E, 13m AMSL)
    MAXIMUM TEMPERATURE MINIMUM TEMPERATURE
    Hottest this month 37.3° 16/02/2025 Coldest this month 22.6° 17/02/2025
    Hottest on record 39.6 12/02/1992 Coldest on record 16.0 07/02/1990
    Hottest this year 37.3° 16/02/2025 Coldest this year 21.4° 10/01/2025
    Long term average 31.0° Long term average 23.0°
    Average this month 31.1° Average this month 24.1°
    Hottest February On Record Avg. max. temp. 33.4° 2016 Coldest February on record Avg. min. temp. 20.5° 1965
    South Johnstone rainfall history (17.5987°S, 145.9947°E, 13m AMSL)
    RAINFALL
    Wettest This Month 185.2mm 01/02/2025 Total This Month 1051.2mm
    19.0 days
    Long Term Average 565.2mm 19.3 days Wettest February on record 1496.7mm 1977
    Driest on record 24.0mm 1984
  15. Year to Date

    South Johnstone Year To Date

    Average Rainfall To Feb 1077.8mm 38.1 day(s)
    Total For 2025 1767.0mm 35.0 day(s)
    Total To This Day 2024 1005.4mm 41.0 day(s)
    Wettest Day 211.8mm Jan29
    Lowest Temperature 21.4°C Jan10
    Highest Temperature 37.3°C Feb16
  16. Popup - Radar

    Weather Radar for Australia

  17. Popup - Monthly historical

  18. Climatology

    Climate History

    South Johnstone Climatology

    Long-Term Averages
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
    Mean Max (°C) 31.3 31.0 30.0 28.4 26.3 24.6 24.1 25.3 27.3 29.1 30.6 31.3 28.3
    Mean Min (°C) 22.9 23.0 22.3 20.8 18.8 16.4 15.4 15.7 17.1 19.2 20.9 22.2 19.5
    Mean Rain (mm) 512.6 565.2 588.7 396.7 268.3 151.5 114.3 93.3 84.8 90.0 140.6 271.3 3329.4
    Mean Rain Days 18.8 19.3 21.3 20.1 19.3 16.2 16.1 14.6 13.0 11.9 12.3 14.9 196.1