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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

    TOMORROW
    Fog then sunny 15° 28°
    fog then sunny
    Chance of rain: 5%
    Likely amount: < 1mm
    First
    light
    Sunrise Sunset Last light
    Sunrise Sunset
    6:13am EST 6:35am EST 6:06pm EST 6:28pm EST
    NOW
    21.3° Feels Like: 23.8°
    Relative Humidity: 83%
    Dew: 18.4°
    Wind: SE 2km/h
    Gust: 4km/h
    Rainfall since 9am: 0.0mm
    Pressure: 1015.8hPa
  3. Today Weather

    South Johnstone
    Now
    20.9°c
    Feels Like:
    22.5°
    Wind:
    E 7km/h
    Gusts:
    9km/h
    Humidity:
    86%
    Fog then sunny
     
    15°
    Min
    28°
    Max
    Today in South Johnstone
    Mostly sunny. Patchy morning fog. Light winds. Overnight temperatures falling to between 11 and 17 with daytime temperatures reaching 26 to 32.
    Tomorrow
    Fog then sunny
    15°
    Min
    28°
    Max
    Sunny. Light winds becoming E/SE 15 to 25 km/h in the morning then becoming light in the evening. Overnight temperatures falling to between 11 and 17 with daytime temperatures reaching 26 to 32.
  4. Radar

  5. Popup Radar

  6. Warnings

    There are no current warnings for South Johnstone

  7. Next 48 Hours


    Next 48 Hours


  8. 7 day forecast

    Today: Mostly sunny. Patchy morning fog. Light winds. Overnight temperatures falling to between 11 and 17 with daytime temperatures reaching 26 to 32.

    Forecast for South Johnstone (17.5987°S, 145.9947°E, 13m AMSL)
      Sat Sun Mon Tue Wed Thu Fri
    Summary Fog then sunny Fog then sunny Sunny Mostly sunny Mostly sunny Mostly sunny Sunny
    Minimum 15° 15° 11° 10° 11° 13° 14°
    Maximum 28° 28° 27° 27° 28° 29° 29°
    Chance of rain 5% 5% 5% 5% 5% 20% 5%
    Likely amount < 1mm < 1mm < 1mm < 1mm < 1mm < 1mm < 1mm
    UV index High Very High Very High Very High - - -
    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 1
    (km/h)
    11
    (km/h)
    5
    (km/h)
    13
    (km/h)
    2
    (km/h)
    12
    (km/h)
    1
    (km/h)
    10
    (km/h)
    0
    (km/h)
    11
    (km/h)
    0
    (km/h)
    10
    (km/h)
    1
    (km/h)
    11
    (km/h)
    Wind direction WSW ENE SSW SE WSW ESE W ENE NW NE W E SSW ESE
    Relative humidity 83% 60% 69% 34% 68% 39% 72% 44% 75% 48% 73% 49% 75% 35%
    Dew point 18°C 18°C 16°C 9°C 13°C 11°C 14°C 13°C 15°C 15°C 16°C 16°C 17°C 10°C
  9. 28 Day Rainfall forecast

    South Johnstone Rain Forecast


    South Johnstone 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    MEDIUM
    25
    LOW
    26
    LOW
    27
    LOW
    28
    29
    30
    31
    Sep 1
    2
    3
    4
    5
    LOW
    6
    7
    8
    9
    10
    11
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Aug14

    Issue Notes

    The hemispheric long wave pattern has remained stable in recent weeks. There are five main troughs. Currently the most significant troughs are near the longitudes of South Africa, the southwest Indian Ocean, eastern Australia, the southeast Pacific, and South America.

    Summary:

    Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 22 August to 26 August, 29 August to 2 September, and 5 September to 9 September. Rain events originating in the tropics and moving south are possible about 26 August to 30 August, and 16 September to 20 September. Over Western Australia the strongest cold fronts should occur about 19 August to 23 August, 29 August to 2 September, and 3 September to 7 September.

    Forecast Explanation

    This forecast is produced by a multi-model ensemble consisting of dynamical atmospheric models, which are forced by the latest observed atmosphere, ocean, land and ice conditions. The models are designed to simulate features of the real atmosphere, including the daily movement of long and short wave patterns in the Southern Hemisphere.

    The future probability of rain in each district is estimated using output from the multi-model ensemble, combined with historical information about the difference between the model forecasts and observed rainfall.

    In this deterministic framework the skill of the forecast tends to decrease with time, however the forecasts are updated daily to provide the latest estimates of rainfall probability out to 28 days.

  10. 12 Month Rainfall Forecast

    South Johnstone Rain Forecast


    South Johnstone 12-month Rainfall Forecast
    Aug
    Sep
    Oct
    Nov
    Dec
    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    2020
    2021
    8
    8
    9
    8
    8
    6
    6
    5
    7
    4
    5
    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 Aug 5

    ENSO status: La Nina Watch IOD status: Neutral SAM status: Positive Sea surface temperatures (SSTs) across the equatorial central Pacific show a slight decrease in the intensity of cooling compared to June, with the Nino3.4 index registering a value of 0.0 in July. The Southern Oscillation Index (SOI) recorded a value of 4.2 in the same month, a swing into positive values compared to June. The current outlook suggests that cooler than average SSTs will continue across the equatorial pacific through the end of winter and potentially reach La Nina thresholds by mid-spring. All eight international models continue to suggest a cooler side of neutral for the region throughout the remainder of the Austral winter and through spring, with four of these indicating La Nina by Spring. The current International Research Institute for Climate and Society (IRI) outlook suggests a 54:41 chance for La Nina:Neutral conditions by the end of the Austral spring. To the west of Australia, the Indian Ocean Dipole (IOD) remains neutral. Two of the six international models indicate a negative IOD becoming established during the Austral spring, with the remaining four indicating a neutral phase. Of the four neutral models, including the BOM, three are trending slightly negative within the neutral zone by early spring, with only the Canadian model trending positive. In terms of precipitation over Australia, the current short-term outlook favours above average rainfall across most of Australia over the next fortnight, with the exception of western TAS, far southern VIC, and northern QLD and the NT. These expected wetter than average conditions will likely be due to the passage of moisture troughs inland and fronts, in part driven by the positive SAM. Models are then indicating a continued trend to above average rainfall for inland SA, all but the far north of the NT, western, central and southern QLD, northern and western NSW and parts of southern WA. Parts of WA’s Pilbara and Kimberley however are showing signs of below average rainfall into early spring.

  11. Long range rainfall forecast

    South Johnstone Rain Forecast


    South Johnstone 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    MEDIUM
    25
    LOW
    26
    LOW
    27
    LOW
    28
    29
    30
    31
    Sep 1
    2
    3
    4
    5
    LOW
    6
    7
    8
    9
    10
    11
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Aug14

    Issue Notes

    The hemispheric long wave pattern has remained stable in recent weeks. There are five main troughs. Currently the most significant troughs are near the longitudes of South Africa, the southwest Indian Ocean, eastern Australia, the southeast Pacific, and South America.

    Summary:

    Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 22 August to 26 August, 29 August to 2 September, and 5 September to 9 September. Rain events originating in the tropics and moving south are possible about 26 August to 30 August, and 16 September to 20 September. Over Western Australia the strongest cold fronts should occur about 19 August to 23 August, 29 August to 2 September, and 3 September to 7 September.

    Forecast Explanation

    This forecast is produced by a multi-model ensemble consisting of dynamical atmospheric models, which are forced by the latest observed atmosphere, ocean, land and ice conditions. The models are designed to simulate features of the real atmosphere, including the daily movement of long and short wave patterns in the Southern Hemisphere.

    The future probability of rain in each district is estimated using output from the multi-model ensemble, combined with historical information about the difference between the model forecasts and observed rainfall.

    In this deterministic framework the skill of the forecast tends to decrease with time, however the forecasts are updated daily to provide the latest estimates of rainfall probability out to 28 days.

  12. Popup - Daily historical

  13. Past 5 Days

    South Johnstone Past 5 Days

    This Month
    Minimum Maximum Rainfall
    Monday
    Aug 10
    15.4 °C 23.9 °C
    0.0 mm
    Tuesday
    Aug 11
    12.9 °C 25.6 °C
    0.0 mm
    Wednesday
    Aug 12
    16.7 °C 27.7 °C
    0.0 mm
    Thursday
    Aug 13
    21.0 °C 27.3 °C
    0.0 mm
    Friday
    Aug 14
    16.5 °C 26.9 °C
    0.0 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 29.2° 07/08/2020 Coldest this month 12.9° 11/08/2020
    Hottest on record 32.3 26/08/1982 Coldest on record 6.8 03/08/1990
    Hottest this year 39.3° 15/02/2020 Coldest this year 8.8° 29/07/2020
    Long term average 25.4° Long term average 15.6°
    Average this month 25.5° Average this month 17.4°
    Hottest August On Record Avg. max. temp. 27.2° 1981 Coldest August on record Avg. min. temp. 12.2° 1990
    South Johnstone rainfall history (17.5987°S, 145.9947°E, 13m AMSL)
    RAINFALL
    Wettest This Month 25.4mm 03/08/2020 Total This Month 54.2mm
    7.0 days
    Long Term Average 90.9mm 13.9 days Wettest August on record 414.3mm 1959
    Driest on record 5.1mm 1927
  15. Popup - Radar

    Weather Radar for QLD

  16. Year to Date

    South Johnstone Year To Date

    Average Rainfall To Aug 2811.1mm 142.5 day(s)
    Total For 2020 2821.4mm 144.0 day(s)
    Total To This Day 2019 2419.6mm 159.0 day(s)
    Wettest Day 162.0mm Mar11
    Lowest Temperature 8.8°C Jul29
    Highest Temperature 39.3°C Feb15
  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) 31.4 30.9 30.0 28.3 26.3 24.6 24.0 25.4 27.3 29.1 30.6 31.3 28.3
    Mean Min (°C) 22.7 22.9 22.2 20.7 18.7 16.2 15.2 15.6 16.9 19.0 20.8 22.1 19.4
    Mean Rain (mm) 540.3 594.6 629.4 405.2 277.2 159.9 113.6 90.9 84.5 98.8 149.4 266.3 3414.9
    Mean Rain Days 18.3 18.9 21.2 20.0 18.8 15.8 15.6 13.9 12.2 11.3 12.0 14.2 189.4