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Forecast

Great Western (37.1527°S, 142.8559°E, 226m AMSL) set as my default location ›

  1. My MLA

  2. Current condition

    TOMORROW
    Mostly sunny 15°
    mostly sunny
    Chance of rain: 50%
    Likely amount: < 1mm
    First
    light
    Sunrise Sunset Last light
    Sunrise Sunset
    7:02am EST 7:30am EST 5:22pm EST 5:50pm EST
    NOW
    9.4° Feels Like: 7.1°
    Relative Humidity: 82%
    Dew: 6.5°
    Wind: ENE 7km/h
    Gust: 9km/h
    Rainfall since 9am: 0.2mm
    Pressure: 1020.6hPa
  3. Today Weather

    Great Western
    Now
    8.8°c
    Feels Like:
    5.8°
    Wind:
    N 11km/h
    Gusts:
    15km/h
    Humidity:
    84%
    Mostly sunny
     
    Min
    15°
    Max
    Today in Great Western
    Partly cloudy. Medium chance of showers in the southwest, most likely in the late afternoon and evening. Winds NE 15 to 20 km/h tending N before dawn then becoming light in the morning. Overnight temperatures falling to around 7 with daytime temperatures reaching around 16.
    Tomorrow
    Mostly sunny
    Min
    15°
    Max
    Areas of morning fog then a partly cloudy day. Slight chance of a shower in the south. Light winds. Overnight temperatures falling to around 7 with daytime temperatures reaching around 16.
  4. Radar

  5. Popup Radar

  6. Warnings

    There are no current warnings for Great Western

  7. Next 48 Hours


    Next 48 Hours


  8. 7 day forecast

    Today: Partly cloudy. Medium chance of showers in the southwest, most likely in the late afternoon and evening. Winds NE 15 to 20 km/h tending N before dawn then becoming light in the morning. Overnight temperatures falling to around 7 with daytime temperatures reaching around 16.

    Forecast for Great Western (37.1527°S, 142.8559°E, 226m AMSL)
      Wed Thu Fri Sat Sun Mon Tue
    Summary Mostly sunny Mostly sunny Mostly sunny Mostly sunny Showers easing Showers Possible shower
    Minimum
    Maximum 15° 15° 15° 16° 13° 11° 11°
    Chance of rain 50% 60% 5% 90% 80% 80% 70%
    Likely amount < 1mm < 1mm < 1mm 5-10mm 1-5mm 1-5mm < 1mm
    UV index Low Low Low Low - - -
    Frost risk Nil Nil Slight Nil Nil Slight Slight
      9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm
    Wind speed 10
    (km/h)
    14
    (km/h)
    4
    (km/h)
    11
    (km/h)
    6
    (km/h)
    16
    (km/h)
    21
    (km/h)
    29
    (km/h)
    17
    (km/h)
    18
    (km/h)
    15
    (km/h)
    19
    (km/h)
    14
    (km/h)
    14
    (km/h)
    Wind direction NNE N N WNW NNE N NNE NNE NW WNW NW WNW W WSW
    Relative humidity 88% 59% 89% 69% 94% 66% 80% 55% 89% 70% 85% 72% 83% 74%
    Dew point 7°C 7°C 8°C 10°C 6°C 9°C 6°C 7°C 7°C 7°C 5°C 6°C 3°C 6°C
  9. 28 Day Rainfall forecast

    Great Western Rain Forecast


    Great Western 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    26
    27
    LOW
    28
    29
    30
    HIGH
    31
    HIGH
    Jun 1
    MEDIUM
    2
    LOW
    3
    4
    5
    6
    LOW
    7
    LOW
    8
    9
    10
    LOW
    11
    LOW
    12
    LOW
    13
    LOW
    14
    LOW
    15
    MEDIUM
    16
    17
    LOW
    18
    MEDIUM
    19
    20
    LOW
    21
    LOW
    22
    LOW
    23
    LOW
    24
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued May26

    Issue Notes

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

    Summary:

    Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 31 May to 4 June, 15 June to 19 June, and 24 June to 28 June. Rain events originating in the tropics and moving south are possible about 9 June to 13 June. Over Western Australia the strongest cold fronts should occur about 31 May to 4 June, 13 June to 17 June, and 25 June to 29 June.

    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

    Great Western Rain Forecast


    Great Western 12-month Rainfall Forecast
    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec
    Jan
    Feb
    Mar
    Apr
    2020
    2021
    6
    8
    7
    8
    7
    7
    8
    8
    7
    6
    5
    6
    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 May 13

    ENSO status: Neutral IOD status: Neutral SAM status: Trending neutral Sea surface temperatures (SSTs) across the equatorial central Pacific remained stable throughout April with the Nino3.4 index registering a value of 0.5. On the other hand, the Southern Oscillation Index (SOI) recorded a value of -0.5 during the same month. The current outlook suggests slightly warmer than average SSTs will persist across the equatorial Pacific Ocean during the end of autumn and early winter, potentially cooling by the second half of the austral winter. Eight out of eight international models continue to suggest a cooling trend of the NINO3.4 region throughout the Austral winter, with all models on the cooler side of neutral by September. The current International Research Institute for Climate and Society (IRI) suggests a 40:35 chance for neutral:La Nina conditions by the Austral spring. To the west of Australia, the Indian Ocean Dipole (IOD) remains neutral, normal for this time of the year. All six main international models, however, continue to hint at a possible negative IOD establishing from mid-to-late winter. In terms of precipitation across Australia, the current medium term outlook continues to favour above average rainfall for most of the country. This outlook is mainly driven by warmer SSTs across northwestern Australia, enhanced soil moisture across some parts of the continent and early indications of a cool phase in the Pacific Ocean, which increases the moisture content across the northern tropics. Across parts of southern Vic, NSW and Qld (east of the Great Dividing Range), southwestern WA and Tasmania the outlook is for average-to-slightly below average rainfall over the coming months as these regions transition to their ‘drier’ part of the year (eastern seaboard) or tend to be less influenced by the IOD (SW WA and Tasmania) but more on the phases of the Southern Annular Mode (SAM). This doesn’t include any severe weather events like east coast lows.

  11. Long range rainfall forecast

    Great Western Rain Forecast


    Great Western 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    26
    27
    LOW
    28
    29
    30
    HIGH
    31
    HIGH
    Jun 1
    MEDIUM
    2
    LOW
    3
    4
    5
    6
    LOW
    7
    LOW
    8
    9
    10
    LOW
    11
    LOW
    12
    LOW
    13
    LOW
    14
    LOW
    15
    MEDIUM
    16
    17
    LOW
    18
    MEDIUM
    19
    20
    LOW
    21
    LOW
    22
    LOW
    23
    LOW
    24
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued May26

    Issue Notes

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

    Summary:

    Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 31 May to 4 June, 15 June to 19 June, and 24 June to 28 June. Rain events originating in the tropics and moving south are possible about 9 June to 13 June. Over Western Australia the strongest cold fronts should occur about 31 May to 4 June, 13 June to 17 June, and 25 June to 29 June.

    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

    Great Western Past 5 Days

    This Month
    Minimum Maximum Rainfall
    Friday
    May 22
    5.6 °C 13.6 °C
    0.0 mm
    Saturday
    May 23
    8.2 °C 14.3 °C
    0.2 mm
    Sunday
    May 24
    8.0 °C 11.1 °C
    0.8 mm
    Monday
    May 25
    6.1 °C 15.3 °C
    0.2 mm
    Tuesday
    May 26
    2.1 °C 15.5 °C
    0.0 mm
    Legend
  14. Almanac

    Almanac


    Great Western minimum temp history (37.1527°S, 142.8559°E, 226m AMSL)
    MAXIMUM TEMPERATURE MINIMUM TEMPERATURE
    Hottest this month 21.4° 07/05/2020 Coldest this month 0.6° 15/05/2020
    Hottest on record 27.5 07/05/2002 Coldest on record -2.6 16/05/1999
    Hottest this year 41.3° 31/01/2020 Coldest this year 0.6° 15/05/2020
    Long term average 16.3° Long term average 6.3°
    Average this month 14.7° Average this month 5.8°
    Hottest May On Record Avg. max. temp. 17.8° 2002 Coldest May on record Avg. min. temp. 4.8° 2004
    Great Western rainfall history (37.1527°S, 142.8559°E, 226m AMSL)
    RAINFALL
    Wettest This Month 11.8mm 20/05/2020 Total This Month 40.8mm
    11.0 days
    Long Term Average 39.8mm 11.9 days Wettest May on record 110.0mm 2016
    Driest on record 6.4mm 1996
  15. Popup - Radar

    Weather Radar for VIC

  16. Year to Date

    Great Western Year To Date

    Average Rainfall To May 158.7mm 34.0 day(s)
    Total For 2020 168.2mm 37.0 day(s)
    Total To This Day 2019 145.4mm 27.0 day(s)
    Wettest Day 26.0mm Feb 1
    Lowest Temperature 0.6°C May15
    Highest Temperature 41.3°C Jan31
  17. Popup - Monthly historical

  18. Climatology

    Climate History

    Great Western Climatology

    Long-Term Averages
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
    Mean Max (°C) 29.2 28.7 25.4 20.7 16.3 13.2 12.4 13.9 16.7 20.0 23.8 26.6 20.6
    Mean Min (°C) 13.6 13.7 11.5 8.5 6.3 4.7 4.2 4.7 6.0 7.4 9.8 11.3 8.5
    Mean Rain (mm) 37.6 30.6 20.7 30.0 39.8 55.0 57.6 53.9 54.3 36.1 41.0 35.9 490.7
    Mean Rain Days 4.9 4.5 5.8 6.9 11.9 15.2 18.4 15.7 12.9 10.0 7.3 7.3 116.7