Forecast
Merriwa (32.1394°S, 150.3557°E, 246m AMSL) set as my default location ›
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My MLA
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Current condition
TOMORROW18° 28° showers increasing Chance of rain: 90% Likely amount: 5-10mm First
lightLast light Sunrise Sunset 6:36am EDT 7:00am EDT 7:08pm EDT 7:32pm EDT NOW28.7° Feels Like: 27.7° Relative Humidity: 48% Dew: 16.9° Wind: SE 17km/h Gust: 19km/h Rainfall since 9am: 0.0mm Pressure: 1014.6hPa -
Today Weather
MerriwaNow29.0°cFeels Like:28.7°Wind:SE 15km/hGusts:15km/hHumidity:50%18°Min28°MaxToday in MerriwaCloudy. High chance of showers, most likely in the afternoon and evening. The chance of a thunderstorm. Winds NW/NE 15 to 20 km/h tending W/NW 15 to 25 km/h in the morning then shifting S/SE 20 to 30 km/h in the late afternoon. Overnight temperatures falling to around 18 with daytime temperatures reaching the mid to high 20s.Tomorrow18°Min28°MaxCloudy. Winds SE 20 to 30 km/h. Overnight temperatures falling to between 11 and 16 with daytime temperatures reaching between 19 and 24. -
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Warnings
There are no current warnings for Merriwa
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7 day forecast
Today: Cloudy. High chance of showers, most likely in the afternoon and evening. The chance of a thunderstorm. Winds NW/NE 15 to 20 km/h tending W/NW 15 to 25 km/h in the morning then shifting S/SE 20 to 30 km/h in the late afternoon. Overnight temperatures falling to around 18 with daytime temperatures reaching the mid to high 20s.
Forecast for Merriwa (32.1394°S, 150.3557°E, 246m AMSL) Wed Thu Fri Sat Sun Mon Tue Summary Minimum 18° 13° 11° 12° 14° 14° 15° Maximum 28° 25° 27° 27° 28° 30° 30° Chance of rain 90% 5% 5% 20% 20% 40% 80% Likely amount 5-10mm < 1mm < 1mm < 1mm < 1mm < 1mm 1-5mm UV index Very High Very High Very High High High High High Fire Danger Rating Moderate Moderate Moderate Moderate - - - 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 12
(km/h)15
(km/h)21
(km/h)28
(km/h)7
(km/h)13
(km/h)5
(km/h)16
(km/h)6
(km/h)13
(km/h)6
(km/h)14
(km/h)7
(km/h)14
(km/h)Wind direction NNW W SSE SSE S S W S NW SSW NW SW NW SSW Relative humidity 74% 73% 72% 44% 84% 39% 89% 43% 88% 42% 78% 34% 72% 41% Dew point 18°C 20°C 12°C 11°C 13°C 11°C 15°C 13°C 17°C 13°C 15°C 12°C 15°C 15°C -
28 Day Rainfall forecast
Merriwa Rain Forecast
Merriwa 28-day Rainfall ForecastSUNMONTUEWEDTHUFRISAT19
20
21
CHANCE OF RAINFALL WITHIN DISTRICTNIL < 25%LOW 25% to 50%MEDIUM 50% to 75%HIGH ≥ 75%Issued Mar19Issue Notes
The hemispheric long wave pattern has remained stable in recent weeks. There are four main troughs. Currently the most significant troughs are near the longitudes of the Indian Ocean, eastern Australia, the southeast Pacific, and the Atlantic Ocean.
Summary:
Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 2024-03-18, 2024-03-23 and 2024-04-05. Rain events originating in the tropics and moving south are possible about 2024-03-18, 2024-03-23 and 2024-03-28. Over Western Australia the strongest cold fronts should occur about 2024-03-18 and 2024-03-23.
Forecast ExplanationThis 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.
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12 Month Rainfall Forecast
Merriwa Rain Forecast
Merriwa 12-month Rainfall ForecastMarAprMayJunJulAugSepOctNovDecJanFeb20242025676688648647105012 - 34 - 78 - 910Well below normalBelow normalNear normalAbove normalWell above normalIssue Notes - Issued Mar 5
ENSO status: El Niño, breaking down. IOD status: Neutral. SAM status: Neutral, trending slightly positive. The El Niño Southern Oscillation (ENSO) is in an El Niño and is starting to break down. All international models indicate neutral conditions should return by late April or early May. The Southern Oscillation Index (SOI) is back below the threshold of -7, but is varying significantly with tropical activity over Australia and the Pacific. Waters in the Coral Sea are far warmer than normal, especially for an El Niño, and are offsetting the effects of this event. El Niño only has a small effect during autumn, typically increasing rainfall over the Nullarbor and SA, but having little effect elsewhere. The Indian Ocean Dipole (IOD) is in a neutral phase. Ocean temperatures are high across most of the Indian Ocean, with only cooler waters near the WA coast. The IOD has little to no effect during autumn. The Southern Annular Mode (SAM) is neutral and will slightly favour a positive phase during March and April and return closer to true neutral in May. A positive SAM increases easterly winds, increasing rainfall and thunderstorm activity in the east. As we go closer to winter, a positive SAM also reduces cold fronts and rainfall over southern Australia. Rainfall outlooks are predicting average rainfall for the vast majority of Australia throughout autumn. There are some weak signals that southwest WA could be slightly drier than normal in April, and southeast Qld and NSW could be slightly wetter during May, but otherwise near average.
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Popup - Daily historical
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Long range rainfall forecast
Merriwa Rain Forecast
Merriwa 28-day Rainfall ForecastSUNMONTUEWEDTHUFRISAT19
20
21
CHANCE OF RAINFALL WITHIN DISTRICTNIL < 25%LOW 25% to 50%MEDIUM 50% to 75%HIGH ≥ 75%Issued Mar19Issue Notes
The hemispheric long wave pattern has remained stable in recent weeks. There are four main troughs. Currently the most significant troughs are near the longitudes of the Indian Ocean, eastern Australia, the southeast Pacific, and the Atlantic Ocean.
Summary:
Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 2024-03-18, 2024-03-23 and 2024-04-05. Rain events originating in the tropics and moving south are possible about 2024-03-18, 2024-03-23 and 2024-03-28. Over Western Australia the strongest cold fronts should occur about 2024-03-18 and 2024-03-23.
Forecast ExplanationThis 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.
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Past 5 Days
Merriwa Past 5 Days
This MonthMinimum Maximum Rainfall Friday
Mar 1517.4 °C 24.2 °C 0.0 mmSaturday
Mar 1615.8 °C 22.9 °C 0.0 mmSunday
Mar 1715.5 °C 26.4 °C 3.6 mmMonday
Mar 1816.2 °C 25.9 °C 13.6 mmTuesday
Mar 1917.1 °C 31.5 °C 6.6 mmLegend -
Almanac
Almanac
Merriwa minimum temp history (32.1394°S, 150.3557°E, 246m AMSL) MAXIMUM TEMPERATURE MINIMUM TEMPERATURE Hottest this month 39.6° 01/03/2024 Coldest this month 10.5° 12/03/2024 Hottest on record 37.4 20/03/2015 Coldest on record 3.0 30/03/2008 Hottest this year 39.6° 01/03/2024 Coldest this year 10.5° 12/03/2024 Long term average 27.6° Long term average 13.8° Average this month 31.2° Average this month 15.0° Hottest March On Record Avg. max. temp. 29.8° 2016 Coldest March on record Avg. min. temp. 11.4° 2008 Merriwa rainfall history (32.1394°S, 150.3557°E, 246m AMSL) RAINFALL Wettest This Month 13.6mm 18/03/2024 Total This Month 24.2mm
5.0 daysLong Term Average 58.4mm 6.4 days Wettest March on record 208.6mm 1982 Driest on record 0.0mm 1981 -
Year to Date
Merriwa Year To Date
Average Rainfall To Mar 195.2mm 20.6 day(s) Total For 2024 200.0mm 24.0 day(s) Total To This Day 2023 70.8mm 18.0 day(s) Wettest Day 43.0mm Jan 5 Lowest Temperature 10.5°C Mar12 Highest Temperature 39.6°C Mar 1 -
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Popup - Monthly historical
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Climatology
Climate History
Merriwa Climatology
Merriwa Long-Term Averages
Long-Term Averages Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann Mean Max (°C) 31.4 30.0 27.6 23.6 19.7 16.3 16.2 18.1 21.8 25.3 27.9 29.8 24.0 Mean Min (°C) 16.8 15.6 13.8 9.4 5.2 3.8 2.3 2.8 5.2 8.6 12.2 14.5 9.1 Mean Rain (mm) 78.3 58.5 58.4 33.9 37.0 38.3 36.3 33.0 38.6 50.8 60.9 72.9 593.5 Mean Rain Days 7.9 6.3 6.4 4.9 6.4 7.3 7.2 6.4 6.5 6.8 7.8 7.5 81.2