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Forecast

Mount Isa (20.7266°S, 139.4943°E, 365m AMSL) set as my default location ›

  1. My MLA

  2. Current condition

    TODAY
    Mostly sunny 25° 42°
    mostly sunny
    Chance of rain: 30%
    Likely amount: < 1mm
    First
    light     		Sunrise Sunset Last light
    Sunrise Sunset
    5:32am EST 5:56am EST 6:56pm EST 7:20pm EST
    NOW
    32.8° Feels Like: 28.2°
    Relative Humidity: 25%
    Dew: 10.2°
    Wind: S 24km/h
    Gust: 30km/h
    Rainfall since 9am: 0.0mm
    Pressure: 1011.9hPa

  3. Today Weather

    Mount Isa
    Now
    32.0°c
    Feels Like:
    29.7°
    Wind:
    SE 15km/h
    Gusts:
    19km/h
    Humidity:
    29%
    Mostly sunny
     
    25°
    Min
    42°
    Max
    Today in Mount Isa
    Sunny morning. Slight chance of a shower in the afternoon and evening. The chance of a thunderstorm in the afternoon and evening. Winds SE 25 to 35 km/h tending NE/SE in the morning then tending S/SE 15 to 20 km/h in the early afternoon. Overnight temperatures falling to the mid to high 20s with daytime temperatures reaching the low to mid 40s.
    Tomorrow
    Mostly sunny
    25°
    Min
    42°
    Max
    Partly cloudy. Slight chance of a shower. The chance of a thunderstorm. Winds NE/SE 20 to 30 km/h tending NW/NE 15 to 25 km/h in the middle of the day then becoming light in the evening. Overnight temperatures falling to the mid to high 20s with daytime temperatures reaching the low to mid 40s.

  4. Radar

  5. Popup Radar

  6. Warnings

  7. Next 48 Hours


    Next 48 Hours

  8. 7 day forecast

    Today: Sunny morning. Slight chance of a shower in the afternoon and evening. The chance of a thunderstorm in the afternoon and evening. Winds SE 25 to 35 km/h tending NE/SE in the morning then tending S/SE 15 to 20 km/h in the early afternoon. Overnight temperatures falling to the mid to high 20s with daytime temperatures reaching the low to mid 40s.

    Forecast for Mount Isa (20.7266°S, 139.4943°E, 365m AMSL)
      Sat Sun Mon Tue Wed Thu Fri
    Summary Mostly sunny Mostly sunny Late shower Mostly sunny Late shower Mostly cloudy Mostly cloudy
    Minimum 25° 25° 24° 24° 23° 24° 22°
    Maximum 42° 42° 40° 39° 40° 40° 40°
    Chance of rain 30% 30% 50% 30% 40% 30% 20%
    Likely amount < 1mm 1-5mm 1-5mm 1-5mm < 1mm < 1mm < 1mm
    UV index Extreme Extreme Very High Very High Extreme Extreme Extreme
    Fire Danger Rating High High High 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 24
    (km/h)     		13
    (km/h)     		12
    (km/h)     		14
    (km/h)     		13
    (km/h)     		12
    (km/h)     		12
    (km/h)     		11
    (km/h)     		15
    (km/h)     		15
    (km/h)     		22
    (km/h)     		22
    (km/h)     		20
    (km/h)     		15
    (km/h)
    Wind direction E ENE ENE NE NE N NE WNW SSE SSE SE SSE SE SE
    Relative humidity 15% 17% 23% 21% 39% 26% 41% 27% 39% 22% 25% 18% 19% 12%
    Dew point 7°C 12°C 13°C 15°C 19°C 16°C 20°C 16°C 18°C 14°C 13°C 11°C 7°C 5°C

  9. 28 Day Rainfall forecast

  10. 12 Month Rainfall Forecast

    Mount Isa Rain Forecast

    Mount Isa 12-month Rainfall Forecast
    Nov
    Dec
    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
    2024
    2025
    8
    9
    8
    6
    7
    8
    9
    9
    9
    8
    10
    8
    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 Oct 1

    ENSO status: La Niña Watch. IOD status: Neutral. SAM status: Negative. Trending slightly negative. The El Niño Southern Oscillation (ENSO) is in a La Niña Watch, meaning there is approximately a 50% chance of a La Niña developing this year. Overall, models are now starting to look more like La Niña, with more widespread ocean cooling occurring in the South Pacific, helped by the consistently strong trade winds. While these are good signs that La Niña is starting to develop, a declaration would likely happen no earlier than November, meaning this is more likely to be a late and weaker event if it does eventuate. A La Niña typically increases rainfall over northern and southeastern Australia during spring, but has little effect for southwestern WA. The Indian Ocean Dipole (IOD) is in a neutral phase and is now unlikely to develop into either phase this spring. Conditions are closer to a negative IOD at the moment, so there may be some minor increases in the frequency of northwest cloudbands impactingAustralia. A neutral IOD tends to bring a small increase in spring rainfall for southwest WA, but has little effect elsewhere. The Southern Annular Mode (SAM) is in a negative phase, continuing on from the initial sudden Stratospheric Warming (SW) events over Antarctica since mid-July. These events increase the chances of negative SAM events, but are having a lesser effect moving forward in October. A negative SAM increases the frequency of cold fronts. During spring, this increases rainfall over western Tas and southern Vic, but decreases rainfall over eastern Australia. Rainfall outlooks are showing close to average for most of the country during October, with a higher chance of above average rainfall for northern and eastern Australia, increasing further into November and December. Models are also hinting that rainfall is more likely to arrive in the form of showers and thunderstorms, rather than broad rainbands, meaning rainfall in practice will likely be hit-and-miss for most of Australia thisspring.

  11. Popup - Daily historical

  12. Long range rainfall forecast

  13. Past 5 Days

    Mount Isa Past 5 Days

    This Month
    Minimum Maximum Rainfall
    Monday
    Nov 04     		19.2 °C 40.7 °C
    0.0 mm
    Tuesday
    Nov 05     		20.3 °C 41.5 °C
    0.0 mm
    Wednesday
    Nov 06     		19.6 °C 41.4 °C
    0.0 mm
    Thursday
    Nov 07     		20.4 °C 40.9 °C
    0.0 mm
    Friday
    Nov 08     		22.9 °C 40.8 °C
    0.0 mm
    Legend

  14. Almanac

    Almanac

    Mount Isa minimum temp history (20.7266°S, 139.4943°E, 365m AMSL)
    MAXIMUM TEMPERATURE MINIMUM TEMPERATURE
    Hottest this month 41.9° 03/11/2024 Coldest this month 14.6° 03/11/2024
    Hottest on record 43.9 28/11/2015 Coldest on record 10.3 12/11/1999
    Hottest this year 43.1° 01/01/2024 Coldest this year -2.1° 19/07/2024
    Long term average 36.7° Long term average 21.5°
    Average this month 40.7° Average this month 18.8°
    Hottest November On Record Avg. max. temp. 39.8° 2015 Coldest November on record Avg. min. temp. 19.7° 1999
    Mount Isa rainfall history (20.7266°S, 139.4943°E, 365m AMSL)
    RAINFALL
    Wettest This Month 0.0mm 01/11/2024 Total This Month 0.0mm
    0.0 days
    Long Term Average 38.8mm 5.5 days Wettest November on record 205.6mm 2011
    Driest on record 0.0mm 1980

  15. Year to Date

    Mount Isa Year To Date

    Average Rainfall To Nov 393.9mm 41.8 day(s)
    Total For 2024 536.2mm 52.0 day(s)
    Total To This Day 2023 592.8mm 39.0 day(s)
    Wettest Day 92.4mm Mar25
    Lowest Temperature -2.1°C Jul19
    Highest Temperature 43.1°C Jan 1

  16. Popup - Radar

    Weather Radar for Australia

  17. Popup - Monthly historical

  18. Climatology

    Climate History

    Mount Isa Climatology

    Long-Term Averages
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
    Mean Max (°C) 36.5 35.5 34.5 32.1 28.0 25.1 24.9 27.6 31.6 34.9 36.7 37.4 32.0
    Mean Min (°C) 23.8 23.3 21.8 18.4 13.9 10.0 8.7 10.1 14.3 18.5 21.5 23.1 17.3
    Mean Rain (mm) 115.9 101.3 68.3 13.1 11.2 6.9 7.5 3.3 8.5 19.1 38.8 67.2 463.7
    Mean Rain Days 10.0 8.9 5.8 2.0 1.6 1.1 1.0 0.9 1.7 3.3 5.5 7.5 49.2

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