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

  2. Mount Isa Local Weather

    20.73°S, 139.49°E
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    Now in Mount Isa

    Updated at 05:40 EST

    PAST 24 HOURS

    23.9 °C

    Feels like 25.7 °C
    Dew Point
    19.8 °C
    Gusts
    9km/h
    Relative Humidity
    78%
    Pressure
    1012.3hPa
    Wind
    NE 9km/h
    Rainfall
    0.0mm

    Mount Isa

    May Downs

    Carters Bore

    Lake Julius

    Mount Isa Wednesday Forecast

    Mostly sunny
    Mostly sunny
    24 °C
    40 °C
    30%
    < 1mm
    Mount Isa for Wednesday
    Partly cloudy. Slight chance of a shower. The chance of a thunderstorm during this afternoon and evening. Winds NW/NE 15 to 25 km/h becoming light in the middle of the day then becoming E/SE 15 to 20 km/h in the late afternoon. Daytime maximum temperatures around 40.
    Fire Danger
    High
    DAM LEVELS

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  4. Mount Isa 48 HOUR FORECAST

    TEMP WIND RAIN CHANCE

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  6. 7 day forecast

    Today: Partly cloudy. Slight chance of a shower. The chance of a thunderstorm during this afternoon and evening. Winds NW/NE 15 to 25 km/h becoming light in the middle of the day then becoming E/SE 15 to 20 km/h in the late afternoon. Daytime maximum temperatures around 40.

    Forecast for Mount Isa (20.7266°S, 139.4943°E, 365m AMSL)
      Wed Thu Fri Sat Sun Mon Tue
    Summary Mostly sunny Late shower Mostly sunny Mostly sunny Late shower Late shower Late shower
    Minimum 24° 25° 25° 25° 26° 25° 23°
    Maximum 40° 40° 41° 41° 40° 39° 38°
    Chance of rain 30% 40% 30% 50% 40% 90% 50%
    Likely amount < 1mm 1-5mm < 1mm 1-5mm 1-5mm 1-5mm < 1mm
    UV index Extreme Extreme Extreme Extreme 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 12
    (km/h)     		11
    (km/h)     		22
    (km/h)     		14
    (km/h)     		12
    (km/h)     		10
    (km/h)     		16
    (km/h)     		11
    (km/h)     		16
    (km/h)     		8
    (km/h)     		16
    (km/h)     		12
    (km/h)     		20
    (km/h)     		16
    (km/h)
    Wind direction N SE ENE ENE N NE NW NNE W WNW SE S ESE ESE
    Relative humidity 47% 26% 36% 21% 37% 19% 41% 22% 38% 25% 42% 31% 43% 28%
    Dew point 20°C 16°C 17°C 13°C 18°C 12°C 20°C 14°C 18°C 15°C 19°C 18°C 17°C 16°C

  7. Sunrise and sunset times

    Sunrise / Sunset for Mount Isa (20.7266°S, 139.4943°E, 365m AMSL)
    First light Sunrise Sunset Last light Moon rise Moon set Moon phase Last quarter New moon First quarter
    5:29am EST 5:54am EST 7:15pm EST 7:40pm EST 11:01am EST Waning gibbous Last quarter Dec 12 New moon Dec 20 First quarter Dec 28

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  9. Tides graph

    There is no current data for Mount Isa

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  11. Mount Isa Past 5 Days

    This Month
    Minimum Maximum Rainfall
    Friday
    Dec 05     		24.0 °C 40.4 °C
    0.0 mm
    Saturday
    Dec 06     		24.1 °C 41.8 °C
    0.0 mm
    Sunday
    Dec 07     		24.9 °C 42.7 °C
    0.0 mm
    Monday
    Dec 08     		25.1 °C 37.4 °C
    0.2 mm
    Tuesday
    Dec 09     		22.2 °C 41.3 °C
    0.0 mm
    Legend

  12. Almanac

    Mount Isa minimum temp history (20.7266°S, 139.4943°E, 365m AMSL)
    MAXIMUM TEMPERATURE MINIMUM TEMPERATURE
    Hottest this month 42.7° 07/12/2025 Coldest this month 16.6° 04/12/2025
    Hottest on record 45.1 01/12/2006 Coldest on record 13.4 07/12/1978
    Hottest this year 44.4° 11/01/2025 Coldest this year -1.4° 09/07/2025
    Long term average 37.4° Long term average 23.1°
    Average this month 39.1° Average this month 21.8°
    Hottest December On Record Avg. max. temp. 39.7° 2002 Coldest December on record Avg. min. temp. 20.1° 2011
    Mount Isa rainfall history (20.7266°S, 139.4943°E, 365m AMSL)
    RAINFALL
    Wettest This Month 0.2mm 08/12/2025 Total This Month 0.2mm
    1.0 days
    Long Term Average 66.7mm 7.6 days Wettest December on record 275.2mm 2000
    Driest on record 0.0mm 2018

  13. Mount Isa Year To Date

    Average Rainfall To Dec 461.9mm 49.5 day(s)
    Total For 2025 470.6mm 56.0 day(s)
    Total To This Day 2024 642.0mm 61.0 day(s)
    Wettest Day 75.2mm Feb 7
    Lowest Temperature -1.4°C Jul 9
    Highest Temperature 44.4°C Jan11

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  2. Warnings

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