Monthly outlook for Adelaide, WA: average high 85.3°, average low 56.2°. That is 5.1° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.5 inches. The warmest day looks like 15 August (94.4°), the coolest 9 August (53.1°).
85.3°/56.2°
Average high / low
+5.1°
Above normal
0 / 2
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
86.5°
77.1°
+5.2°
18 August – 27 August
83.3°
74.6°
+4.8°
28 August – 6 September
at normal
72.8°
—
August records over 66 years
98.4°9 August 1981All-time high
46°22 August 1973All-time low
Climate normals and records are computed from the nearest reference point — Tacoma (7 mi).
Sun, 0977° / 53°0
77 °
Adelaide, Sunday, 9 August
Partly cloudy. High 77°, low 53°.
Pressure30.03 inHg
Wind3.3 mph SW
Humidity38%
Visibility6.2 mi
Dew point49°
Mon, 1084° / 53°0
84 °
Adelaide, Monday, 10 August
Partly cloudy. High 84°, low 53°.
Pressure30.09 inHg
Wind3.5 mph SW
Humidity43%
Visibility6.2 mi
Dew point51°
Tue, 1187° / 54°0
87 °
Adelaide, Tuesday, 11 August
Clear. High 87°, low 54°.
Pressure30.09 inHg
Wind1.4 mph NW
Humidity37%
Visibility6.2 mi
Dew point51°
Wed, 1281° / 57°0
81 °
Adelaide, Wednesday, 12 August
Clear. High 81°, low 57°.
Pressure30.00 inHg
Wind6.5 mph SW
Humidity45%
Visibility6.2 mi
Dew point52°
Thu, 1383° / 54°0
83 °
Adelaide, Thursday, 13 August
Clear. High 83°, low 54°.
Pressure29.91 inHg
Wind9.8 mph N
Humidity30%
Visibility—
Dew point46°
Fri, 1489° / 57°0
89 °
Adelaide, Friday, 14 August
Clear. High 89°, low 57°.
Pressure29.94 inHg
Wind8.6 mph N
Humidity28%
Visibility—
Dew point48°
Sat, 1594° / 59°0
94 °
Adelaide, Saturday, 15 August
Mostly clear. High 94°, low 59°.
Pressure29.97 inHg
Wind6.8 mph NW
Humidity19%
Visibility—
Dew point42°
Sun, 1694° / 60°0
94 °
Adelaide, Sunday, 16 August
Clear. High 94°, low 60°.
Pressure29.97 inHg
Wind7.7 mph NW
Humidity21%
Visibility—
Dew point43°
Mon, 1792° / 59°0
92 °
Adelaide, Monday, 17 August
Clear. High 92°, low 59°.
Pressure29.94 inHg
Wind7.2 mph N
Humidity23%
Visibility—
Dew point45°
Tue, 1886° / 57°0
86 °
Adelaide, Tuesday, 18 August
Overcast. High 86°, low 57°.
Pressure30.00 inHg
Wind6.8 mph NW
Humidity28%
Visibility—
Dew point46°
Wed, 1982° / 56°0
82 °
Adelaide, Wednesday, 19 August
Overcast. High 82°, low 56°.
Pressure30.06 inHg
Wind6.5 mph N
Humidity32%
Visibility—
Dew point46°
Thu, 2083° / 57°0
83 °
Adelaide, Thursday, 20 August
Clear. High 83°, low 57°.
Pressure30.03 inHg
Wind9.5 mph NE
Humidity36%
Visibility—
Dew point50°
Fri, 2184° / 56°0
84 °
Adelaide, Friday, 21 August
Clear. High 84°, low 56°.
Pressure30.00 inHg
Wind7.3 mph N
Humidity34%
Visibility—
Dew point48°
Sat, 2287° / 56°0
87 °
Adelaide, Saturday, 22 August
Overcast. High 87°, low 56°.
Pressure29.94 inHg
Wind6.4 mph W
Humidity33%
Visibility—
Dew point48°
Sun, 2378° / 53°0
78 °
Adelaide, Sunday, 23 August
Overcast. High 78°, low 53°.
Pressure30.03 inHg
Wind4.9 mph W
Humidity46%
Visibility—
Dew point49°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2474° / 56°0.06
74 °
Adelaide, Monday, 24 August
Climate normal for this date — 60-year average.
Average high74°
Average low56°
Average precipitation0.06 in
Chance of precipitation17%
Record high90° (2025)
Record low50° (2012)
Tue, 2574° / 55°0.05
74 °
Adelaide, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high74°
Average low55°
Average precipitation0.05 in
Chance of precipitation17%
Record high89° (2025)
Record low48° (1995)
Wed, 2675° / 55°0.03
75 °
Adelaide, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high75°
Average low55°
Average precipitation0.03 in
Chance of precipitation18%
Record high89° (2016)
Record low49° (1969)
Thu, 2775° / 56°0.06
75 °
Adelaide, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high75°
Average low56°
Average precipitation0.06 in
Chance of precipitation18%
Record high92° (1986)
Record low49° (1962)
Fri, 2874° / 56°0.04
74 °
Adelaide, Friday, 28 August
Climate normal for this date — 60-year average.
Average high74°
Average low56°
Average precipitation0.04 in
Chance of precipitation15%
Record high92° (1967)
Record low46° (1960)
Sat, 2974° / 56°0.09
74 °
Adelaide, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high74°
Average low56°
Average precipitation0.09 in
Chance of precipitation23%
Record high88° (1996)
Record low49° (1969)
Sun, 3073° / 56°0.07
73 °
Adelaide, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high73°
Average low56°
Average precipitation0.07 in
Chance of precipitation25%
Record high86° (1987)
Record low46° (1965)
Mon, 3172° / 55°0.05
72 °
Adelaide, Monday, 31 August
Climate normal for this date — 60-year average.
Average high72°
Average low55°
Average precipitation0.05 in
Chance of precipitation23%
Record high91° (1987)
Record low47° (2008)
Tue, 0172° / 55°0.07
72 °
Adelaide, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high72°
Average low55°
Average precipitation0.07 in
Chance of precipitation25%
Record high89° (1987)
Record low47° (1964)
Wed, 0273° / 55°0.06
73 °
Adelaide, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high73°
Average low55°
Average precipitation0.06 in
Chance of precipitation25%
Record high93° (1988)
Record low46° (2000)
Thu, 0373° / 55°0.05
73 °
Adelaide, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high73°
Average low55°
Average precipitation0.05 in
Chance of precipitation18%
Record high92° (1988)
Record low46° (1975)
Fri, 0473° / 55°0.02
73 °
Adelaide, Friday, 4 September
Climate normal for this date — 60-year average.
Average high73°
Average low55°
Average precipitation0.02 in
Chance of precipitation15%
Record high87° (2017)
Record low47° (1965)
Sat, 0572° / 55°0.05
72 °
Adelaide, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high72°
Average low55°
Average precipitation0.05 in
Chance of precipitation22%
Record high94° (2017)
Record low47° (2015)
Sun, 0672° / 54°0.07
72 °
Adelaide, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high72°
Average low54°
Average precipitation0.07 in
Chance of precipitation23%
Record high91° (2017)
Record low46° (1969)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Adelaide, WA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Adelaide, WA since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.