Monthly outlook for Peoria, AZ: average high 100.3°, average low 84.1°. That is 0.2° above the climate normal for August. Precipitation is expected on 6 days (about 1.4 inches), against a normal of 2 days and 0.7 inches. The warmest day looks like 9 August (110.9°), the coolest 13 August (78°).
100.3°/84.1°
Average high / low
+0.2°
Above normal
6 / 2
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
102.4°
100.4°
+1.1°
18 August – 27 August
96.8°
99.5°
-1.5°
28 August – 6 September
at normal
99.4°
—
August records over 66 years
114.6°7 August 2025All-time high
62.6°23 August 1968All-time low
Sun, 09111° / 88°0
111 °
Peoria, Sunday, 9 August
Clear. High 111°, low 88°.
Pressure29.80 inHg
Wind4.7 mph SW
Humidity22%
Visibility6.2 mi
Dew point56°
Mon, 10107° / 82°0.04
107 °
Peoria, Monday, 10 August
Light rain. High 107°, low 82°.
Pressure29.83 inHg
Wind9.1 mph SW
Humidity27%
Visibility6.2 mi
Dew point61°
Tue, 11102° / 81°0.02
102 °
Peoria, Tuesday, 11 August
Light rain. High 102°, low 81°.
Pressure29.88 inHg
Wind6.8 mph W
Humidity32%
Visibility6.2 mi
Dew point61°
Wed, 1293° / 82°0.41
93 °
Peoria, Wednesday, 12 August
Rain. High 93°, low 82°.
Pressure29.88 inHg
Wind5.1 mph NW
Humidity49%
Visibility6.2 mi
Dew point63°
Thu, 1397° / 78°0.37
97 °
Peoria, Thursday, 13 August
Rain. High 97°, low 78°.
Pressure29.85 inHg
Wind9.8 mph W
Humidity44%
Visibility—
Dew point62°
Fri, 1498° / 85°0
98 °
Peoria, Friday, 14 August
Mostly clear. High 98°, low 85°.
Pressure29.91 inHg
Wind8.3 mph NW
Humidity28%
Visibility—
Dew point53°
Sat, 15101° / 87°0
101 °
Peoria, Saturday, 15 August
Overcast. High 101°, low 87°.
Pressure29.94 inHg
Wind11.8 mph SW
Humidity24%
Visibility—
Dew point52°
Sun, 16103° / 87°0
103 °
Peoria, Sunday, 16 August
Overcast. High 103°, low 87°.
Pressure29.97 inHg
Wind11.9 mph W
Humidity21%
Visibility—
Dew point48°
Mon, 17104° / 89°0
104 °
Peoria, Monday, 17 August
Partly cloudy. High 104°, low 89°.
Pressure29.91 inHg
Wind8.6 mph S
Humidity24%
Visibility—
Dew point54°
Tue, 18104° / 85°0.11
104 °
Peoria, Tuesday, 18 August
Light rain. High 104°, low 85°.
Pressure29.88 inHg
Wind13.2 mph E
Humidity25%
Visibility—
Dew point55°
Wed, 1998° / 85°0.03
98 °
Peoria, Wednesday, 19 August
Light rain. High 98°, low 85°.
Pressure29.91 inHg
Wind11.4 mph SW
Humidity33%
Visibility—
Dew point58°
Thu, 2098° / 83°0.12
98 °
Peoria, Thursday, 20 August
Light rain. High 98°, low 83°.
Pressure29.88 inHg
Wind10.1 mph W
Humidity38%
Visibility—
Dew point61°
Fri, 2194° / 83°0.17
94 °
Peoria, Friday, 21 August
Light rain. High 94°, low 83°.
Pressure29.88 inHg
Wind17.1 mph N
Humidity38%
Visibility—
Dew point60°
Sat, 2288° / 80°0.09
88 °
Peoria, Saturday, 22 August
Light rain. High 88°, low 80°.
Pressure29.91 inHg
Wind20.5 mph NW
Humidity38%
Visibility—
Dew point58°
Sun, 2398° / 82°0
98 °
Peoria, Sunday, 23 August
Light rain. High 98°, low 82°.
Pressure29.88 inHg
Wind7.9 mph NE
Humidity34%
Visibility—
Dew point57°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 24100° / 78°0.01
100 °
Peoria, Monday, 24 August
Climate normal for this date — 60-year average.
Average high100°
Average low78°
Average precipitation0.01 in
Chance of precipitation10%
Record high112° (2020)
Record low66° (1992)
Tue, 2599° / 78°0.02
99 °
Peoria, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high99°
Average low78°
Average precipitation0.02 in
Chance of precipitation13%
Record high109° (2011)
Record low68° (1990)
Wed, 26100° / 78°0.02
100 °
Peoria, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high100°
Average low78°
Average precipitation0.02 in
Chance of precipitation17%
Record high110° (2001)
Record low69° (1960)
Thu, 27100° / 78°0.06
100 °
Peoria, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high100°
Average low78°
Average precipitation0.06 in
Chance of precipitation13%
Record high110° (2011)
Record low68° (1972)
Fri, 28101° / 78°0.02
101 °
Peoria, Friday, 28 August
Climate normal for this date — 60-year average.
Average high101°
Average low78°
Average precipitation0.02 in
Chance of precipitation10%
Record high111° (2023)
Record low69° (1960)
Sat, 29101° / 78°0.02
101 °
Peoria, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high101°
Average low78°
Average precipitation0.02 in
Chance of precipitation8%
Record high111° (2023)
Record low70° (1993)
Sun, 30100° / 78°0.02
100 °
Peoria, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high100°
Average low78°
Average precipitation0.02 in
Chance of precipitation13%
Record high110° (2022)
Record low69° (2010)
Mon, 31100° / 78°0.02
100 °
Peoria, Monday, 31 August
Climate normal for this date — 60-year average.
Average high100°
Average low78°
Average precipitation0.02 in
Chance of precipitation12%
Record high108° (2011)
Record low68° (1962)
Tue, 0199° / 78°0.03
99 °
Peoria, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high99°
Average low78°
Average precipitation0.03 in
Chance of precipitation15%
Record high108° (1982)
Record low67° (1992)
Wed, 0299° / 77°0.05
99 °
Peoria, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high99°
Average low77°
Average precipitation0.05 in
Chance of precipitation13%
Record high108° (1982)
Record low65° (1992)
Thu, 03100° / 77°0.01
100 °
Peoria, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high100°
Average low77°
Average precipitation0.01 in
Chance of precipitation7%
Record high108° (2022)
Record low66° (1961)
Fri, 0499° / 77°0.05
99 °
Peoria, Friday, 4 September
Climate normal for this date — 60-year average.
Average high99°
Average low77°
Average precipitation0.05 in
Chance of precipitation17%
Record high110° (2020)
Record low65° (1961)
Sat, 0598° / 77°0.09
98 °
Peoria, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high98°
Average low77°
Average precipitation0.09 in
Chance of precipitation15%
Record high111° (2020)
Record low63° (1992)
Sun, 0698° / 77°0.02
98 °
Peoria, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high98°
Average low77°
Average precipitation0.02 in
Chance of precipitation10%
Record high110° (2020)
Record low64° (1970)
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 Peoria, AZ 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 Peoria, AZ 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.