Monthly outlook for Sweetwater Ranch, AZ: average high 102.4°, average low 87.7°. That is 2.5° above the climate normal for August. Precipitation is expected on 5 days (about 1.1 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 9 August (112.5°), the coolest 19 August (81°).
102.4°/87.7°
Average high / low
+2.5°
Above normal
5 / 3
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
102.8°
98.2°
+2.5°
19 August – 28 August
101.7°
97.8°
+2.2°
29 August – 7 September
at normal
97.3°
—
August records over 66 years
113.2°7 August 2025All-time high
60.1°21 August 1979All-time low
Climate normals and records are computed from the nearest reference point — Scottsdale (6 mi).
Mon, 10109° / 86°0.02
109 °
Sweetwater Ranch, Monday, 10 August
Light rain. High 109°, low 86°.
Pressure29.85 inHg
Wind12 mph W
Humidity26%
Visibility6.2 mi
Dew point60°
Tue, 11103° / 84°0.05
103 °
Sweetwater Ranch, Tuesday, 11 August
Light rain. High 103°, low 84°.
Pressure29.88 inHg
Wind8.7 mph W
Humidity31%
Visibility6.2 mi
Dew point61°
Wed, 1294° / 87°0.16
94 °
Sweetwater Ranch, Wednesday, 12 August
Light rain. High 94°, low 87°.
Pressure29.85 inHg
Wind3.7 mph W
Humidity36%
Visibility6.2 mi
Dew point60°
Thu, 1396° / 82°0.31
96 °
Sweetwater Ranch, Thursday, 13 August
Rain. High 96°, low 82°.
Pressure29.85 inHg
Wind5.9 mph E
Humidity41%
Visibility—
Dew point62°
Fri, 14100° / 90°0
100 °
Sweetwater Ranch, Friday, 14 August
Overcast. High 100°, low 90°.
Pressure29.88 inHg
Wind7.3 mph NW
Humidity25%
Visibility—
Dew point53°
Sat, 15103° / 90°0
103 °
Sweetwater Ranch, Saturday, 15 August
Mostly clear. High 103°, low 90°.
Pressure29.91 inHg
Wind14.2 mph W
Humidity21%
Visibility—
Dew point50°
Sun, 16102° / 90°0
102 °
Sweetwater Ranch, Sunday, 16 August
Clear. High 102°, low 90°.
Pressure30.00 inHg
Wind10.8 mph W
Humidity20%
Visibility—
Dew point48°
Mon, 17104° / 92°0
104 °
Sweetwater Ranch, Monday, 17 August
Overcast. High 104°, low 92°.
Pressure29.94 inHg
Wind8.1 mph W
Humidity23%
Visibility—
Dew point53°
Tue, 18104° / 91°0.01
104 °
Sweetwater Ranch, Tuesday, 18 August
Light rain. High 104°, low 91°.
Pressure29.85 inHg
Wind9.2 mph SE
Humidity28%
Visibility—
Dew point58°
Wed, 19102° / 81°0.18
102 °
Sweetwater Ranch, Wednesday, 19 August
Light rain. High 102°, low 81°.
Pressure29.85 inHg
Wind35.3 mph SW
Humidity29%
Visibility—
Dew point59°
Thu, 20100° / 82°0.33
100 °
Sweetwater Ranch, Thursday, 20 August
Rain. High 100°, low 82°.
Pressure29.91 inHg
Wind8.9 mph E
Humidity36%
Visibility—
Dew point61°
Fri, 21100° / 84°0
100 °
Sweetwater Ranch, Friday, 21 August
Partly cloudy. High 100°, low 84°.
Pressure29.88 inHg
Wind8.5 mph W
Humidity32%
Visibility—
Dew point57°
Sat, 22103° / 90°0
103 °
Sweetwater Ranch, Saturday, 22 August
Clear. High 103°, low 90°.
Pressure29.85 inHg
Wind8.4 mph W
Humidity26%
Visibility—
Dew point55°
Sun, 23105° / 93°0
105 °
Sweetwater Ranch, Sunday, 23 August
Partly cloudy. High 105°, low 93°.
Pressure29.83 inHg
Wind12.9 mph W
Humidity18%
Visibility—
Dew point48°
Mon, 2499° / 91°0.02
99 °
Sweetwater Ranch, Monday, 24 August
Light rain. High 99°, low 91°.
Pressure29.83 inHg
Wind7.4 mph SE
Humidity27%
Visibility—
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2598° / 76°0.03
98 °
Sweetwater Ranch, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high98°
Average low76°
Average precipitation0.03 in
Chance of precipitation25%
Record high108° (2011)
Record low66° (2002)
Wed, 2698° / 76°0.03
98 °
Sweetwater Ranch, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high98°
Average low76°
Average precipitation0.03 in
Chance of precipitation20%
Record high108° (2001)
Record low66° (1960)
Thu, 2798° / 76°0.04
98 °
Sweetwater Ranch, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high98°
Average low76°
Average precipitation0.04 in
Chance of precipitation20%
Record high108° (2011)
Record low66° (1992)
Fri, 2899° / 76°0.04
99 °
Sweetwater Ranch, Friday, 28 August
Climate normal for this date — 60-year average.
Average high99°
Average low76°
Average precipitation0.04 in
Chance of precipitation15%
Record high110° (2023)
Record low66° (1978)
Sat, 2999° / 76°0.04
99 °
Sweetwater Ranch, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high99°
Average low76°
Average precipitation0.04 in
Chance of precipitation22%
Record high109° (2023)
Record low66° (1960)
Sun, 3098° / 76°0.02
98 °
Sweetwater Ranch, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high98°
Average low76°
Average precipitation0.02 in
Chance of precipitation17%
Record high107° (2022)
Record low66° (1992)
Mon, 3198° / 76°0.03
98 °
Sweetwater Ranch, Monday, 31 August
Climate normal for this date — 60-year average.
Average high98°
Average low76°
Average precipitation0.03 in
Chance of precipitation18%
Record high107° (2011)
Record low64° (1962)
Tue, 0197° / 76°0.03
97 °
Sweetwater Ranch, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high97°
Average low76°
Average precipitation0.03 in
Chance of precipitation18%
Record high106° (1982)
Record low64° (1992)
Wed, 0297° / 75°0.04
97 °
Sweetwater Ranch, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high97°
Average low75°
Average precipitation0.04 in
Chance of precipitation22%
Record high106° (1982)
Record low60° (1992)
Thu, 0398° / 75°0.01
98 °
Sweetwater Ranch, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high98°
Average low75°
Average precipitation0.01 in
Chance of precipitation12%
Record high106° (2022)
Record low63° (1961)
Fri, 0497° / 75°0.06
97 °
Sweetwater Ranch, Friday, 4 September
Climate normal for this date — 60-year average.
Average high97°
Average low75°
Average precipitation0.06 in
Chance of precipitation13%
Record high109° (2020)
Record low60° (1961)
Sat, 0597° / 75°0.1
97 °
Sweetwater Ranch, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high97°
Average low75°
Average precipitation0.1 in
Chance of precipitation22%
Record high110° (2020)
Record low59° (1992)
Sun, 0696° / 75°0.05
96 °
Sweetwater Ranch, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high96°
Average low75°
Average precipitation0.05 in
Chance of precipitation20%
Record high107° (2020)
Record low60° (1992)
Mon, 0796° / 74°0.03
96 °
Sweetwater Ranch, Monday, 7 September
Climate normal for this date — 60-year average.
Average high96°
Average low74°
Average precipitation0.03 in
Chance of precipitation13%
Record high106° (1979)
Record low63° (1992)
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 Sweetwater Ranch, 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 Sweetwater Ranch, 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.