Monthly outlook for Fort Whipple, AZ: average high 86.8°, average low 66.4°. That is 0.6° above the climate normal for August. Precipitation is expected on 9 days (about 2.9 inches), against a normal of 8 days and 1.9 inches. The warmest day looks like 9 August (101.2°), the coolest 16 August (59.6°).
86.8°/66.4°
Average high / low
+0.6°
Above normal
9 / 8
Wet days / normal
2.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
84.1°
86°
-1°
19 August – 28 August
91.2°
84.9°
+3.5°
29 August – 7 September
at normal
84.4°
—
August records over 66 years
99.9°16 August 2020All-time high
46°23 August 1968All-time low
Climate normals and records are computed from the nearest reference point — Prescott Valley (8 mi).
Mon, 1096° / 70°1.5
96 °
Fort Whipple, Monday, 10 August
Heavy rain. High 96°, low 70°.
Pressure29.94 inHg
Wind5.1 mph NW
Humidity29%
Visibility6.2 mi
Dew point52°
Tue, 1185° / 64°0.09
85 °
Fort Whipple, Tuesday, 11 August
Light rain. High 85°, low 64°.
Pressure30.00 inHg
Wind9.1 mph W
Humidity40%
Visibility6.2 mi
Dew point56°
Wed, 1281° / 65°0.1
81 °
Fort Whipple, Wednesday, 12 August
Light rain. High 81°, low 65°.
Pressure29.91 inHg
Wind8.3 mph SW
Humidity47%
Visibility6.2 mi
Dew point56°
Thu, 1377° / 63°0.35
77 °
Fort Whipple, Thursday, 13 August
Rain. High 77°, low 63°.
Pressure29.91 inHg
Wind10.2 mph SW
Humidity52%
Visibility3.7 mi
Dew point57°
Fri, 1476° / 65°0.2
76 °
Fort Whipple, Friday, 14 August
Light rain. High 76°, low 65°.
Pressure30.00 inHg
Wind9.1 mph S
Humidity54%
Visibility—
Dew point55°
Sat, 1578° / 66°0
78 °
Fort Whipple, Saturday, 15 August
Overcast. High 78°, low 66°.
Pressure30.06 inHg
Wind17.5 mph S
Humidity42%
Visibility—
Dew point50°
Sun, 1677° / 60°0.05
77 °
Fort Whipple, Sunday, 16 August
Light rain. High 77°, low 60°.
Pressure30.09 inHg
Wind12.9 mph SW
Humidity41%
Visibility—
Dew point47°
Mon, 1783° / 63°0
83 °
Fort Whipple, Monday, 17 August
Clear. High 83°, low 63°.
Pressure30.00 inHg
Wind9.3 mph SW
Humidity32%
Visibility—
Dew point44°
Tue, 1887° / 67°0
87 °
Fort Whipple, Tuesday, 18 August
Clear. High 87°, low 67°.
Pressure29.97 inHg
Wind11.3 mph W
Humidity26%
Visibility—
Dew point43°
Wed, 1990° / 70°0
90 °
Fort Whipple, Wednesday, 19 August
Clear. High 90°, low 70°.
Pressure30.00 inHg
Wind10.3 mph W
Humidity23%
Visibility—
Dew point41°
Thu, 2091° / 69°0.02
91 °
Fort Whipple, Thursday, 20 August
Light rain. High 91°, low 69°.
Pressure30.00 inHg
Wind13.9 mph S
Humidity29%
Visibility—
Dew point48°
Fri, 2191° / 65°0.16
91 °
Fort Whipple, Friday, 21 August
Rain. High 91°, low 65°.
Pressure30.03 inHg
Wind12 mph W
Humidity39%
Visibility—
Dew point55°
Sat, 2293° / 66°0
93 °
Fort Whipple, Saturday, 22 August
Partly cloudy. High 93°, low 66°.
Pressure29.97 inHg
Wind17.8 mph W
Humidity34%
Visibility—
Dew point50°
Sun, 2392° / 67°0.32
92 °
Fort Whipple, Sunday, 23 August
Rain. High 92°, low 67°.
Pressure29.97 inHg
Wind13.1 mph SW
Humidity32%
Visibility—
Dew point52°
Mon, 2491° / 68°0.11
91 °
Fort Whipple, Monday, 24 August
Light rain. High 91°, low 68°.
Pressure30.00 inHg
Wind5.9 mph NE
Humidity34%
Visibility—
Dew point51°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2584° / 64°0.15
84 °
Fort Whipple, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high84°
Average low64°
Average precipitation0.15 in
Chance of precipitation52%
Record high94° (2011)
Record low54° (1990)
Wed, 2685° / 63°0.13
85 °
Fort Whipple, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high85°
Average low63°
Average precipitation0.13 in
Chance of precipitation48%
Record high96° (2011)
Record low56° (1990)
Thu, 2785° / 64°0.12
85 °
Fort Whipple, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low64°
Average precipitation0.12 in
Chance of precipitation45%
Record high97° (2011)
Record low55° (1972)
Fri, 2886° / 64°0.09
86 °
Fort Whipple, Friday, 28 August
Climate normal for this date — 60-year average.
Average high86°
Average low64°
Average precipitation0.09 in
Chance of precipitation32%
Record high95° (2011)
Record low57° (1964)
Sat, 2986° / 64°0.09
86 °
Fort Whipple, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high86°
Average low64°
Average precipitation0.09 in
Chance of precipitation43%
Record high95° (2011)
Record low57° (1979)
Sun, 3086° / 64°0.11
86 °
Fort Whipple, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high86°
Average low64°
Average precipitation0.11 in
Chance of precipitation43%
Record high95° (2011)
Record low53° (2010)
Mon, 3185° / 64°0.1
85 °
Fort Whipple, Monday, 31 August
Climate normal for this date — 60-year average.
Average high85°
Average low64°
Average precipitation0.1 in
Chance of precipitation47%
Record high95° (2011)
Record low54° (1964)
Tue, 0184° / 63°0.09
84 °
Fort Whipple, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high84°
Average low63°
Average precipitation0.09 in
Chance of precipitation43%
Record high94° (2011)
Record low54° (1964)
Wed, 0284° / 63°0.1
84 °
Fort Whipple, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high84°
Average low63°
Average precipitation0.1 in
Chance of precipitation42%
Record high91° (2002)
Record low52° (2000)
Thu, 0385° / 63°0.06
85 °
Fort Whipple, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high85°
Average low63°
Average precipitation0.06 in
Chance of precipitation33%
Record high93° (2020)
Record low47° (1961)
Fri, 0484° / 63°0.09
84 °
Fort Whipple, Friday, 4 September
Climate normal for this date — 60-year average.
Average high84°
Average low63°
Average precipitation0.09 in
Chance of precipitation43%
Record high96° (2020)
Record low47° (1961)
Sat, 0583° / 62°0.14
83 °
Fort Whipple, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high83°
Average low62°
Average precipitation0.14 in
Chance of precipitation35%
Record high95° (2020)
Record low50° (1985)
Sun, 0683° / 62°0.11
83 °
Fort Whipple, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high83°
Average low62°
Average precipitation0.11 in
Chance of precipitation38%
Record high98° (2020)
Record low49° (1970)
Mon, 0783° / 62°0.1
83 °
Fort Whipple, Monday, 7 September
Climate normal for this date — 60-year average.
Average high83°
Average low62°
Average precipitation0.1 in
Chance of precipitation37%
Record high98° (2020)
Record low50° (1985)
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 Fort Whipple, 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 Fort Whipple, 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.