Monthly outlook for Apex, NC: average high 90.1°, average low 70.7°. That is 2.3° above the climate normal for August. Precipitation is expected on 11 days (about 3.2 inches), against a normal of 7 days and 2.4 inches. The warmest day looks like 11 August (99.9°), the coolest 15 August (64.3°).
90.1°/70.7°
Average high / low
+2.3°
Above normal
11 / 7
Wet days / normal
3.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
91°
86.1°
+2.7°
18 August – 27 August
88.7°
85.5°
+1.8°
28 August – 6 September
at normal
84.6°
—
August records over 66 years
102.9°9 August 2007All-time high
53.8°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Raleigh (15 mi).
Sun, 0993° / 73°0.1
93 °
Apex, Sunday, 9 August
Rain. High 93°, low 73°.
Pressure30.09 inHg
Wind7.7 mph W
Humidity45%
Visibility6.2 mi
Dew point68°
Mon, 1098° / 74°0.02
98 °
Apex, Monday, 10 August
Light rain. High 98°, low 74°.
Pressure30.06 inHg
Wind6.5 mph W
Humidity42%
Visibility6.2 mi
Dew point66°
Tue, 11100° / 74°0.13
100 °
Apex, Tuesday, 11 August
Light rain. High 100°, low 74°.
Pressure30.00 inHg
Wind3.4 mph N
Humidity42%
Visibility6.2 mi
Dew point67°
Wed, 1294° / 73°0
94 °
Apex, Wednesday, 12 August
Partly cloudy. High 94°, low 73°.
Pressure29.88 inHg
Wind10.5 mph NW
Humidity40%
Visibility6.2 mi
Dew point66°
Thu, 1398° / 73°0.13
98 °
Apex, Thursday, 13 August
Light rain. High 98°, low 73°.
Pressure29.83 inHg
Wind9.6 mph W
Humidity32%
Visibility—
Dew point61°
Fri, 1482° / 68°1.08
82 °
Apex, Friday, 14 August
Heavy rain. High 82°, low 68°.
Pressure29.94 inHg
Wind8.2 mph N
Humidity85%
Visibility—
Dew point74°
Sat, 1583° / 64°0.1
83 °
Apex, Saturday, 15 August
Light rain. High 83°, low 64°.
Pressure30.18 inHg
Wind9.2 mph NE
Humidity38%
Visibility—
Dew point51°
Sun, 1683° / 64°0
83 °
Apex, Sunday, 16 August
Partly cloudy. High 83°, low 64°.
Pressure30.27 inHg
Wind5.6 mph SE
Humidity38%
Visibility—
Dew point53°
Mon, 1787° / 67°0
87 °
Apex, Monday, 17 August
Overcast. High 87°, low 67°.
Pressure30.18 inHg
Wind8.6 mph S
Humidity41%
Visibility—
Dew point58°
Tue, 1888° / 68°0.3
88 °
Apex, Tuesday, 18 August
Rain. High 88°, low 68°.
Pressure30.03 inHg
Wind13.7 mph W
Humidity46%
Visibility—
Dew point62°
Wed, 1988° / 70°0.31
88 °
Apex, Wednesday, 19 August
Rain. High 88°, low 70°.
Pressure29.88 inHg
Wind7.8 mph S
Humidity67%
Visibility—
Dew point71°
Thu, 2092° / 72°0.11
92 °
Apex, Thursday, 20 August
Light rain. High 92°, low 72°.
Pressure29.91 inHg
Wind8.7 mph S
Humidity46%
Visibility—
Dew point66°
Fri, 2189° / 73°0.85
89 °
Apex, Friday, 21 August
Rain. High 89°, low 73°.
Pressure29.83 inHg
Wind8.4 mph NW
Humidity73%
Visibility—
Dew point74°
Sat, 2290° / 73°0.06
90 °
Apex, Saturday, 22 August
Light rain. High 90°, low 73°.
Pressure29.80 inHg
Wind7 mph NW
Humidity48%
Visibility—
Dew point66°
Sun, 2384° / 69°0.01
84 °
Apex, Sunday, 23 August
Light rain. High 84°, low 69°.
Pressure29.97 inHg
Wind12.5 mph NE
Humidity49%
Visibility—
Dew point61°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2485° / 69°0.09
85 °
Apex, Monday, 24 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.09 in
Chance of precipitation40%
Record high99° (2002)
Record low57° (2024)
Tue, 2585° / 68°0.05
85 °
Apex, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.05 in
Chance of precipitation23%
Record high99° (1968)
Record low59° (1994)
Wed, 2685° / 68°0.08
85 °
Apex, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.08 in
Chance of precipitation30%
Record high96° (2023)
Record low59° (2013)
Thu, 2785° / 69°0.18
85 °
Apex, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.18 in
Chance of precipitation43%
Record high95° (1987)
Record low60° (1981)
Fri, 2886° / 70°0.12
86 °
Apex, Friday, 28 August
Climate normal for this date — 60-year average.
Average high86°
Average low70°
Average precipitation0.12 in
Chance of precipitation32%
Record high96° (2021)
Record low59° (1969)
Sat, 2986° / 70°0.07
86 °
Apex, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high86°
Average low70°
Average precipitation0.07 in
Chance of precipitation32%
Record high97° (1993)
Record low55° (1986)
Sun, 3085° / 69°0.13
85 °
Apex, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.13 in
Chance of precipitation32%
Record high96° (2021)
Record low54° (1986)
Mon, 3185° / 69°0.15
85 °
Apex, Monday, 31 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.15 in
Chance of precipitation28%
Record high97° (2010)
Record low57° (1976)
Tue, 0184° / 68°0.16
84 °
Apex, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.16 in
Chance of precipitation43%
Record high98° (1993)
Record low58° (2025)
Wed, 0284° / 67°0.15
84 °
Apex, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.15 in
Chance of precipitation40%
Record high97° (2014)
Record low56° (1967)
Thu, 0385° / 68°0.13
85 °
Apex, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.13 in
Chance of precipitation35%
Record high98° (2010)
Record low52° (1967)
Fri, 0484° / 68°0.14
84 °
Apex, Friday, 4 September
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.14 in
Chance of precipitation33%
Record high93° (1993)
Record low56° (2021)
Sat, 0583° / 67°0.22
83 °
Apex, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.22 in
Chance of precipitation37%
Record high94° (1983)
Record low54° (1994)
Sun, 0684° / 68°0.25
84 °
Apex, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.25 in
Chance of precipitation38%
Record high96° (1983)
Record low56° (1984)
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 Apex, NC 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 Apex, NC 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.