Monthly outlook for Heilmans Mill, NC: average high 89.6°, average low 70°. That is 1.7° above the climate normal for August. Precipitation is expected on 6 days (about 1.7 inches), against a normal of 7 days and 2.1 inches. The warmest day looks like 12 August (97.8°), the coolest 21 August (64.8°).
89.6°/70°
Average high / low
+1.7°
Above normal
6 / 7
Wet days / normal
1.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
89.1°
86.5°
+1.4°
18 August – 27 August
90.5°
86.3°
+2.3°
28 August – 6 September
at normal
84.8°
—
August records over 66 years
104.5°9 August 2007All-time high
53.6°30 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Concord (7 mi).
Sun, 0990° / 72°0.03
90 °
Heilmans Mill, Sunday, 9 August
Light rain. High 90°, low 72°.
Pressure30.09 inHg
Wind6.5 mph W
Humidity51%
Visibility6.2 mi
Dew point69°
Mon, 1097° / 74°0.02
97 °
Heilmans Mill, Monday, 10 August
Light rain. High 97°, low 74°.
Pressure30.09 inHg
Wind4.6 mph W
Humidity43%
Visibility6.2 mi
Dew point66°
Tue, 1197° / 70°0.05
97 °
Heilmans Mill, Tuesday, 11 August
Light rain. High 97°, low 70°.
Pressure30.03 inHg
Wind2.6 mph NW
Humidity48%
Visibility6.2 mi
Dew point69°
Wed, 1298° / 73°0.08
98 °
Heilmans Mill, Wednesday, 12 August
Light rain. High 98°, low 73°.
Pressure29.91 inHg
Wind8.7 mph NW
Humidity39%
Visibility6.2 mi
Dew point66°
Thu, 1395° / 72°0.01
95 °
Heilmans Mill, Thursday, 13 August
Light rain. High 95°, low 72°.
Pressure29.91 inHg
Wind7.9 mph NW
Humidity37%
Visibility—
Dew point60°
Fri, 1480° / 69°0.03
80 °
Heilmans Mill, Friday, 14 August
Light rain. High 80°, low 69°.
Pressure30.06 inHg
Wind6 mph NE
Humidity60%
Visibility—
Dew point63°
Sat, 1584° / 66°0.08
84 °
Heilmans Mill, Saturday, 15 August
Light rain. High 84°, low 66°.
Pressure30.18 inHg
Wind6.5 mph NE
Humidity50%
Visibility—
Dew point57°
Sun, 1678° / 68°0
78 °
Heilmans Mill, Sunday, 16 August
Overcast. High 78°, low 68°.
Pressure30.18 inHg
Wind3.9 mph S
Humidity57%
Visibility—
Dew point59°
Mon, 1783° / 70°0.5
83 °
Heilmans Mill, Monday, 17 August
Rain. High 83°, low 70°.
Pressure30.09 inHg
Wind11.6 mph S
Humidity83%
Visibility—
Dew point71°
Tue, 1887° / 69°0.81
87 °
Heilmans Mill, Tuesday, 18 August
Heavy rain. High 87°, low 69°.
Pressure29.97 inHg
Wind9.6 mph SW
Humidity56%
Visibility—
Dew point67°
Wed, 1991° / 69°0.02
91 °
Heilmans Mill, Wednesday, 19 August
Light rain. High 91°, low 69°.
Pressure29.88 inHg
Wind6.8 mph NE
Humidity52%
Visibility—
Dew point67°
Thu, 2094° / 73°0
94 °
Heilmans Mill, Thursday, 20 August
Clear. High 94°, low 73°.
Pressure29.74 inHg
Wind12.5 mph NW
Humidity39%
Visibility—
Dew point63°
Fri, 2185° / 65°0
85 °
Heilmans Mill, Friday, 21 August
Overcast. High 85°, low 65°.
Pressure29.94 inHg
Wind8.7 mph N
Humidity38%
Visibility—
Dew point53°
Sat, 2291° / 66°0
91 °
Heilmans Mill, Saturday, 22 August
Partly cloudy. High 91°, low 66°.
Pressure30.03 inHg
Wind6.8 mph W
Humidity43%
Visibility—
Dew point59°
Sun, 2395° / 72°0.04
95 °
Heilmans Mill, Sunday, 23 August
Light rain. High 95°, low 72°.
Pressure30.00 inHg
Wind9.7 mph SW
Humidity45%
Visibility—
Dew point67°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2485° / 69°0.08
85 °
Heilmans Mill, Monday, 24 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.08 in
Chance of precipitation35%
Record high98° (1968)
Record low57° (2024)
Tue, 2585° / 68°0.07
85 °
Heilmans Mill, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.07 in
Chance of precipitation28%
Record high97° (1968)
Record low59° (2024)
Wed, 2685° / 68°0.12
85 °
Heilmans Mill, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.12 in
Chance of precipitation33%
Record high96° (1975)
Record low58° (2013)
Thu, 2787° / 69°0.12
87 °
Heilmans Mill, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high87°
Average low69°
Average precipitation0.12 in
Chance of precipitation35%
Record high97° (1987)
Record low60° (1966)
Fri, 2887° / 69°0.07
87 °
Heilmans Mill, Friday, 28 August
Climate normal for this date — 60-year average.
Average high87°
Average low69°
Average precipitation0.07 in
Chance of precipitation30%
Record high98° (1987)
Record low58° (1969)
Sat, 2987° / 69°0.1
87 °
Heilmans Mill, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high87°
Average low69°
Average precipitation0.1 in
Chance of precipitation28%
Record high97° (1998)
Record low56° (1986)
Sun, 3086° / 69°0.08
86 °
Heilmans Mill, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.08 in
Chance of precipitation35%
Record high96° (2021)
Record low54° (1965)
Mon, 3185° / 68°0.12
85 °
Heilmans Mill, Monday, 31 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.12 in
Chance of precipitation33%
Record high97° (2010)
Record low57° (1976)
Tue, 0185° / 68°0.12
85 °
Heilmans Mill, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.12 in
Chance of precipitation45%
Record high96° (1993)
Record low58° (2025)
Wed, 0285° / 67°0.08
85 °
Heilmans Mill, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.08 in
Chance of precipitation33%
Record high95° (2014)
Record low53° (1967)
Thu, 0385° / 67°0.13
85 °
Heilmans Mill, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.13 in
Chance of precipitation38%
Record high97° (2010)
Record low52° (1967)
Fri, 0484° / 67°0.12
84 °
Heilmans Mill, Friday, 4 September
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.12 in
Chance of precipitation43%
Record high95° (1975)
Record low55° (1967)
Sat, 0582° / 67°0.23
82 °
Heilmans Mill, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0.23 in
Chance of precipitation30%
Record high95° (2007)
Record low55° (1997)
Sun, 0683° / 67°0.15
83 °
Heilmans Mill, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.15 in
Chance of precipitation33%
Record high94° (2023)
Record low57° (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 Heilmans Mill, 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 Heilmans Mill, 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.