Monthly outlook for Siler City, NC: average high 93.1°, average low 69.7°. That is 4.3° above the climate normal for August. Precipitation is expected on 5 days (about 1.4 inches), against a normal of 7 days and 2.1 inches. The warmest day looks like 22 August (101.9°), the coolest 15 August (61.8°).
93.1°/69.7°
Average high / low
+4.3°
Above normal
5 / 7
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
90.4°
85.5°
+2.8°
19 August – 28 August
97.5°
85°
+7°
29 August – 7 September
at normal
83.6°
—
August records over 66 years
102.9°18 August 1988All-time high
53.4°30 August 1986All-time low
Mon, 1093° / 73°0.01
93 °
Siler City, Monday, 10 August
Light rain. High 93°, low 73°.
Pressure30.06 inHg
Wind7.9 mph W
Humidity45%
Visibility6.2 mi
Dew point67°
Tue, 1196° / 71°0.03
96 °
Siler City, Tuesday, 11 August
Light rain. High 96°, low 71°.
Pressure29.97 inHg
Wind7 mph W
Humidity42%
Visibility6.2 mi
Dew point66°
Wed, 1299° / 69°0.07
99 °
Siler City, Wednesday, 12 August
Light rain. High 99°, low 69°.
Pressure29.91 inHg
Wind7.3 mph W
Humidity41%
Visibility6.2 mi
Dew point66°
Thu, 1392° / 69°0.21
92 °
Siler City, Thursday, 13 August
Rain. High 92°, low 69°.
Pressure29.88 inHg
Wind6.5 mph NW
Humidity42%
Visibility—
Dew point63°
Fri, 1493° / 62°0.78
93 °
Siler City, Friday, 14 August
Heavy rain. High 93°, low 62°.
Pressure30.00 inHg
Wind15.3 mph NE
Humidity38%
Visibility—
Dew point61°
Sat, 1585° / 62°0
85 °
Siler City, Saturday, 15 August
Mostly clear. High 85°, low 62°.
Pressure30.15 inHg
Wind6.3 mph NE
Humidity44%
Visibility—
Dew point58°
Sun, 1683° / 64°0
83 °
Siler City, Sunday, 16 August
Overcast. High 83°, low 64°.
Pressure30.15 inHg
Wind5.2 mph S
Humidity53%
Visibility—
Dew point61°
Mon, 1786° / 67°0.23
86 °
Siler City, Monday, 17 August
Light rain. High 86°, low 67°.
Pressure29.97 inHg
Wind7 mph SW
Humidity90%
Visibility—
Dew point73°
Tue, 1884° / 70°0.05
84 °
Siler City, Tuesday, 18 August
Light rain. High 84°, low 70°.
Pressure29.97 inHg
Wind8.7 mph N
Humidity61%
Visibility—
Dew point67°
Wed, 1991° / 68°0
91 °
Siler City, Wednesday, 19 August
Clear. High 91°, low 68°.
Pressure30.03 inHg
Wind6.6 mph NE
Humidity37%
Visibility—
Dew point58°
Thu, 2094° / 69°0
94 °
Siler City, Thursday, 20 August
Clear. High 94°, low 69°.
Pressure30.00 inHg
Wind5.1 mph S
Humidity34%
Visibility—
Dew point59°
Fri, 2199° / 72°0.01
99 °
Siler City, Friday, 21 August
Light rain. High 99°, low 72°.
Pressure29.91 inHg
Wind6.2 mph W
Humidity34%
Visibility—
Dew point63°
Sat, 22102° / 75°0.01
102 °
Siler City, Saturday, 22 August
Light rain. High 102°, low 75°.
Pressure29.85 inHg
Wind9.4 mph NE
Humidity35%
Visibility—
Dew point66°
Sun, 2399° / 76°0
99 °
Siler City, Sunday, 23 August
Overcast. High 99°, low 76°.
Pressure29.94 inHg
Wind6 mph S
Humidity40%
Visibility—
Dew point67°
Mon, 24100° / 77°0
100 °
Siler City, Monday, 24 August
Partly cloudy. High 100°, low 77°.
Pressure30.00 inHg
Wind10.4 mph S
Humidity37%
Visibility—
Dew point66°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2585° / 67°0.05
85 °
Siler City, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.05 in
Chance of precipitation23%
Record high96° (1968)
Record low58° (2024)
Wed, 2684° / 68°0.08
84 °
Siler City, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.08 in
Chance of precipitation28%
Record high96° (2023)
Record low59° (2013)
Thu, 2785° / 69°0.16
85 °
Siler City, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.16 in
Chance of precipitation43%
Record high94° (2021)
Record low60° (1981)
Fri, 2885° / 69°0.1
85 °
Siler City, Friday, 28 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.1 in
Chance of precipitation30%
Record high95° (2021)
Record low58° (1969)
Sat, 2985° / 69°0.06
85 °
Siler City, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.06 in
Chance of precipitation27%
Record high97° (1998)
Record low55° (1986)
Sun, 3085° / 68°0.13
85 °
Siler City, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.13 in
Chance of precipitation30%
Record high96° (2021)
Record low53° (1986)
Mon, 3184° / 68°0.14
84 °
Siler City, Monday, 31 August
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.14 in
Chance of precipitation32%
Record high95° (2010)
Record low57° (1976)
Tue, 0184° / 67°0.15
84 °
Siler City, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.15 in
Chance of precipitation45%
Record high96° (1993)
Record low57° (2025)
Wed, 0283° / 67°0.14
83 °
Siler City, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.14 in
Chance of precipitation37%
Record high93° (1980)
Record low54° (1967)
Thu, 0384° / 67°0.15
84 °
Siler City, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.15 in
Chance of precipitation42%
Record high96° (2010)
Record low52° (1967)
Fri, 0483° / 67°0.14
83 °
Siler City, Friday, 4 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.14 in
Chance of precipitation38%
Record high93° (2023)
Record low56° (1967)
Sat, 0582° / 67°0.23
82 °
Siler City, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0.23 in
Chance of precipitation35%
Record high95° (2023)
Record low54° (1997)
Sun, 0683° / 67°0.25
83 °
Siler City, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.25 in
Chance of precipitation35%
Record high95° (2023)
Record low56° (1984)
Mon, 0783° / 66°0.1
83 °
Siler City, Monday, 7 September
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.1 in
Chance of precipitation25%
Record high95° (1990)
Record low53° (2017)
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 Siler City, 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 Siler City, 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.