Monthly outlook for Shelbyville Mills, TN: average high 94°, average low 73.6°. That is 4.1° above the climate normal for August. Precipitation is expected on 6 days (about 0.8 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 19 August (99.9°), the coolest 9 August (70.1°).
94°/73.6°
Average high / low
+4.1°
Above normal
6 / 6
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
93.8°
86.5°
+4.1°
19 August – 28 August
94.2°
86.5°
+4.3°
29 August – 7 September
at normal
84.5°
—
August records over 66 years
104.5°15 August 2007All-time high
54.5°14 August 2004All-time low
Climate normals and records are computed from the nearest reference point — Shelbyville (3 mi).
Mon, 1091° / 71°0.08
91 °
Shelbyville Mills, Monday, 10 August
Light rain. High 91°, low 71°.
Pressure30.12 inHg
Wind7.9 mph SW
Humidity61%
Visibility6.2 mi
Dew point72°
Tue, 1191° / 72°0.23
91 °
Shelbyville Mills, Tuesday, 11 August
Rain. High 91°, low 72°.
Pressure30.06 inHg
Wind9 mph SW
Humidity63%
Visibility6.2 mi
Dew point73°
Wed, 1293° / 73°0
93 °
Shelbyville Mills, Wednesday, 12 August
Mostly clear. High 93°, low 73°.
Pressure29.94 inHg
Wind11.6 mph W
Humidity56%
Visibility6.2 mi
Dew point72°
Thu, 1393° / 73°0.09
93 °
Shelbyville Mills, Thursday, 13 August
Light rain. High 93°, low 73°.
Pressure30.00 inHg
Wind8.3 mph W
Humidity58%
Visibility6.2 mi
Dew point72°
Fri, 1494° / 73°0.01
94 °
Shelbyville Mills, Friday, 14 August
Light rain. High 94°, low 73°.
Pressure30.06 inHg
Wind8.7 mph SW
Humidity54%
Visibility—
Dew point71°
Sat, 1594° / 77°0
94 °
Shelbyville Mills, Saturday, 15 August
Clear. High 94°, low 77°.
Pressure30.12 inHg
Wind8 mph SW
Humidity44%
Visibility—
Dew point66°
Sun, 1696° / 76°0
96 °
Shelbyville Mills, Sunday, 16 August
Clear. High 96°, low 76°.
Pressure30.06 inHg
Wind9.3 mph W
Humidity41%
Visibility—
Dew point65°
Mon, 1797° / 74°0
97 °
Shelbyville Mills, Monday, 17 August
Mostly clear. High 97°, low 74°.
Pressure30.00 inHg
Wind8.6 mph W
Humidity39%
Visibility—
Dew point64°
Tue, 1899° / 77°0
99 °
Shelbyville Mills, Tuesday, 18 August
Clear. High 99°, low 77°.
Pressure30.00 inHg
Wind7.2 mph SW
Humidity39%
Visibility—
Dew point66°
Wed, 19100° / 78°0
100 °
Shelbyville Mills, Wednesday, 19 August
Clear. High 100°, low 78°.
Pressure30.03 inHg
Wind8 mph SW
Humidity44%
Visibility—
Dew point69°
Thu, 2097° / 76°0
97 °
Shelbyville Mills, Thursday, 20 August
Light rain. High 97°, low 76°.
Pressure29.97 inHg
Wind9.4 mph SW
Humidity48%
Visibility—
Dew point70°
Fri, 2194° / 72°0.07
94 °
Shelbyville Mills, Friday, 21 August
Light rain. High 94°, low 72°.
Pressure29.91 inHg
Wind10 mph SW
Humidity50%
Visibility—
Dew point68°
Sat, 2293° / 74°0.05
93 °
Shelbyville Mills, Saturday, 22 August
Light rain. High 93°, low 74°.
Pressure29.91 inHg
Wind11.8 mph SW
Humidity51%
Visibility—
Dew point68°
Sun, 2392° / 72°0
92 °
Shelbyville Mills, Sunday, 23 August
Overcast. High 92°, low 72°.
Pressure29.97 inHg
Wind7.3 mph SW
Humidity53%
Visibility—
Dew point68°
Mon, 2490° / 71°0
90 °
Shelbyville Mills, Monday, 24 August
Partly cloudy. High 90°, low 71°.
Pressure30.06 inHg
Wind8.3 mph SW
Humidity52%
Visibility—
Dew point66°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2587° / 69°0.09
87 °
Shelbyville Mills, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high87°
Average low69°
Average precipitation0.09 in
Chance of precipitation35%
Record high96° (2023)
Record low59° (2015)
Wed, 2686° / 69°0.16
86 °
Shelbyville Mills, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.16 in
Chance of precipitation37%
Record high94° (1990)
Record low58° (2015)
Thu, 2787° / 69°0.07
87 °
Shelbyville Mills, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high87°
Average low69°
Average precipitation0.07 in
Chance of precipitation28%
Record high97° (1990)
Record low56° (2025)
Fri, 2886° / 69°0.09
86 °
Shelbyville Mills, Friday, 28 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.09 in
Chance of precipitation30%
Record high100° (1990)
Record low56° (1967)
Sat, 2986° / 69°0.09
86 °
Shelbyville Mills, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.09 in
Chance of precipitation38%
Record high96° (1990)
Record low56° (1986)
Sun, 3085° / 69°0.14
85 °
Shelbyville Mills, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.14 in
Chance of precipitation43%
Record high96° (2024)
Record low57° (1992)
Mon, 3185° / 69°0.15
85 °
Shelbyville Mills, Monday, 31 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.15 in
Chance of precipitation33%
Record high94° (1962)
Record low60° (2023)
Tue, 0185° / 69°0.11
85 °
Shelbyville Mills, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.11 in
Chance of precipitation38%
Record high94° (2011)
Record low57° (1967)
Wed, 0285° / 69°0.15
85 °
Shelbyville Mills, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.15 in
Chance of precipitation42%
Record high94° (2011)
Record low56° (1967)
Thu, 0384° / 68°0.14
84 °
Shelbyville Mills, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.14 in
Chance of precipitation42%
Record high97° (2011)
Record low57° (2017)
Fri, 0484° / 68°0.1
84 °
Shelbyville Mills, Friday, 4 September
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.1 in
Chance of precipitation35%
Record high95° (1990)
Record low55° (1974)
Sat, 0584° / 67°0.15
84 °
Shelbyville Mills, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.15 in
Chance of precipitation33%
Record high96° (1999)
Record low54° (1997)
Sun, 0684° / 66°0.09
84 °
Shelbyville Mills, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high84°
Average low66°
Average precipitation0.09 in
Chance of precipitation28%
Record high98° (1990)
Record low54° (2017)
Mon, 0784° / 66°0.06
84 °
Shelbyville Mills, Monday, 7 September
Climate normal for this date — 60-year average.
Average high84°
Average low66°
Average precipitation0.06 in
Chance of precipitation20%
Record high97° (1990)
Record low50° (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 Shelbyville Mills, TN 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 Shelbyville Mills, TN 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.