Monthly outlook for Harbison Crossroads, TN: average high 86°, average low 67.5°. That is 0.8° above the climate normal for August. Precipitation is expected on 11 days (about 4.7 inches), against a normal of 7 days and 1.9 inches. The warmest day looks like 12 August (94.2°), the coolest 21 August (59.6°).
86°/67.5°
Average high / low
+0.8°
Above normal
11 / 7
Wet days / normal
4.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
86.2°
84.6°
+0.9°
18 August – 27 August
85.8°
84.7°
+0.6°
28 August – 6 September
at normal
83.6°
—
August records over 66 years
100.8°16 August 2007All-time high
53.8°7 August 2004All-time low
Climate normals and records are computed from the nearest reference point — Knoxville (12 mi).
Sun, 0985° / 70°0.11
85 °
Harbison Crossroads, Sunday, 9 August
Rain. High 85°, low 70°.
Pressure30.12 inHg
Wind4.2 mph SW
Humidity65%
Visibility6.2 mi
Dew point70°
Mon, 1087° / 70°0.18
87 °
Harbison Crossroads, Monday, 10 August
Rain. High 87°, low 70°.
Pressure30.12 inHg
Wind4.5 mph SW
Humidity77%
Visibility6.2 mi
Dew point73°
Tue, 1192° / 68°0.02
92 °
Harbison Crossroads, Tuesday, 11 August
Light rain. High 92°, low 68°.
Pressure30.06 inHg
Wind7.7 mph SW
Humidity55%
Visibility6.2 mi
Dew point69°
Wed, 1294° / 69°0.58
94 °
Harbison Crossroads, Wednesday, 12 August
Heavy rain. High 94°, low 69°.
Pressure29.94 inHg
Wind9.7 mph SW
Humidity57%
Visibility6.2 mi
Dew point70°
Thu, 1386° / 67°0.41
86 °
Harbison Crossroads, Thursday, 13 August
Rain. High 86°, low 67°.
Pressure29.97 inHg
Wind5.9 mph S
Humidity52%
Visibility—
Dew point64°
Fri, 1477° / 70°0.83
77 °
Harbison Crossroads, Friday, 14 August
Rain. High 77°, low 70°.
Pressure30.09 inHg
Wind6.2 mph SW
Humidity95%
Visibility—
Dew point71°
Sat, 1582° / 69°0.31
82 °
Harbison Crossroads, Saturday, 15 August
Rain. High 82°, low 69°.
Pressure30.21 inHg
Wind4.9 mph E
Humidity75%
Visibility—
Dew point66°
Sun, 1683° / 67°0.15
83 °
Harbison Crossroads, Sunday, 16 August
Rain. High 83°, low 67°.
Pressure30.12 inHg
Wind7.4 mph SW
Humidity66%
Visibility—
Dew point68°
Mon, 1791° / 69°1.43
91 °
Harbison Crossroads, Monday, 17 August
Heavy rain. High 91°, low 69°.
Pressure30.00 inHg
Wind5.9 mph SW
Humidity54%
Visibility—
Dew point69°
Tue, 1885° / 67°0.33
85 °
Harbison Crossroads, Tuesday, 18 August
Rain. High 85°, low 67°.
Pressure30.00 inHg
Wind10.4 mph W
Humidity67%
Visibility—
Dew point70°
Wed, 1989° / 68°0.24
89 °
Harbison Crossroads, Wednesday, 19 August
Rain. High 89°, low 68°.
Pressure29.91 inHg
Wind3.7 mph SW
Humidity53%
Visibility—
Dew point67°
Thu, 2083° / 65°0
83 °
Harbison Crossroads, Thursday, 20 August
Overcast. High 83°, low 65°.
Pressure29.88 inHg
Wind8.3 mph N
Humidity57%
Visibility—
Dew point64°
Fri, 2182° / 60°0
82 °
Harbison Crossroads, Friday, 21 August
Overcast. High 82°, low 60°.
Pressure30.00 inHg
Wind4.6 mph NE
Humidity45%
Visibility—
Dew point55°
Sat, 2282° / 63°0.12
82 °
Harbison Crossroads, Saturday, 22 August
Light rain. High 82°, low 63°.
Pressure30.03 inHg
Wind8.5 mph SW
Humidity68%
Visibility—
Dew point65°
Sun, 2393° / 68°0
93 °
Harbison Crossroads, Sunday, 23 August
Overcast. High 93°, low 68°.
Pressure30.03 inHg
Wind8.7 mph W
Humidity46%
Visibility—
Dew point64°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2485° / 67°0.09
85 °
Harbison Crossroads, Monday, 24 August
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.09 in
Chance of precipitation28%
Record high97° (2007)
Record low55° (1997)
Tue, 2585° / 67°0.07
85 °
Harbison Crossroads, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.07 in
Chance of precipitation30%
Record high98° (2023)
Record low56° (2015)
Wed, 2685° / 67°0.12
85 °
Harbison Crossroads, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.12 in
Chance of precipitation30%
Record high95° (2016)
Record low56° (1966)
Thu, 2785° / 67°0.09
85 °
Harbison Crossroads, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.09 in
Chance of precipitation28%
Record high94° (2016)
Record low58° (2025)
Fri, 2885° / 67°0.07
85 °
Harbison Crossroads, Friday, 28 August
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.07 in
Chance of precipitation27%
Record high95° (1990)
Record low56° (1968)
Sat, 2985° / 67°0.06
85 °
Harbison Crossroads, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.06 in
Chance of precipitation23%
Record high95° (2024)
Record low54° (1986)
Sun, 3084° / 67°0.08
84 °
Harbison Crossroads, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.08 in
Chance of precipitation38%
Record high96° (2024)
Record low54° (1965)
Mon, 3184° / 67°0.11
84 °
Harbison Crossroads, Monday, 31 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.11 in
Chance of precipitation38%
Record high92° (2019)
Record low56° (1968)
Tue, 0183° / 67°0.14
83 °
Harbison Crossroads, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.14 in
Chance of precipitation42%
Record high93° (1993)
Record low57° (1967)
Wed, 0284° / 66°0.11
84 °
Harbison Crossroads, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high84°
Average low66°
Average precipitation0.11 in
Chance of precipitation33%
Record high95° (2011)
Record low54° (1967)
Thu, 0383° / 66°0.12
83 °
Harbison Crossroads, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.12 in
Chance of precipitation45%
Record high95° (2011)
Record low54° (1967)
Fri, 0483° / 65°0.09
83 °
Harbison Crossroads, Friday, 4 September
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.09 in
Chance of precipitation37%
Record high97° (2019)
Record low56° (1967)
Sat, 0582° / 65°0.15
82 °
Harbison Crossroads, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.15 in
Chance of precipitation28%
Record high95° (1975)
Record low52° (1997)
Sun, 0682° / 65°0.09
82 °
Harbison Crossroads, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.09 in
Chance of precipitation35%
Record high93° (1990)
Record low52° (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 Harbison Crossroads, 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 Harbison Crossroads, 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.