Monthly outlook for Grigsby, TN: average high 75.5°, average low 56.8°. That is 3.9° above the climate normal for October. Precipitation is expected on 5 days (about 1.2 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 15 October (86°), the coolest 18 October (46.5°).
75.5°/56.8°
Average high / low
+3.9°
Above normal
5 / 4
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
78.8°
69.8°
+5°
18 October – 27 October
70°
65.8°
+2.3°
28 October – 6 November
at normal
63.2°
—
October records over 66 years
94.8°3 October 2019All-time high
27.3°29 October 1976All-time low
Climate normals and records are computed from the nearest reference point — Bulls Gap (6 mi).
Fri, 0978° / 54°0
78 °
Grigsby, Friday, 9 October
Overcast. High 78°, low 54°.
Pressure30.21 inHg
Wind9.3 mph E
Humidity30%
Visibility6.2 mi
Dew point43°
Sat, 1070° / 55°0.54
70 °
Grigsby, Saturday, 10 October
Rain. High 70°, low 55°.
Pressure30.18 inHg
Wind12.3 mph E
Humidity90%
Visibility5.2 mi
Dew point60°
Sun, 1170° / 61°0.22
70 °
Grigsby, Sunday, 11 October
Rain. High 70°, low 61°.
Pressure29.91 inHg
Wind9.4 mph W
Humidity83%
Visibility3.6 mi
Dew point63°
Mon, 1277° / 61°0.1
77 °
Grigsby, Monday, 12 October
Light rain. High 77°, low 61°.
Pressure30.03 inHg
Wind11 mph NW
Humidity68%
Visibility6.2 mi
Dew point60°
Tue, 1379° / 60°0
79 °
Grigsby, Tuesday, 13 October
Clear. High 79°, low 60°.
Pressure29.97 inHg
Wind9.3 mph SW
Humidity54%
Visibility—
Dew point58°
Wed, 1482° / 64°0
82 °
Grigsby, Wednesday, 14 October
Overcast. High 82°, low 64°.
Pressure29.97 inHg
Wind4.7 mph SW
Humidity63%
Visibility—
Dew point64°
Thu, 1586° / 65°0
86 °
Grigsby, Thursday, 15 October
Clear. High 86°, low 65°.
Pressure30.06 inHg
Wind6.5 mph W
Humidity47%
Visibility—
Dew point60°
Fri, 1683° / 64°0
83 °
Grigsby, Friday, 16 October
Clear. High 83°, low 64°.
Pressure30.12 inHg
Wind4 mph NW
Humidity50%
Visibility—
Dew point60°
Sat, 1781° / 55°0.06
81 °
Grigsby, Saturday, 17 October
Light rain. High 81°, low 55°.
Pressure30.12 inHg
Wind15.5 mph N
Humidity47%
Visibility—
Dew point56°
Sun, 1872° / 47°0
72 °
Grigsby, Sunday, 18 October
Partly cloudy. High 72°, low 47°.
Pressure30.27 inHg
Wind11.6 mph NE
Humidity48%
Visibility—
Dew point46°
Mon, 1970° / 54°0
70 °
Grigsby, Monday, 19 October
Overcast. High 70°, low 54°.
Pressure30.33 inHg
Wind6.8 mph NE
Humidity58%
Visibility—
Dew point51°
Tue, 2072° / 51°0
72 °
Grigsby, Tuesday, 20 October
Overcast. High 72°, low 51°.
Pressure30.30 inHg
Wind7 mph NE
Humidity47%
Visibility—
Dew point48°
Wed, 2169° / 52°0
69 °
Grigsby, Wednesday, 21 October
Overcast. High 69°, low 52°.
Pressure30.27 inHg
Wind3.6 mph N
Humidity51%
Visibility—
Dew point47°
Thu, 2274° / 59°0
74 °
Grigsby, Thursday, 22 October
Overcast. High 74°, low 59°.
Pressure30.12 inHg
Wind6.5 mph NW
Humidity47%
Visibility—
Dew point50°
Fri, 2363° / 51°0.33
63 °
Grigsby, Friday, 23 October
Rain. High 63°, low 51°.
Pressure30.00 inHg
Wind10.5 mph NW
Humidity86%
Visibility—
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2466° / 47°0.08
66 °
Grigsby, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high66°
Average low47°
Average precipitation0.08 in
Chance of precipitation27%
Record high79° (2001)
Record low34° (1981)
Sun, 2565° / 47°0.14
65 °
Grigsby, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high65°
Average low47°
Average precipitation0.14 in
Chance of precipitation37%
Record high79° (1963)
Record low33° (1999)
Mon, 2665° / 48°0.08
65 °
Grigsby, Monday, 26 October
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.08 in
Chance of precipitation28%
Record high80° (2010)
Record low29° (2013)
Tue, 2764° / 47°0.15
64 °
Grigsby, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high64°
Average low47°
Average precipitation0.15 in
Chance of precipitation35%
Record high80° (1963)
Record low28° (1962)
Wed, 2864° / 47°0.12
64 °
Grigsby, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high64°
Average low47°
Average precipitation0.12 in
Chance of precipitation35%
Record high81° (1991)
Record low30° (1976)
Thu, 2964° / 46°0.11
64 °
Grigsby, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high64°
Average low46°
Average precipitation0.11 in
Chance of precipitation25%
Record high80° (2023)
Record low27° (1976)
Fri, 3065° / 45°0.11
65 °
Grigsby, Friday, 30 October
Climate normal for this date — 60-year average.
Average high65°
Average low45°
Average precipitation0.11 in
Chance of precipitation27%
Record high79° (2016)
Record low30° (2017)
Sat, 3165° / 46°0.06
65 °
Grigsby, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high65°
Average low46°
Average precipitation0.06 in
Chance of precipitation23%
Record high79° (2016)
Record low34° (1993)
Sun, 0165° / 47°0.08
65 °
Grigsby, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high65°
Average low47°
Average precipitation0.08 in
Chance of precipitation30%
Record high82° (2016)
Record low30° (2019)
Mon, 0264° / 45°0.13
64 °
Grigsby, Monday, 2 November
Climate normal for this date — 60-year average.
Average high64°
Average low45°
Average precipitation0.13 in
Chance of precipitation32%
Record high79° (2004)
Record low28° (2023)
Tue, 0362° / 44°0.07
62 °
Grigsby, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high62°
Average low44°
Average precipitation0.07 in
Chance of precipitation25%
Record high79° (2003)
Record low30° (1996)
Wed, 0461° / 43°0.12
61 °
Grigsby, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high61°
Average low43°
Average precipitation0.12 in
Chance of precipitation35%
Record high78° (2003)
Record low26° (1966)
Thu, 0561° / 43°0.11
61 °
Grigsby, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high61°
Average low43°
Average precipitation0.11 in
Chance of precipitation32%
Record high80° (2024)
Record low25° (1991)
Fri, 0660° / 43°0.06
60 °
Grigsby, Friday, 6 November
Climate normal for this date — 60-year average.
Average high60°
Average low43°
Average precipitation0.06 in
Chance of precipitation33%
Record high80° (2024)
Record low27° (1967)
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 Grigsby, 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 Grigsby, 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.