Monthly outlook for Mount Joy, TN: average high 71.1°, average low 54.4°. That is 1.6° above the climate normal for October. Precipitation is expected on 4 days (about 1.9 inches), against a normal of 4 days and 2.0 inches. The warmest day looks like 15 October (89.5°), the coolest 26 October (40.9°).
71.1°/54.4°
Average high / low
+1.6°
Above normal
4 / 4
Wet days / normal
1.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
75.2°
69.3°
+3.3°
23 October – 1 November
64.3°
66.3°
-1.1°
2 November – 11 November
at normal
61.7°
—
October records over 66 years
94.3°3 October 2019All-time high
31.1°29 October 1976All-time low
Climate normals and records are computed from the nearest reference point — Ethridge (14 mi).
Wed, 1487° / 63°0.16
87 °
Mount Joy, Wednesday, 14 October
Rain. High 87°, low 63°.
Pressure30.06 inHg
Wind6.4 mph W
Humidity59%
Visibility6.2 mi
Dew point70°
Thu, 1589° / 69°0.01
89 °
Mount Joy, Thursday, 15 October
Light rain. High 89°, low 69°.
Pressure30.09 inHg
Wind7.1 mph SW
Humidity34%
Visibility6.2 mi
Dew point56°
Fri, 1672° / 54°0
72 °
Mount Joy, Friday, 16 October
Light rain. High 72°, low 54°.
Pressure30.15 inHg
Wind14.4 mph NW
Humidity70%
Visibility6.2 mi
Dew point55°
Sat, 1763° / 48°0
63 °
Mount Joy, Saturday, 17 October
Clear. High 63°, low 48°.
Pressure30.42 inHg
Wind10.9 mph NE
Humidity35%
Visibility—
Dew point32°
Sun, 1869° / 46°0
69 °
Mount Joy, Sunday, 18 October
Clear. High 69°, low 46°.
Pressure30.36 inHg
Wind11.6 mph SE
Humidity34%
Visibility—
Dew point36°
Mon, 1974° / 51°0
74 °
Mount Joy, Monday, 19 October
Overcast. High 74°, low 51°.
Pressure30.27 inHg
Wind11.8 mph SE
Humidity50%
Visibility—
Dew point50°
Tue, 2064° / 59°0.71
64 °
Mount Joy, Tuesday, 20 October
Rain. High 64°, low 59°.
Pressure30.21 inHg
Wind8.5 mph SE
Humidity99%
Visibility—
Dew point59°
Wed, 2173° / 60°0
73 °
Mount Joy, Wednesday, 21 October
Overcast. High 73°, low 60°.
Pressure30.18 inHg
Wind6.2 mph SE
Humidity75%
Visibility—
Dew point58°
Thu, 2276° / 60°0
76 °
Mount Joy, Thursday, 22 October
Partly cloudy. High 76°, low 60°.
Pressure30.18 inHg
Wind15.1 mph SE
Humidity45%
Visibility—
Dew point51°
Fri, 2376° / 62°0
76 °
Mount Joy, Friday, 23 October
Overcast. High 76°, low 62°.
Pressure30.18 inHg
Wind16.6 mph S
Humidity59%
Visibility—
Dew point59°
Sat, 2468° / 56°0.21
68 °
Mount Joy, Saturday, 24 October
Light rain. High 68°, low 56°.
Pressure30.21 inHg
Wind9.3 mph NE
Humidity87%
Visibility—
Dew point63°
Sun, 2556° / 49°0.85
56 °
Mount Joy, Sunday, 25 October
Rain. High 56°, low 49°.
Pressure30.18 inHg
Wind12 mph N
Humidity97%
Visibility—
Dew point51°
Mon, 2658° / 41°0
58 °
Mount Joy, Monday, 26 October
Clear. High 58°, low 41°.
Pressure30.09 inHg
Wind12.1 mph N
Humidity50%
Visibility—
Dew point38°
Tue, 2762° / 42°0
62 °
Mount Joy, Tuesday, 27 October
Partly cloudy. High 62°, low 42°.
Pressure29.85 inHg
Wind11.2 mph W
Humidity51%
Visibility—
Dew point41°
Wed, 2864° / 48°0
64 °
Mount Joy, Wednesday, 28 October
Clear. High 64°, low 48°.
Pressure29.85 inHg
Wind9.6 mph NW
Humidity47%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2966° / 49°0.09
66 °
Mount Joy, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high66°
Average low49°
Average precipitation0.09 in
Chance of precipitation25%
Record high82° (2016)
Record low31° (1976)
Fri, 3067° / 49°0.09
67 °
Mount Joy, Friday, 30 October
Climate normal for this date — 60-year average.
Average high67°
Average low49°
Average precipitation0.09 in
Chance of precipitation23%
Record high82° (2016)
Record low34° (1993)
Sat, 3167° / 51°0.12
67 °
Mount Joy, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high67°
Average low51°
Average precipitation0.12 in
Chance of precipitation32%
Record high83° (2016)
Record low32° (2023)
Sun, 0166° / 49°0.17
66 °
Mount Joy, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high66°
Average low49°
Average precipitation0.17 in
Chance of precipitation33%
Record high83° (2016)
Record low28° (1993)
Mon, 0264° / 48°0.09
64 °
Mount Joy, Monday, 2 November
Climate normal for this date — 60-year average.
Average high64°
Average low48°
Average precipitation0.09 in
Chance of precipitation27%
Record high80° (2016)
Record low30° (2019)
Tue, 0363° / 47°0.09
63 °
Mount Joy, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high63°
Average low47°
Average precipitation0.09 in
Chance of precipitation25%
Record high81° (2016)
Record low22° (1966)
Wed, 0462° / 46°0.09
62 °
Mount Joy, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high62°
Average low46°
Average precipitation0.09 in
Chance of precipitation32%
Record high76° (1987)
Record low22° (1966)
Thu, 0561° / 46°0.15
61 °
Mount Joy, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high61°
Average low46°
Average precipitation0.15 in
Chance of precipitation32%
Record high75° (2015)
Record low21° (1991)
Fri, 0662° / 45°0.11
62 °
Mount Joy, Friday, 6 November
Climate normal for this date — 60-year average.
Average high62°
Average low45°
Average precipitation0.11 in
Chance of precipitation37%
Record high77° (2024)
Record low27° (1967)
Sat, 0762° / 46°0.17
62 °
Mount Joy, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high62°
Average low46°
Average precipitation0.17 in
Chance of precipitation35%
Record high77° (2005)
Record low27° (1993)
Sun, 0862° / 46°0.04
62 °
Mount Joy, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high62°
Average low46°
Average precipitation0.04 in
Chance of precipitation13%
Record high79° (2005)
Record low27° (1971)
Mon, 0962° / 46°0.17
62 °
Mount Joy, Monday, 9 November
Climate normal for this date — 60-year average.
Average high62°
Average low46°
Average precipitation0.17 in
Chance of precipitation30%
Record high77° (2005)
Record low25° (2019)
Tue, 1060° / 45°0.12
60 °
Mount Joy, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.12 in
Chance of precipitation35%
Record high75° (2002)
Record low27° (1991)
Wed, 1160° / 43°0.09
60 °
Mount Joy, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high60°
Average low43°
Average precipitation0.09 in
Chance of precipitation28%
Record high74° (1978)
Record low23° (2025)
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 Mount Joy, 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 Mount Joy, 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.