Monthly outlook for Mount Joy, TN: average high 75.7°, average low 55.9°. That is 3.9° above the climate normal for October. Precipitation is expected on 3 days (about 0.2 inches), against a normal of 4 days and 2.0 inches. The warmest day looks like 15 October (88.7°), the coolest 27 October (40.2°).
75.7°/55.9°
Average high / low
+3.9°
Above normal
3 / 4
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
77.5°
69.7°
+4.3°
22 October – 31 October
72.7°
66.6°
+3.4°
1 November – 10 November
at normal
62.3°
—
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).
Tue, 1384° / 63°0
84 °
Mount Joy, Tuesday, 13 October
Clear. High 84°, low 63°.
Pressure30.06 inHg
Wind7.5 mph SW
Humidity51%
Visibility6.2 mi
Dew point64°
Wed, 1487° / 70°0.06
87 °
Mount Joy, Wednesday, 14 October
Light rain. High 87°, low 70°.
Pressure30.09 inHg
Wind7 mph W
Humidity63%
Visibility3.7 mi
Dew point71°
Thu, 1589° / 70°0
89 °
Mount Joy, Thursday, 15 October
Clear. High 89°, low 70°.
Pressure30.09 inHg
Wind8 mph SW
Humidity41%
Visibility6.2 mi
Dew point61°
Fri, 1675° / 55°0.02
75 °
Mount Joy, Friday, 16 October
Light rain. High 75°, low 55°.
Pressure30.15 inHg
Wind11.5 mph N
Humidity73%
Visibility6.2 mi
Dew point60°
Sat, 1765° / 48°0
65 °
Mount Joy, Saturday, 17 October
Clear. High 65°, low 48°.
Pressure30.39 inHg
Wind11.3 mph NE
Humidity38%
Visibility—
Dew point35°
Sun, 1868° / 45°0
68 °
Mount Joy, Sunday, 18 October
Clear. High 68°, low 45°.
Pressure30.36 inHg
Wind13.6 mph SE
Humidity26%
Visibility—
Dew point28°
Mon, 1969° / 51°0
69 °
Mount Joy, Monday, 19 October
Overcast. High 69°, low 51°.
Pressure30.33 inHg
Wind10.9 mph SE
Humidity53%
Visibility—
Dew point49°
Tue, 2072° / 61°0.04
72 °
Mount Joy, Tuesday, 20 October
Light rain. High 72°, low 61°.
Pressure30.24 inHg
Wind9.6 mph SE
Humidity62%
Visibility—
Dew point57°
Wed, 2178° / 61°0.06
78 °
Mount Joy, Wednesday, 21 October
Light rain. High 78°, low 61°.
Pressure30.24 inHg
Wind6.3 mph E
Humidity56%
Visibility—
Dew point58°
Thu, 2280° / 61°0
80 °
Mount Joy, Thursday, 22 October
Clear. High 80°, low 61°.
Pressure30.33 inHg
Wind11.9 mph SE
Humidity43%
Visibility—
Dew point53°
Fri, 2376° / 56°0
76 °
Mount Joy, Friday, 23 October
Overcast. High 76°, low 56°.
Pressure30.36 inHg
Wind11.7 mph S
Humidity41%
Visibility—
Dew point47°
Sat, 2478° / 55°0
78 °
Mount Joy, Saturday, 24 October
Overcast. High 78°, low 55°.
Pressure30.21 inHg
Wind10.6 mph S
Humidity47%
Visibility—
Dew point52°
Sun, 2572° / 57°0
72 °
Mount Joy, Sunday, 25 October
Overcast. High 72°, low 57°.
Pressure30.06 inHg
Wind12.4 mph S
Humidity71%
Visibility—
Dew point61°
Mon, 2663° / 46°0
63 °
Mount Joy, Monday, 26 October
Overcast. High 63°, low 46°.
Pressure30.12 inHg
Wind11.1 mph N
Humidity38%
Visibility—
Dew point35°
Tue, 2768° / 40°0
68 °
Mount Joy, Tuesday, 27 October
Clear. High 68°, low 40°.
Pressure29.88 inHg
Wind10.2 mph NW
Humidity24%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2866° / 50°0.16
66 °
Mount Joy, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high66°
Average low50°
Average precipitation0.16 in
Chance of precipitation27%
Record high82° (2023)
Record low32° (2001)
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)
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.