Monthly outlook for Mountain Island, NC: average high 66.1°, average low 49.2°. That is 1.9° above the climate normal for October. Precipitation is expected on 3 days (about 1.6 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 4 November (76.6°), the coolest 12 November (39.8°).
66.1°/49.2°
Average high / low
+1.9°
Above normal
3 / 4
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
31 October – 9 November
68.8°
64.2°
+2.6°
10 November – 19 November
61.5°
60°
+0.8°
20 November – 29 November
at normal
57.6°
—
October records over 66 years
94.6°3 October 2019All-time high
31.1°27 October 1962All-time low
Climate normals and records are computed from the nearest reference point — Huntersville (9 mi).
Sun, 0165° / 47°0
65 °
Mountain Island, Sunday, 1 November
Overcast. High 65°, low 47°.
Pressure30.47 inHg
Wind8.5 mph NE
Humidity56%
Visibility6.2 mi
Dew point43°
Mon, 0270° / 44°0
70 °
Mountain Island, Monday, 2 November
Overcast. High 70°, low 44°.
Pressure30.42 inHg
Wind7 mph NE
Humidity60%
Visibility6.2 mi
Dew point46°
Tue, 0375° / 51°0
75 °
Mountain Island, Tuesday, 3 November
Overcast. High 75°, low 51°.
Pressure30.30 inHg
Wind4.9 mph NE
Humidity66%
Visibility6.2 mi
Dew point55°
Wed, 0477° / 62°0.08
77 °
Mountain Island, Wednesday, 4 November
Light rain. High 77°, low 62°.
Pressure30.06 inHg
Wind7.8 mph SE
Humidity74%
Visibility6.2 mi
Dew point61°
Thu, 0574° / 64°0.78
74 °
Mountain Island, Thursday, 5 November
Rain. High 74°, low 64°.
Pressure29.85 inHg
Wind10.2 mph S
Humidity78%
Visibility—
Dew point65°
Fri, 0673° / 56°0
73 °
Mountain Island, Friday, 6 November
Partly cloudy. High 73°, low 56°.
Pressure29.80 inHg
Wind7.7 mph W
Humidity51%
Visibility—
Dew point51°
Sat, 0766° / 54°0.03
66 °
Mountain Island, Saturday, 7 November
Light rain. High 66°, low 54°.
Pressure29.62 inHg
Wind7.1 mph NW
Humidity54%
Visibility—
Dew point47°
Sun, 0865° / 46°0
65 °
Mountain Island, Sunday, 8 November
Clear. High 65°, low 46°.
Pressure29.59 inHg
Wind17.4 mph NW
Humidity26%
Visibility—
Dew point27°
Mon, 0959° / 42°0
59 °
Mountain Island, Monday, 9 November
Clear. High 59°, low 42°.
Pressure29.80 inHg
Wind10.9 mph W
Humidity32%
Visibility—
Dew point26°
Tue, 1064° / 42°0
64 °
Mountain Island, Tuesday, 10 November
Mostly clear. High 64°, low 42°.
Pressure29.91 inHg
Wind10.9 mph NW
Humidity28%
Visibility—
Dew point28°
Wed, 1166° / 45°0
66 °
Mountain Island, Wednesday, 11 November
Mostly clear. High 66°, low 45°.
Pressure30.00 inHg
Wind9.4 mph NW
Humidity20%
Visibility—
Dew point22°
Thu, 1254° / 40°0.01
54 °
Mountain Island, Thursday, 12 November
Light rain. High 54°, low 40°.
Pressure30.12 inHg
Wind3.7 mph NE
Humidity46%
Visibility—
Dew point30°
Fri, 1367° / 47°0.72
67 °
Mountain Island, Friday, 13 November
Heavy rain. High 67°, low 47°.
Pressure29.85 inHg
Wind8.7 mph S
Humidity56%
Visibility—
Dew point46°
Sat, 1462° / 50°0
62 °
Mountain Island, Saturday, 14 November
Light rain. High 62°, low 50°.
Pressure29.62 inHg
Wind19.7 mph NW
Humidity45%
Visibility—
Dew point40°
Sun, 1557° / 44°0
57 °
Mountain Island, Sunday, 15 November
Mostly clear. High 57°, low 44°.
Pressure29.85 inHg
Wind14.4 mph NW
Humidity49%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 1660° / 43°0.1
60 °
Mountain Island, Monday, 16 November
Climate normal for this date — 60-year average.
Average high60°
Average low43°
Average precipitation0.1 in
Chance of precipitation25%
Record high75° (1964)
Record low28° (1995)
Tue, 1759° / 43°0.07
59 °
Mountain Island, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high59°
Average low43°
Average precipitation0.07 in
Chance of precipitation28%
Record high74° (1964)
Record low29° (1997)
Wed, 1860° / 43°0.06
60 °
Mountain Island, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high60°
Average low43°
Average precipitation0.06 in
Chance of precipitation20%
Record high76° (2016)
Record low29° (2014)
Thu, 1960° / 43°0.08
60 °
Mountain Island, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high60°
Average low43°
Average precipitation0.08 in
Chance of precipitation18%
Record high74° (2025)
Record low24° (2014)
Fri, 2059° / 43°0.06
59 °
Mountain Island, Friday, 20 November
Climate normal for this date — 60-year average.
Average high59°
Average low43°
Average precipitation0.06 in
Chance of precipitation17%
Record high73° (1991)
Record low30° (1980)
Sat, 2157° / 42°0.14
57 °
Mountain Island, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.14 in
Chance of precipitation22%
Record high73° (2011)
Record low28° (1968)
Sun, 2257° / 42°0.14
57 °
Mountain Island, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.14 in
Chance of precipitation27%
Record high78° (2025)
Record low24° (2000)
Mon, 2357° / 41°0.08
57 °
Mountain Island, Monday, 23 November
Climate normal for this date — 60-year average.
Average high57°
Average low41°
Average precipitation0.08 in
Chance of precipitation27%
Record high71° (2010)
Record low26° (1976)
Tue, 2458° / 42°0.14
58 °
Mountain Island, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.14 in
Chance of precipitation28%
Record high73° (1973)
Record low22° (1970)
Wed, 2557° / 42°0.09
57 °
Mountain Island, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.09 in
Chance of precipitation27%
Record high72° (2016)
Record low22° (1970)
Thu, 2658° / 42°0.17
58 °
Mountain Island, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.17 in
Chance of precipitation30%
Record high70° (2025)
Record low28° (1970)
Fri, 2758° / 43°0.14
58 °
Mountain Island, Friday, 27 November
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.14 in
Chance of precipitation32%
Record high75° (2001)
Record low28° (1977)
Sat, 2858° / 43°0.11
58 °
Mountain Island, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.11 in
Chance of precipitation38%
Record high74° (2001)
Record low25° (2018)
Sun, 2956° / 40°0.11
56 °
Mountain Island, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.11 in
Chance of precipitation27%
Record high72° (2001)
Record low25° (2023)
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 Mountain Island, NC 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 Mountain Island, NC 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.