Monthly outlook for St. James, NY: average high 59.9°, average low 49.8°. That is 0.6° below the climate normal for October. Precipitation is expected on 4 days (about 1.9 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 14 October (73.3°), the coolest 18 October (39°).
59.9°/49.8°
Average high / low
−0.6°
Below normal
4 / 5
Wet days / normal
1.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
61.6°
61.7°
-0.1°
21 October – 30 October
57.1°
58.7°
-0.9°
31 October – 9 November
at normal
55.9°
—
October records over 66 years
89.4°2 October 2019All-time high
32.7°27 October 1976All-time low
Climate normals and records are computed from the nearest reference point — Stony Brook University (3 mi).
Mon, 1270° / 48°0.4
70 °
St. James, Monday, 12 October
Rain. High 70°, low 48°.
Pressure29.77 inHg
Wind10.4 mph N
Humidity77%
Visibility6.2 mi
Dew point55°
Tue, 1368° / 52°0
68 °
St. James, Tuesday, 13 October
Partly cloudy. High 68°, low 52°.
Pressure30.00 inHg
Wind5.8 mph SE
Humidity77%
Visibility6.2 mi
Dew point59°
Wed, 1473° / 66°0.01
73 °
St. James, Wednesday, 14 October
Light rain. High 73°, low 66°.
Pressure29.85 inHg
Wind9.4 mph W
Humidity81%
Visibility6.2 mi
Dew point65°
Thu, 1563° / 57°0
63 °
St. James, Thursday, 15 October
Overcast. High 63°, low 57°.
Pressure30.18 inHg
Wind14.6 mph N
Humidity62%
Visibility—
Dew point47°
Fri, 1665° / 54°0.82
65 °
St. James, Friday, 16 October
Rain. High 65°, low 54°.
Pressure29.68 inHg
Wind28.3 mph NW
Humidity91%
Visibility—
Dew point58°
Sat, 1754° / 42°0
54 °
St. James, Saturday, 17 October
Light rain. High 54°, low 42°.
Pressure29.71 inHg
Wind21.4 mph NW
Humidity50%
Visibility—
Dew point35°
Sun, 1847° / 39°0.01
47 °
St. James, Sunday, 18 October
Light rain. High 47°, low 39°.
Pressure30.24 inHg
Wind21.7 mph NW
Humidity52%
Visibility—
Dew point25°
Mon, 1953° / 41°0
53 °
St. James, Monday, 19 October
Mostly clear. High 53°, low 41°.
Pressure30.62 inHg
Wind11.8 mph SW
Humidity39%
Visibility—
Dew point22°
Tue, 2063° / 50°0
63 °
St. James, Tuesday, 20 October
Clear. High 63°, low 50°.
Pressure30.36 inHg
Wind12.7 mph SW
Humidity44%
Visibility—
Dew point33°
Wed, 2158° / 51°0
58 °
St. James, Wednesday, 21 October
Clear. High 58°, low 51°.
Pressure30.45 inHg
Wind8.3 mph NE
Humidity57%
Visibility—
Dew point40°
Thu, 2255° / 50°0
55 °
St. James, Thursday, 22 October
Overcast. High 55°, low 50°.
Pressure30.47 inHg
Wind10.6 mph NE
Humidity60%
Visibility—
Dew point40°
Fri, 2355° / 49°0
55 °
St. James, Friday, 23 October
Clear. High 55°, low 49°.
Pressure30.39 inHg
Wind13.4 mph NE
Humidity64%
Visibility—
Dew point40°
Sat, 2457° / 50°0
57 °
St. James, Saturday, 24 October
Overcast. High 57°, low 50°.
Pressure30.15 inHg
Wind14.1 mph NE
Humidity73%
Visibility—
Dew point44°
Sun, 2559° / 50°0
59 °
St. James, Sunday, 25 October
Clear. High 59°, low 50°.
Pressure29.97 inHg
Wind15.4 mph N
Humidity56%
Visibility—
Dew point39°
Mon, 2658° / 47°0.07
58 °
St. James, Monday, 26 October
Light rain. High 58°, low 47°.
Pressure29.97 inHg
Wind13.5 mph S
Humidity52%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2758° / 49°0.16
58 °
St. James, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high58°
Average low49°
Average precipitation0.16 in
Chance of precipitation27%
Record high75° (2023)
Record low33° (1976)
Wed, 2858° / 48°0.17
58 °
St. James, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high58°
Average low48°
Average precipitation0.17 in
Chance of precipitation33%
Record high79° (2023)
Record low33° (1976)
Thu, 2956° / 47°0.19
56 °
St. James, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high56°
Average low47°
Average precipitation0.19 in
Chance of precipitation25%
Record high72° (1984)
Record low34° (1965)
Fri, 3056° / 46°0.12
56 °
St. James, Friday, 30 October
Climate normal for this date — 60-year average.
Average high56°
Average low46°
Average precipitation0.12 in
Chance of precipitation25%
Record high72° (2024)
Record low36° (2011)
Sat, 3157° / 47°0.06
57 °
St. James, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high57°
Average low47°
Average precipitation0.06 in
Chance of precipitation23%
Record high78° (2024)
Record low35° (2020)
Sun, 0158° / 49°0.14
58 °
St. James, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high58°
Average low49°
Average precipitation0.14 in
Chance of precipitation30%
Record high80° (2024)
Record low37° (1976)
Mon, 0257° / 48°0.08
57 °
St. James, Monday, 2 November
Climate normal for this date — 60-year average.
Average high57°
Average low48°
Average precipitation0.08 in
Chance of precipitation32%
Record high70° (2017)
Record low32° (1965)
Tue, 0357° / 47°0.12
57 °
St. James, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high57°
Average low47°
Average precipitation0.12 in
Chance of precipitation30%
Record high71° (2017)
Record low37° (1996)
Wed, 0456° / 46°0.05
56 °
St. James, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high56°
Average low46°
Average precipitation0.05 in
Chance of precipitation27%
Record high70° (2022)
Record low36° (2013)
Thu, 0556° / 46°0.15
56 °
St. James, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low46°
Average precipitation0.15 in
Chance of precipitation28%
Record high73° (2022)
Record low37° (1965)
Fri, 0655° / 46°0.11
55 °
St. James, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low46°
Average precipitation0.11 in
Chance of precipitation30%
Record high75° (2024)
Record low35° (1962)
Sat, 0755° / 45°0.1
55 °
St. James, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low45°
Average precipitation0.1 in
Chance of precipitation25%
Record high75° (2022)
Record low34° (2025)
Sun, 0854° / 44°0.17
54 °
St. James, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high54°
Average low44°
Average precipitation0.17 in
Chance of precipitation30%
Record high72° (2020)
Record low32° (2019)
Mon, 0954° / 44°0.1
54 °
St. James, Monday, 9 November
Climate normal for this date — 60-year average.
Average high54°
Average low44°
Average precipitation0.1 in
Chance of precipitation25%
Record high72° (2020)
Record low28° (2019)
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 St. James, NY 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 St. James, NY 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.