Monthly outlook for Markhams, NY: average high 60.7°, average low 45.5°. That is 2.6° above the climate normal for October. Precipitation is expected on 7 days (about 1.2 inches), against a normal of 7 days and 2.2 inches. The warmest day looks like 16 October (73.3°), the coolest 18 October (32°).
60.7°/45.5°
Average high / low
+2.6°
Above normal
7 / 7
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
61.2°
57.6°
+2°
18 October – 27 October
60°
53.1°
+3.8°
28 October – 6 November
at normal
50.4°
—
October records over 66 years
82.2°1 October 2019All-time high
19.6°20 October 1972All-time low
Climate normals and records are computed from the nearest reference point — New Albion (9 mi).
Fri, 0966° / 42°0
66 °
Markhams, Friday, 9 October
Light rain. High 66°, low 42°.
Pressure30.21 inHg
Wind13.7 mph W
Humidity55%
Visibility6.2 mi
Dew point44°
Sat, 1070° / 43°0
70 °
Markhams, Saturday, 10 October
Overcast. High 70°, low 43°.
Pressure30.39 inHg
Wind9.4 mph SE
Humidity50%
Visibility6.2 mi
Dew point46°
Sun, 1159° / 56°0.34
59 °
Markhams, Sunday, 11 October
Light rain. High 59°, low 56°.
Pressure30.15 inHg
Wind16.1 mph S
Humidity95%
Visibility2.1 mi
Dew point55°
Mon, 1264° / 58°0.04
64 °
Markhams, Monday, 12 October
Light rain. High 64°, low 58°.
Pressure29.85 inHg
Wind10 mph SW
Humidity85%
Visibility—
Dew point58°
Tue, 1364° / 52°0.14
64 °
Markhams, Tuesday, 13 October
Light rain. High 64°, low 52°.
Pressure29.83 inHg
Wind12.2 mph W
Humidity87%
Visibility—
Dew point55°
Wed, 1452° / 39°0
52 °
Markhams, Wednesday, 14 October
Mostly clear. High 52°, low 39°.
Pressure30.12 inHg
Wind7.1 mph NW
Humidity57%
Visibility—
Dew point36°
Thu, 1553° / 41°0.07
53 °
Markhams, Thursday, 15 October
Light rain. High 53°, low 41°.
Pressure30.21 inHg
Wind10.6 mph S
Humidity78%
Visibility—
Dew point44°
Fri, 1673° / 51°0.22
73 °
Markhams, Friday, 16 October
Light rain. High 73°, low 51°.
Pressure29.94 inHg
Wind20.5 mph W
Humidity81%
Visibility—
Dew point65°
Sat, 1748° / 34°0
48 °
Markhams, Saturday, 17 October
Overcast. High 48°, low 34°.
Pressure30.50 inHg
Wind18.6 mph N
Humidity45%
Visibility—
Dew point24°
Sun, 1854° / 32°0
54 °
Markhams, Sunday, 18 October
Clear. High 54°, low 32°.
Pressure30.53 inHg
Wind5.6 mph S
Humidity37%
Visibility—
Dew point25°
Mon, 1959° / 42°0
59 °
Markhams, Monday, 19 October
Overcast. High 59°, low 42°.
Pressure30.36 inHg
Wind7 mph S
Humidity40%
Visibility—
Dew point33°
Tue, 2061° / 50°0.14
61 °
Markhams, Tuesday, 20 October
Light rain. High 61°, low 50°.
Pressure30.12 inHg
Wind15.1 mph SW
Humidity76%
Visibility—
Dew point51°
Wed, 2162° / 51°0.03
62 °
Markhams, Wednesday, 21 October
Light rain. High 62°, low 51°.
Pressure30.03 inHg
Wind15.5 mph SW
Humidity77%
Visibility—
Dew point54°
Thu, 2263° / 47°0
63 °
Markhams, Thursday, 22 October
Partly cloudy. High 63°, low 47°.
Pressure30.03 inHg
Wind17.8 mph S
Humidity71%
Visibility—
Dew point51°
Fri, 2360° / 43°0.2
60 °
Markhams, Friday, 23 October
Light rain. High 60°, low 43°.
Pressure30.03 inHg
Wind19.4 mph SW
Humidity80%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2453° / 40°0.12
53 °
Markhams, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.12 in
Chance of precipitation55%
Record high73° (1963)
Record low24° (1969)
Sun, 2553° / 40°0.15
53 °
Markhams, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.15 in
Chance of precipitation47%
Record high75° (1963)
Record low27° (1962)
Mon, 2652° / 39°0.13
52 °
Markhams, Monday, 26 October
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.13 in
Chance of precipitation43%
Record high73° (1991)
Record low28° (1987)
Tue, 2752° / 38°0.15
52 °
Markhams, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.15 in
Chance of precipitation45%
Record high71° (2023)
Record low25° (1976)
Wed, 2851° / 37°0.14
51 °
Markhams, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.14 in
Chance of precipitation50%
Record high69° (1971)
Record low25° (1976)
Thu, 2949° / 37°0.14
49 °
Markhams, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.14 in
Chance of precipitation45%
Record high69° (1971)
Record low24° (1965)
Fri, 3051° / 37°0.1
51 °
Markhams, Friday, 30 October
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.1 in
Chance of precipitation28%
Record high71° (2024)
Record low26° (1983)
Sat, 3152° / 38°0.14
52 °
Markhams, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.14 in
Chance of precipitation35%
Record high73° (2024)
Record low24° (1988)
Sun, 0152° / 39°0.14
52 °
Markhams, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.14 in
Chance of precipitation43%
Record high67° (1974)
Record low28° (2002)
Mon, 0252° / 38°0.19
52 °
Markhams, Monday, 2 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.19 in
Chance of precipitation52%
Record high69° (2016)
Record low23° (1965)
Tue, 0351° / 37°0.13
51 °
Markhams, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.13 in
Chance of precipitation45%
Record high69° (1961)
Record low25° (1984)
Wed, 0449° / 37°0.13
49 °
Markhams, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.13 in
Chance of precipitation45%
Record high71° (2003)
Record low22° (1991)
Thu, 0549° / 37°0.13
49 °
Markhams, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.13 in
Chance of precipitation53%
Record high73° (2022)
Record low19° (1991)
Fri, 0648° / 35°0.13
48 °
Markhams, Friday, 6 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.13 in
Chance of precipitation58%
Record high69° (2022)
Record low21° (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 Markhams, 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 Markhams, 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.