As of 00:59 EDT

Weather in Crystal Brook, NY

58°Current weather

Crystal Brook, Friday, 16 October, 00:59

Overcast. Feels like 57°. High 77°, low 57°.

Pressure30.09 inHg
Wind3.4 mph SE
Humidity79%
Visibility6.2 mi
Dew point52°

Monthly outlook for Crystal Brook, NY: average high 60.3°, average low 51.9°. That is 0.6° above the climate normal for October. Precipitation is expected on 6 days (about 1.1 inches), against a normal of 4 days and 2.1 inches. The warmest day looks like 16 October (77.1°), the coolest 18 October (46.6°).

60.3°/51.9°
Average high / low
+0.6°
Above normal
6 / 4
Wet days / normal
1.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
16 October – 25 October61.3°60.2°+0.6°
26 October – 4 November58.5°57.3°+0.7°
5 November – 14 Novemberat normal53.4°—

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 (5 mi).

Sat, 1765° / 49°0.08Light rain
65 °Light rain

Crystal Brook, Saturday, 17 October

Light rain. High 65°, low 49°.

Pressure30.12 inHg
Wind18.6 mph N
Humidity59%
Visibility6.2 mi
Dew point38°
Sun, 1853° / 47°0Clear
53 °Clear

Crystal Brook, Sunday, 18 October

Clear. High 53°, low 47°.

Pressure30.62 inHg
Wind7.9 mph NE
Humidity51%
Visibility6.2 mi
Dew point31°
Mon, 1959° / 49°0Overcast
59 °Overcast

Crystal Brook, Monday, 19 October

Overcast. High 59°, low 49°.

Pressure30.50 inHg
Wind12.8 mph NE
Humidity59%
Visibility6.2 mi
Dew point41°
Tue, 2063° / 53°0.11Light rain
63 °Light rain

Crystal Brook, Tuesday, 20 October

Light rain. High 63°, low 53°.

Pressure30.24 inHg
Wind21 mph NE
Humidity63%
Visibility—
Dew point43°
Wed, 2159° / 51°0.06Light rain
59 °Light rain

Crystal Brook, Wednesday, 21 October

Light rain. High 59°, low 51°.

Pressure30.21 inHg
Wind26.6 mph NE
Humidity72%
Visibility—
Dew point48°
Thu, 2259° / 53°0Overcast
59 °Overcast

Crystal Brook, Thursday, 22 October

Overcast. High 59°, low 53°.

Pressure30.42 inHg
Wind20.4 mph NE
Humidity68%
Visibility—
Dew point44°
Fri, 2360° / 50°0Clear
60 °Clear

Crystal Brook, Friday, 23 October

Clear. High 60°, low 50°.

Pressure30.33 inHg
Wind14.8 mph NE
Humidity69%
Visibility—
Dew point42°
Sat, 2461° / 54°0Clear
61 °Clear

Crystal Brook, Saturday, 24 October

Clear. High 61°, low 54°.

Pressure30.42 inHg
Wind18 mph E
Humidity68%
Visibility—
Dew point46°
Sun, 2556° / 51°0Light rain
56 °Light rain

Crystal Brook, Sunday, 25 October

Light rain. High 56°, low 51°.

Pressure30.53 inHg
Wind19.3 mph NE
Humidity72%
Visibility—
Dew point45°
Mon, 2660° / 51°0Partly cloudy
60 °Partly cloudy

Crystal Brook, Monday, 26 October

Partly cloudy. High 60°, low 51°.

Pressure30.33 inHg
Wind13.6 mph NE
Humidity73%
Visibility—
Dew point44°
Tue, 2763° / 53°0Mostly clear
63 °Mostly clear

Crystal Brook, Tuesday, 27 October

Mostly clear. High 63°, low 53°.

Pressure30.06 inHg
Wind11.6 mph N
Humidity56%
Visibility—
Dew point41°
Wed, 2859° / 54°0Partly cloudy
59 °Partly cloudy

Crystal Brook, Wednesday, 28 October

Partly cloudy. High 59°, low 54°.

Pressure30.06 inHg
Wind8.6 mph SE
Humidity58%
Visibility—
Dew point41°
Thu, 2958° / 55°0.04Light rain
58 °Light rain

Crystal Brook, Thursday, 29 October

Light rain. High 58°, low 55°.

Pressure30.09 inHg
Wind20 mph E
Humidity75%
Visibility—
Dew point49°
Fri, 3057° / 52°0.1Light rain
57 °Light rain

Crystal Brook, Friday, 30 October

Light rain. High 57°, low 52°.

Pressure29.94 inHg
Wind23.9 mph E
Humidity79%
Visibility—
Dew point47°
Sat, 3154° / 52°0Overcast
54 °Overcast

Crystal Brook, Saturday, 31 October

Overcast. High 54°, low 52°.

Pressure30.00 inHg
Wind11.6 mph N
Humidity69%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0158° / 49°0.14Climate normal
58 °Climate normal

Crystal Brook, 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°0.08Climate normal
57 °Climate normal

Crystal Brook, 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°0.12Climate normal
57 °Climate normal

Crystal Brook, 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°0.05Climate normal
56 °Climate normal

Crystal Brook, 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°0.15Climate normal
56 °Climate normal

Crystal Brook, 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°0.11Climate normal
55 °Climate normal

Crystal Brook, 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°0.1Climate normal
55 °Climate normal

Crystal Brook, 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°0.17Climate normal
54 °Climate normal

Crystal Brook, 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°0.1Climate normal
54 °Climate normal

Crystal Brook, 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)
Tue, 1055° / 44°0.17Climate normal
55 °Climate normal

Crystal Brook, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high55°
Average low44°
Average precipitation0.17 in
Chance of precipitation42%
Record high69° (2020)
Record low28° (2017)
Wed, 1153° / 44°0.15Climate normal
53 °Climate normal

Crystal Brook, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high53°
Average low44°
Average precipitation0.15 in
Chance of precipitation37%
Record high69° (2024)
Record low26° (2017)
Thu, 1252° / 42°0.16Climate normal
52 °Climate normal

Crystal Brook, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high52°
Average low42°
Average precipitation0.16 in
Chance of precipitation38%
Record high69° (2022)
Record low30° (2019)
Fri, 1351° / 41°0.22Climate normal
51 °Climate normal

Crystal Brook, Friday, 13 November

Climate normal for this date — 60-year average.

Average high51°
Average low41°
Average precipitation0.22 in
Chance of precipitation40%
Record high66° (1964)
Record low24° (2019)
Sat, 1451° / 41°0.11Climate normal
51 °Climate normal

Crystal Brook, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high51°
Average low41°
Average precipitation0.11 in
Chance of precipitation22%
Record high64° (1989)
Record low26° (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 Crystal Brook, 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 Crystal Brook, 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.