As of 08:52 EDT

Weather in Crystal Brook, NY

45°Current weather

Crystal Brook, Sunday, 18 October, 08:52

Clear. Feels like 40°. High 51°, low 43°.

Pressure30.56 inHg
Wind11.5 mph N
Humidity66%
Visibility6.2 mi
Dew point34°

Monthly outlook for Crystal Brook, NY: average high 61°, average low 52.7°. That is 1.3° above the climate normal for October. Precipitation is expected on 2 days (about 1.0 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 2 November (69.9°), the coolest 18 October (42.9°).

61°/52.7°
Average high / low
+1.3°
Above normal
2 / 5
Wet days / normal
1.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
18 October – 27 October58.5°59.6°-0.6°
28 October – 6 November65.2°56.7°+4.7°
7 November – 16 Novemberat normal52.6°—

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).

Mon, 1961° / 47°0Overcast
61 °Overcast

Crystal Brook, Monday, 19 October

Overcast. High 61°, low 47°.

Pressure30.42 inHg
Wind13.1 mph NE
Humidity55%
Visibility6.2 mi
Dew point40°
Tue, 2064° / 54°0Clear
64 °Clear

Crystal Brook, Tuesday, 20 October

Clear. High 64°, low 54°.

Pressure30.21 inHg
Wind18.8 mph N
Humidity61%
Visibility6.2 mi
Dew point46°
Wed, 2158° / 50°0Clear
58 °Clear

Crystal Brook, Wednesday, 21 October

Clear. High 58°, low 50°.

Pressure30.27 inHg
Wind15.1 mph NE
Humidity68%
Visibility6.2 mi
Dew point42°
Thu, 2263° / 49°0Clear
63 °Clear

Crystal Brook, Thursday, 22 October

Clear. High 63°, low 49°.

Pressure30.03 inHg
Wind17.8 mph N
Humidity67%
Visibility—
Dew point42°
Fri, 2354° / 47°0Clear
54 °Clear

Crystal Brook, Friday, 23 October

Clear. High 54°, low 47°.

Pressure30.24 inHg
Wind21.8 mph N
Humidity61%
Visibility—
Dew point35°
Sat, 2454° / 49°0Clear
54 °Clear

Crystal Brook, Saturday, 24 October

Clear. High 54°, low 49°.

Pressure30.65 inHg
Wind13.1 mph NE
Humidity56%
Visibility—
Dew point35°
Sun, 2561° / 51°0Clear
61 °Clear

Crystal Brook, Sunday, 25 October

Clear. High 61°, low 51°.

Pressure30.47 inHg
Wind15.4 mph SW
Humidity60%
Visibility—
Dew point44°
Mon, 2659° / 51°0.02Light rain
59 °Light rain

Crystal Brook, Monday, 26 October

Light rain. High 59°, low 51°.

Pressure30.24 inHg
Wind16.2 mph N
Humidity52%
Visibility—
Dew point36°
Tue, 2761° / 51°0Overcast
61 °Overcast

Crystal Brook, Tuesday, 27 October

Overcast. High 61°, low 51°.

Pressure30.21 inHg
Wind15.8 mph W
Humidity45%
Visibility—
Dew point33°
Wed, 2856° / 52°0Partly cloudy
56 °Partly cloudy

Crystal Brook, Wednesday, 28 October

Partly cloudy. High 56°, low 52°.

Pressure30.30 inHg
Wind11.1 mph NW
Humidity60%
Visibility—
Dew point40°
Thu, 2963° / 55°0.16Light rain
63 °Light rain

Crystal Brook, Thursday, 29 October

Light rain. High 63°, low 55°.

Pressure30.12 inHg
Wind17 mph S
Humidity80%
Visibility—
Dew point52°
Fri, 3067° / 61°0.82Heavy rain
67 °Heavy rain

Crystal Brook, Friday, 30 October

Heavy rain. High 67°, low 61°.

Pressure29.74 inHg
Wind17.1 mph SW
Humidity87%
Visibility—
Dew point60°
Sat, 3167° / 60°0Partly cloudy
67 °Partly cloudy

Crystal Brook, Saturday, 31 October

Partly cloudy. High 67°, low 60°.

Pressure30.03 inHg
Wind8.6 mph SW
Humidity63%
Visibility—
Dew point51°
Sun, 0168° / 61°0Partly cloudy
68 °Partly cloudy

Crystal Brook, Sunday, 1 November

Partly cloudy. High 68°, low 61°.

Pressure29.97 inHg
Wind15.3 mph W
Humidity75%
Visibility—
Dew point57°
Mon, 0270° / 63°0Clear
70 °Clear

Crystal Brook, Monday, 2 November

Clear. High 70°, low 63°.

Pressure29.91 inHg
Wind18.3 mph NW
Humidity80%
Visibility—
Dew point59°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sun, 1552° / 41°0.12Climate normal
52 °Climate normal

Crystal Brook, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high52°
Average low41°
Average precipitation0.12 in
Chance of precipitation42%
Record high71° (1993)
Record low25° (1967)
Mon, 1651° / 41°0.14Climate normal
51 °Climate normal

Crystal Brook, Monday, 16 November

Climate normal for this date — 60-year average.

Average high51°
Average low41°
Average precipitation0.14 in
Chance of precipitation38%
Record high65° (2006)
Record low24° (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 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.