As of 17:44 EDT

Weather in Crystal Brook, NY

66°Current weather

Crystal Brook, Friday, 16 October, 17:44

Clear. Feels like 67°. High 70°, low 56°.

Pressure29.65 inHg
Wind5 mph SW
Humidity93%
Visibility6.2 mi
Dew point64°

Monthly outlook for Crystal Brook, NY: average high 59.7°, average low 50.5°. That is 0.3° above the climate normal for October. Precipitation is expected on 4 days (about 0.7 inches), against a normal of 4 days and 2.1 inches. The warmest day looks like 16 October (69.9°), the coolest 31 October (46.3°).

59.7°/50.5°
Average high / low
+0.3°
Above normal
4 / 4
Wet days / normal
0.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
16 October – 25 October60.6°60.2°+0.2°
26 October – 4 November58.2°57.3°+0.5°
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°0.04Light rain
65 °Light rain

Crystal Brook, Saturday, 17 October

Light rain. High 65°, low 49°.

Pressure30.15 inHg
Wind20 mph NW
Humidity55%
Visibility6.2 mi
Dew point37°
Sun, 1855° / 46°0Clear
55 °Clear

Crystal Brook, Sunday, 18 October

Clear. High 55°, low 46°.

Pressure30.59 inHg
Wind8.7 mph NE
Humidity49%
Visibility6.2 mi
Dew point32°
Mon, 1960° / 52°0Clear
60 °Clear

Crystal Brook, Monday, 19 October

Clear. High 60°, low 52°.

Pressure30.45 inHg
Wind12 mph NE
Humidity55%
Visibility6.2 mi
Dew point40°
Tue, 2064° / 54°0Clear
64 °Clear

Crystal Brook, Tuesday, 20 October

Clear. High 64°, low 54°.

Pressure30.24 inHg
Wind14.1 mph NE
Humidity65%
Visibility6.2 mi
Dew point47°
Wed, 2160° / 52°0Clear
60 °Clear

Crystal Brook, Wednesday, 21 October

Clear. High 60°, low 52°.

Pressure30.33 inHg
Wind21.6 mph NE
Humidity69%
Visibility—
Dew point44°
Thu, 2257° / 50°0Overcast
57 °Overcast

Crystal Brook, Thursday, 22 October

Overcast. High 57°, low 50°.

Pressure30.27 inHg
Wind20.8 mph NE
Humidity79%
Visibility—
Dew point45°
Fri, 2362° / 53°0.08Light rain
62 °Light rain

Crystal Brook, Friday, 23 October

Light rain. High 62°, low 53°.

Pressure30.12 inHg
Wind17.3 mph NE
Humidity77%
Visibility—
Dew point48°
Sat, 2458° / 50°0Overcast
58 °Overcast

Crystal Brook, Saturday, 24 October

Overcast. High 58°, low 50°.

Pressure30.33 inHg
Wind23.3 mph NE
Humidity75%
Visibility—
Dew point45°
Sun, 2557° / 47°0Clear
57 °Clear

Crystal Brook, Sunday, 25 October

Clear. High 57°, low 47°.

Pressure30.45 inHg
Wind20 mph NE
Humidity67%
Visibility—
Dew point38°
Mon, 2660° / 49°0Overcast
60 °Overcast

Crystal Brook, Monday, 26 October

Overcast. High 60°, low 49°.

Pressure30.24 inHg
Wind10.7 mph SW
Humidity42%
Visibility—
Dew point30°
Tue, 2762° / 51°0.01Light rain
62 °Light rain

Crystal Brook, Tuesday, 27 October

Light rain. High 62°, low 51°.

Pressure29.91 inHg
Wind21.6 mph NW
Humidity61%
Visibility—
Dew point46°
Wed, 2856° / 50°0Clear
56 °Clear

Crystal Brook, Wednesday, 28 October

Clear. High 56°, low 50°.

Pressure30.09 inHg
Wind21.1 mph NW
Humidity56%
Visibility—
Dew point37°
Thu, 2954° / 47°0Partly cloudy
54 °Partly cloudy

Crystal Brook, Thursday, 29 October

Partly cloudy. High 54°, low 47°.

Pressure30.15 inHg
Wind13.5 mph NW
Humidity50%
Visibility—
Dew point31°
Fri, 3061° / 56°0.42Rain
61 °Rain

Crystal Brook, Friday, 30 October

Rain. High 61°, low 56°.

Pressure29.62 inHg
Wind20.5 mph S
Humidity81%
Visibility—
Dew point53°
Sat, 3156° / 46°0Partly cloudy
56 °Partly cloudy

Crystal Brook, Saturday, 31 October

Partly cloudy. High 56°, low 46°.

Pressure29.74 inHg
Wind21.9 mph N
Humidity58%
Visibility—
Dew point40°
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.