Hourly Weather Forecast - Old Brookville, NY

11 AM
29°F
70%
8mph
NNW
70% Chance of Heavy Snow
Humidity
85%
Feels like
22°F
Dew Point
25°F
12 PM
29°F
70%
8mph
NNW
70% Chance of Heavy Snow
Humidity
79%
Feels like
21°F
Dew Point
24°F
1 PM
29°F
70%
9mph
NNW
70% Chance Frozen Mix
Humidity
75%
Feels like
20°F
Dew Point
22°F
2 PM
28°F
10%
9mph
NW
Mostly Cloudy
Humidity
71%
Feels like
20°F
Dew Point
20°F
3 PM
27°F
0%
9mph
NW
Mostly Cloudy
Humidity
69%
Feels like
18°F
Dew Point
19°F
4 PM
26°F
0%
9mph
NW
Partly Cloudy
Humidity
69%
Feels like
17°F
Dew Point
17°F
4:27 PM
5 PM
25°F
0%
9mph
NW
Partly Cloudy
Humidity
68%
Feels like
15°F
Dew Point
16°F
6 PM
24°F
0%
10mph
NW
Partly Cloudy
Humidity
67%
Feels like
13°F
Dew Point
14°F
7 PM
23°F
0%
10mph
NW
Mostly Clear
Humidity
67%
Feels like
12°F
Dew Point
13°F
8 PM
22°F
0%
10mph
NW
Mostly Clear
Humidity
66%
Feels like
11°F
Dew Point
12°F
9 PM
21°F
0%
10mph
NW
Mostly Clear
Humidity
66%
Feels like
10°F
Dew Point
11°F
10 PM
20°F
0%
10mph
NNW
Mostly Clear
Humidity
64%
Feels like
9°F
Dew Point
10°F
11 PM
19°F
0%
10mph
NW
Clear
Humidity
62%
Feels like
8°F
Dew Point
8°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

Extreme cold paired with their wind chill values will shiver much of the nation.

Snowfall forecast through Monday evening.

Mid-Atlantic, Great Lakes Snow Piles Up

Sunday Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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