Altmar, NY Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Altmar, NY.

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Current Conditions — Altmar, NY

WATERTOWN (KART)

Clear

68.0 F
Humidity:30%
Wind Speed:W 10.4 mph
Barometer:30.21 in
Dewpoint:35.6 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 27 2026, 02:20 PM EDT
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5-Day Forecast — Altmar, NY

Monday

High 71 °F
Mostly Sunny
Monday
Night
Low 48 °F
Partly Cloudy
Tuesday

High 64 °F
Chance of Rain Showers
Tuesday
Night
Low 48 °F
Chance of Rain
Wednesday

High 62 °F
T-storms Likely
Wednesday
Night
Low 42 °F
Rain
Thursday

High 50 °F
Rain Showers
Thursday
Night
Low 35 °F
Chance of Rain
Friday

High 48 °F
Chance of Rain Showers

Detailed Forecast — Altmar, NY

Monday
Mostly Sunny. High near 71°F. Wind 2 to 3 mph, with gusts as high as 9 mph.
Monday Night
Partly Cloudy. Low around 48°F. Wind 3 to 9 mph, with gusts as high as 21 mph.
Tuesday
Chance of Rain Showers. High near 64°F. Wind 9 to 14 mph, with gusts as high as 25 mph.
Tuesday Night
Chance of Rain. Low around 48°F. Wind 5 to 9 mph, with gusts as high as 18 mph.
Wednesday
Thunderstorms Likely. High near 62°F. Wind 5 to 7 mph, with gusts as high as 13 mph.
Wednesday Night
Rain. Low around 42°F. Wind around 6 mph, with gusts as high as 13 mph.
Thursday
Rain Showers. High near 50°F. Wind 7 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Chance of Rain. Low around 35°F. Wind 9 to 10 mph, with gusts as high as 16 mph.
Friday
Chance of Rain Showers. High near 48°F. Wind 12 to 15 mph, with gusts as high as 25 mph.
Friday Night
Chance of Rain. Low around 33°F. Wind 8 to 10 mph, with gusts as high as 17 mph.
Saturday
Chance of Rain Showers. High near 46°F. Wind 7 to 12 mph, with gusts as high as 21 mph.
Saturday Night
Chance of Rain. Low around 33°F. Wind 3 to 6 mph, with gusts as high as 12 mph.
Sunday
Chance of Rain Showers. High near 48°F. Wind 5 to 9 mph, with gusts as high as 17 mph.
NY Radar
Current Radar • NY
Day 1 Outlook • April 27, 2026

Observation History — Altmar, NY

Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
02:20 PM EDT W 10.4 10.00 Clear -- 68.0 35.6 30% NA NA 30.21 1023.0
02:15 PM EDT W 11.5 10.00 Clear -- 68.0 35.6 30% NA NA 30.20 1022.7
02:05 PM EDT W 9.2 10.00 Clear -- 68.0 35.6 30% NA NA 30.21 1023.0
01:50 PM EDT W 8.1 10.00 Clear -- 68.0 37.4 32% NA NA 30.21 1023.0
01:40 PM EDT W 9.2 10.00 Clear -- 66.2 37.4 35% NA NA 30.21 1023.0
01:35 PM EDT 9.2 10.00 Clear -- 68.0 37.4 32% NA NA 30.21 1023.0
01:30 PM EDT W 6.9 10.00 Clear -- 66.2 37.4 35% NA NA 30.21 1023.0
01:15 PM EDT 9.2 10.00 Clear -- 66.2 39.2 37% NA NA 30.22 1023.4
01:10 PM EDT 8.1 10.00 Clear -- 66.2 39.2 37% NA NA 30.22 1023.4
01:00 PM EDT 8.1 10.00 Clear -- 64.4 37.4 37% NA NA 30.22 1023.4
12:50 PM EDT 8.1 10.00 Clear -- 64.4 35.6 34% NA NA 30.23 1023.7
12:40 PM EDT 9.2 10.00 Clear -- 64.4 37.4 37% NA NA 30.23 1023.7
12:35 PM EDT W 11.5 10.00 Clear -- 66.2 37.4 35% NA NA 30.24 1024.0
12:30 PM EDT 9.2 10.00 Clear -- 64.4 37.4 37% NA NA 30.24 1024.0
12:25 PM EDT W 11.5 10.00 Clear -- 64.4 37.4 37% NA NA 30.24 1024.0
12:10 PM EDT 9.2 10.00 Clear -- 64.4 37.4 37% NA NA 30.24 1024.0
12:05 PM EDT W 9.2 10.00 Clear -- 64.4 37.4 37% NA NA 30.24 1024.0
12:00 PM EDT W 11.5 10.00 Clear -- 64.4 35.6 34% NA NA 30.25 1024.4
11:50 AM EDT 8.1 10.00 Clear -- 64.4 35.6 34% NA NA 30.25 1024.4
11:45 AM EDT 8.1 10.00 Clear -- 64.4 35.6 34% NA NA 30.25 1024.4
11:35 AM EDT 9.2 10.00 Clear -- 64.4 37.4 37% NA NA 30.25 1024.4
11:30 AM EDT 8.1 10.00 Clear -- 64.4 35.6 34% NA NA 30.25 1024.4
11:25 AM EDT 8.1 10.00 Clear -- 64.4 35.6 34% NA NA 30.25 1024.4
11:05 AM EDT W 5.7 10.00 Clear -- 62.6 39.2 42% NA NA 30.25 1024.4

Regional Weather Observation

WATERTOWN (KART)

Clear
68.0 F

FULTON (KFZY)

Clear
68.0 F

SYRACUSE (KSYR)

Clear
69.8 F

ROME/GRIFFISS AF (KRME)

Clear
71.6 F

FORT DRUM/WHEELE (KGTB)

Clear
70.7 F

WILLIAMSON/SODUS (KSDC)

Clear
60.8 F
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