Rotterdam, NY Weather Forecast & Alerts

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

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Current Conditions — Rotterdam, NY

JOHNSTOWN (KNY0)

Clear

36.1 F
Humidity:89%
Wind Speed:W 6.9 mph
Barometer:29.87 in
Dewpoint:33.3 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:30.6 F
May 1 2026, 05:35 AM EDT
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5-Day Forecast — Rotterdam, NY

Friday

High 60 °F
Partly Sunny
Friday
Night
Low 41 °F
Rain Likely
Saturday

High 59 °F
Rain Showers Likely
Saturday
Night
Low 37 °F
Mostly Cloudy
Sunday

High 57 °F
Partly Sunny
Sunday
Night
Low 37 °F
Mostly Clear
Monday

High 66 °F
Chance of Rain Showers
Monday
Night
Low 50 °F
Chance of Rain
Tuesday

High 73 °F
Chance of Rain Showers

Detailed Forecast — Rotterdam, NY

Friday
Partly Sunny. High near 60°F. Wind 3 to 9 mph, with gusts as high as 15 mph.
Friday Night
Rain Likely. Low around 41°F. Wind 2 to 3 mph, with gusts as high as 7 mph.
Saturday
Rain Showers Likely. High near 59°F. Wind 5 to 8 mph, with gusts as high as 14 mph.
Saturday Night
Mostly Cloudy. Low around 37°F. Wind 5 to 6 mph, with gusts as high as 12 mph.
Sunday
Partly Sunny. High near 57°F. Wind 7 to 16 mph, with gusts as high as 25 mph.
Sunday Night
Mostly Clear. Low around 37°F. Wind 2 to 7 mph, with gusts as high as 17 mph.
Monday
Chance of Rain Showers. High near 66°F. Wind 7 to 16 mph, with gusts as high as 25 mph.
Monday Night
Chance of Rain. Low around 50°F. Wind 6 to 8 mph, with gusts as high as 16 mph.
Tuesday
Chance of Rain Showers. High near 73°F. Wind 8 to 14 mph, with gusts as high as 24 mph.
Tuesday Night
Chance of Rain. Low around 53°F. Wind around 6 mph, with gusts as high as 12 mph.
Wednesday
Chance of Rain Showers. High near 68°F. Wind 8 to 14 mph, with gusts as high as 25 mph.
Wednesday Night
Rain Likely. Low around 48°F. Wind 6 to 8 mph, with gusts as high as 15 mph.
Thursday
Thunderstorms Likely. High near 64°F. Wind 8 to 12 mph, with gusts as high as 18 mph.
NY Radar
Current Radar • NY
Day 1 Outlook • May 1, 2026

Observation History — Rotterdam, 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)
05:35 AM EDT W 6.9 10.00 Clear -- 36.1 33.3 89% 30.6 NA 29.87 1011.5
05:15 AM EDT W 5.8 10.00 Clear -- 36.1 33.1 89% 31.3 NA 29.86 1011.2
04:55 AM EDT 5.8 10.00 Clear -- 36.9 33.3 87% 32.2 NA 29.86 1011.2
04:35 AM EDT W 4.7 10.00 Clear -- 37.8 33.8 85% 34.2 NA 29.85 1010.8
04:15 AM EDT W 5.8 10.00 Partly Cloudy -- 38.3 33.4 82% 33.8 NA 29.85 1010.8
03:55 AM EDT 4.7 10.00 Partly Cloudy -- 38.5 33.1 81% 34.9 NA 29.85 1010.8
03:35 AM EDT 4.7 10.00 Cloudy -- 39.6 33.8 80% 36.1 NA 29.85 1010.8
03:15 AM EDT W 5.8 10.00 Cloudy -- 40.1 33.8 78% 36.0 NA 29.85 1010.8
02:55 AM EDT W 3.4 10.00 Cloudy -- 40.5 33.8 77% 38.5 NA 29.85 1010.8
02:35 AM EDT 10.00 Cloudy -- NULL % NA NA M
02:15 AM EDT W 4.7 10.00 Cloudy -- 40.6 33.3 75% 37.4 NA 29.84 1010.5
01:55 AM EDT W 5.8 10.00 Cloudy -- 41.0 33.3 74% 37.0 NA 29.84 1010.5
01:35 AM EDT W 5.8 10.00 Cloudy -- 41.0 33.1 73% 37.0 NA 29.83 1010.2
01:15 AM EDT W 5.8 10.00 Cloudy -- 40.5 33.1 75% 36.5 NA 29.84 1010.5
12:55 AM EDT W 8.1 10.00 Mostly Cloudy -- 40.5 32.7 74% 35.1 NA 29.84 1010.5
12:35 AM EDT W 5.8 10.00 Cloudy -- 40.6 32.4 72% 36.7 NA 29.84 1010.5
12:15 AM EDT 0.0 10.00 Cloudy -- 41.4 32.5 71% NA NA 29.84 1010.5
11:55 PM EDT W 5.8 10.00 Cloudy -- 41.5 32.5 70% 37.8 NA 29.84 1010.5
11:35 PM EDT W 6.9 10.00 Cloudy -- 41.9 32.2 68% 37.4 NA 29.85 1010.8
11:15 PM EDT 9.2 10.00 Cloudy -- 42.3 32.2 67% 36.9 NA 29.85 1010.8
10:55 PM EDT 5.8 10.00 Cloudy -- 42.4 32.2 67% 38.8 NA 29.85 1010.8
10:35 PM EDT 9.2 G 18.3 10.00 Cloudy -- 42.8 32.4 66% 37.4 NA 29.85 1010.8
10:15 PM EDT 10.3 G 18.3 10.00 Cloudy -- 43.0 32.5 66% 37.2 NA 29.85 1010.8
09:55 PM EDT W 11.4 G 16.1 10.00 Cloudy -- 43.3 32.4 65% 37.2 NA 29.85 1010.8

Regional Weather Observation

JOHNSTOWN (KNY0)

Clear
36.1 F

SCHENECTADY AIRP (KSCH)

Cloudy
48.2 F

ALBANY (KALB)

Mostly Cloudy
42.8 F

GLENS FALLS (KGFL)

Partly Cloudy
39.2 F

BENNINGTON (KDDH)

Cloudy
42.8 F

PITTSFIELD (KPSF)

Cloudy
41.0 F
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