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)

Mostly Cloudy

58.5 F
Humidity:55%
Wind Speed: 3.4 mph
Barometer:29.91 in
Dewpoint:42.4 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 29 2026, 10:35 AM EDT
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5-Day Forecast — Rotterdam, NY

Wednesday

High 69 °F
Chance of Rain
Wednesday
Night
Low 46 °F
Rain
Thursday

High 55 °F
Rain Showers
Thursday
Night
Low 37 °F
Partly Cloudy
Friday

High 55 °F
Slight Chance of Rain Showers
Friday
Night
Low 35 °F
Partly Cloudy
Saturday

High 53 °F
Mostly Cloudy
Saturday
Night
Low 35 °F
Mostly Cloudy
Sunday

High 53 °F
Mostly Cloudy

Detailed Forecast — Rotterdam, NY

Wednesday
Chance of Rain. High near 69°F. Wind 3 to 12 mph, with gusts as high as 21 mph.
Wednesday Night
Rain. Low around 46°F. Wind 6 to 8 mph, with gusts as high as 21 mph.
Thursday
Rain Showers. High near 55°F. Wind 6 to 13 mph, with gusts as high as 23 mph.
Thursday Night
Partly Cloudy. Low around 37°F. Wind 8 to 10 mph, with gusts as high as 20 mph.
Friday
Slight Chance of Rain Showers. High near 55°F. Wind 10 to 13 mph, with gusts as high as 23 mph.
Friday Night
Partly Cloudy. Low around 35°F. Wind 5 to 7 mph, with gusts as high as 15 mph.
Saturday
Mostly Cloudy. High near 53°F. Wind 7 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Mostly Cloudy. Low around 35°F. Wind 3 to 6 mph, with gusts as high as 12 mph.
Sunday
Mostly Cloudy. High near 53°F. Wind 6 to 14 mph, with gusts as high as 22 mph.
Sunday Night
Partly Cloudy. Low around 37°F. Wind 2 to 6 mph, with gusts as high as 10 mph.
Monday
Chance of Thunderstorms. High near 57°F. Wind 2 to 9 mph, with gusts as high as 16 mph.
Monday Night
Chance of Rain. Low around 39°F. Wind 2 to 5 mph, with gusts as high as 9 mph.
Tuesday
Chance of Rain Showers. High near 62°F. Wind 2 to 8 mph, with gusts as high as 14 mph.
NY Radar
Current Radar • NY
Day 1 Outlook • April 29, 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)
10:35 AM EDT 3.4 10.00 Mostly Cloudy -- 58.5 42.4 55% NA NA 29.91 1012.9
10:15 AM EDT S 4.7 10.00 Mostly Cloudy -- 56.8 41.4 56% NA NA 29.92 1013.2
09:55 AM EDT SE 3.4 10.00 Cloudy -- 55.9 40.8 57% NA NA 29.94 1013.6
09:35 AM EDT 3.4 10.00 Mostly Cloudy -- 55.6 40.6 57% NA NA 29.94 1013.9
09:15 AM EDT SE 3.4 10.00 Clear -- 54.9 39.7 57% NA NA 29.95 1014.2
08:55 AM EDT 6.9 10.00 Clear -- 53.8 39.6 58% NA NA 29.94 1013.9
08:35 AM EDT E 9.2 10.00 Partly Cloudy -- 52.0 38.8 61% NA NA 29.95 1014.2
08:15 AM EDT E 5.8 10.00 Cloudy -- 51.1 38.5 62% NA NA 29.98 1015.2
07:55 AM EDT E 4.7 10.00 Mostly Cloudy -- 50.2 37.9 63% NA NA 29.99 1015.6
07:35 AM EDT E 6.9 10.00 Cloudy -- 48.7 37.6 65% 45.7 NA 29.98 1015.2
07:15 AM EDT E 8.1 10.00 Cloudy -- 48.7 38.1 67% 45.1 NA 29.98 1015.2
06:55 AM EDT 8.1 10.00 Cloudy -- 48.9 38.1 66% 45.5 NA 29.97 1014.9
06:35 AM EDT 6.9 10.00 Cloudy -- 49.3 38.3 66% 46.4 NA 29.98 1015.2
06:15 AM EDT 5.8 10.00 Cloudy -- 49.8 38.7 65% 47.5 NA 29.98 1015.2
05:55 AM EDT 4.7 10.00 Cloudy -- 50.0 38.3 64% NA NA 29.97 1014.9
05:35 AM EDT 5.8 10.00 Cloudy -- 50.0 38.3 64% NA NA 29.96 1014.6
05:15 AM EDT E 4.7 10.00 Cloudy -- 50.2 38.1 63% NA NA 29.97 1014.9
04:55 AM EDT 4.7 10.00 Cloudy -- 50.2 37.8 62% NA NA 29.97 1014.9
04:35 AM EDT 3.4 10.00 Cloudy -- 50.4 37.4 61% NA NA 29.96 1014.6
04:15 AM EDT 3.4 10.00 Cloudy -- 50.4 37.2 61% NA NA 29.96 1014.6
03:55 AM EDT E 4.7 10.00 Cloudy -- 50.9 36.7 58% NA NA 29.96 1014.6
03:35 AM EDT 0.0 10.00 Cloudy -- 51.3 35.8 55% NA NA 29.96 1014.6
03:15 AM EDT E 3.4 10.00 Cloudy -- 51.1 36.1 56% NA NA 29.97 1014.9
02:55 AM EDT 0.0 10.00 Cloudy -- 51.8 35.8 54% NA NA 29.97 1014.9

Regional Weather Observation

JOHNSTOWN (KNY0)

Mostly Cloudy
58.5 F

SCHENECTADY AIRP (KSCH)

Cloudy
59.0 F

ALBANY (KALB)

Mostly Cloudy
60.8 F

GLENS FALLS (KGFL)

Mostly Clear
60.8 F

BENNINGTON (KDDH)

Clear
60.8 F

PITTSFIELD (KPSF)

Clear
60.8 F
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