Weather Alert
Great Notch Reservoir Weather Warning NWS WEATHER ALERT FOR THE GREAT NOTCH RESERVOIR, NJ AREA - FLOOD WATCH Issued: 243 AM EDT Thu Aug 20 2026 Great Notch Reservoir Weather Warning

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Great Notch Reservoir, NJ Weather - Hour by Hour Forecast

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Great Notch Reservoir, NJ Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Clear. Temperature is 65°F18°C, dew point 64°F18°C, humidity 96%. Wind direction is N at 0 mph0 km/h with visibility of 10 mi16 km. Barometric pressure is 29.96 in1015 mb.
Today - Partly sunny this morning, then mostly cloudy with showers this afternoon. Highs in the lower 80s. North winds around 5 mph, becom.. Full Forecast
Tonight - Mostly cloudy. Showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Lows .. Full Forecast

Great Notch Reservoir Hourly Weather

24 Hour Forecast Scroll
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Great Notch Reservoir, NJ Hourly Weather - Clear - 5:00 AM Great Notch Reservoir, NJ Hourly Weather - Clear - 6:00 AM Great Notch Reservoir, NJ Hourly Weather - Clear - 7:00 AM Great Notch Reservoir, NJ Hourly Weather - Clear - 8:00 AM Great Notch Reservoir, NJ Hourly Weather - Clear - 9:00 AM Great Notch Reservoir, NJ Hourly Weather - Cloudy - 10:00 AM Great Notch Reservoir, NJ Hourly Weather - Cloudy - 11:00 AM Great Notch Reservoir, NJ Hourly Weather - Cloudy - 12:00 PM Great Notch Reservoir, NJ Hourly Weather - Cloudy - 1:00 PM Great Notch Reservoir, NJ Hourly Weather - Cloudy - 2:00 PM Great Notch Reservoir, NJ Hourly Weather - Cloudy - 3:00 PM Great Notch Reservoir, NJ Hourly Weather - Cloudy - 4:00 PM Great Notch Reservoir, NJ Hourly Weather - Cloudy - 5:00 PM Great Notch Reservoir, NJ Hourly Weather - Cloudy - 6:00 PM Great Notch Reservoir, NJ Hourly Weather - Cloudy - 7:00 PM Great Notch Reservoir, NJ Hourly Weather - Cloudy - 8:00 PM Great Notch Reservoir, NJ Hourly Weather - Cloudy - 9:00 PM Great Notch Reservoir, NJ Hourly Weather - Cloudy - 10:00 PM Great Notch Reservoir, NJ Hourly Weather - Cloudy - 11:00 PM Great Notch Reservoir, NJ Hourly Weather - Cloudy - 12:00 AM Great Notch Reservoir, NJ Hourly Weather - Cloudy - 1:00 AM Great Notch Reservoir, NJ Hourly Weather - Cloudy - 2:00 AM Great Notch Reservoir, NJ Hourly Weather - Cloudy - 3:00 AM Great Notch Reservoir, NJ Hourly Weather - Mostly Cloudy - 4:00 AM
Clear Clear Clear Clear Clear Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Mostly Cloudy
68°F20°C 69°F21°C 70°F21°C 71°F22°C 74°F23°C 77°F25°C 80°F27°C 80°F27°C 80°F27°C 80°F27°C 78°F26°C 75°F24°C 73°F23°C 71°F22°C 69°F21°C 67°F19°C 66°F19°C 66°F19°C 65°F18°C 65°F18°C 64°F18°C 64°F18°C 64°F18°C 63°F17°C
- - - - - - - - - - Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain - -
0% 0% 0% 0% 10% 10% 10% 10% 10% 10% 76% 76% 76% 76% 76% 76% 40% 40% 40% 40% 40% 40% 9% 9%
65°F18°C 65°F18°C 65°F18°C 65°F18°C 65°F18°C 64°F18°C 64°F18°C 63°F17°C 63°F17°C 62°F17°C 62°F17°C 63°F17°C 63°F17°C 64°F18°C 64°F18°C 65°F18°C 65°F18°C 65°F18°C 65°F18°C 65°F18°C 64°F18°C 64°F18°C 63°F17°C 63°F17°C
90% 87% 84% 81% 74% 64% 58% 56% 56% 54% 58% 66% 71% 79% 84% 93% 97% 97% 100% 100% 100% 100% 97% 100%
N ESE SW NNW NNW N N N NNW NW NNW NNW N SSW SE NNE NE ENE E E ENE ENE ENE ENE
0 mph 0 mph 1 mph 1 mph 1 mph 2 mph 2 mph 2 mph 4 mph 4 mph 4 mph 5 mph 5 mph 5 mph 6 mph 6 mph 6 mph 2 mph 2 mph 2 mph 1 mph 1 mph 1 mph 2 mph
10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 6 mi10 km 6 mi10 km 6 mi10 km 5 mi8 km 5 mi8 km 5 mi8 km 6 mi10 km 6 mi10 km 6 mi10 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km
Hour (EDT)
Weather
Clouds
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POP
Dewpoint
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POP = Probability of Precipitation. ** Indicates missing data/values from KCDW model statistics.

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Prob Precip % = Probability of Precipitation.

Great Notch Reservoir 36 Hour Forecast

POP = Probability of Precipitation. ** Indicates missing data/values from model statistics.

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