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Heffernan Weather Warning NWS WEATHER ALERT FOR THE HEFFERNAN, PA AREA - FLOOD WATCH Issued: 139 AM EDT Thu Aug 20 2026 Heffernan Weather Warning

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Heffernan, PA Weather - Hour by Hour Forecast

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Heffernan, PA Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Mostly Cloudy. Temperature is 69°F21°C, dew point 69°F21°C, humidity 99%. Wind direction is ENE at 5 mph8 km/h with visibility of 10 mi16 km. Barometric pressure is 30 in1016 mb.
Today - Mostly sunny with a slight chance of showers and thunderstorms this morning, then mostly cloudy with showers and thunderstorms thi.. Full Forecast
Tonight - Mostly cloudy. Showers and thunderstorms likely in the evening. Some thunderstorms May produce gusty winds and heavy rainfall in t.. Full Forecast

Heffernan Hourly Weather

24 Hour Forecast Scroll
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Heffernan, PA Hourly Weather - Mostly Cloudy - 8:00 AM Heffernan, PA Hourly Weather - Mostly Cloudy - 9:00 AM Heffernan, PA Hourly Weather - Cloudy - 10:00 AM Heffernan, PA Hourly Weather - Cloudy - 11:00 AM Heffernan, PA Hourly Weather - Cloudy - 12:00 PM Heffernan, PA Hourly Weather - Cloudy - 1:00 PM Heffernan, PA Hourly Weather - Cloudy - 2:00 PM Heffernan, PA Hourly Weather - Cloudy - 3:00 PM Heffernan, PA Hourly Weather - Cloudy - 4:00 PM Heffernan, PA Hourly Weather - Cloudy - 5:00 PM Heffernan, PA Hourly Weather - Cloudy - 6:00 PM Heffernan, PA Hourly Weather - Cloudy - 7:00 PM Heffernan, PA Hourly Weather - Cloudy - 8:00 PM Heffernan, PA Hourly Weather - Cloudy - 9:00 PM Heffernan, PA Hourly Weather - Cloudy - 10:00 PM Heffernan, PA Hourly Weather - Cloudy - 11:00 PM Heffernan, PA Hourly Weather - Cloudy - 12:00 AM Heffernan, PA Hourly Weather - Cloudy - 1:00 AM Heffernan, PA Hourly Weather - Cloudy - 2:00 AM Heffernan, PA Hourly Weather - Cloudy - 3:00 AM Heffernan, PA Hourly Weather - Cloudy - 4:00 AM Heffernan, PA Hourly Weather - Cloudy - 5:00 AM Heffernan, PA Hourly Weather - Cloudy - 6:00 AM Heffernan, PA Hourly Weather - Cloudy - 7:00 AM
Mostly Cloudy Mostly Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
70°F21°C 72°F22°C 75°F24°C 77°F25°C 77°F25°C 77°F25°C 77°F25°C 76°F24°C 74°F23°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 63°F17°C 63°F17°C 62°F17°C 63°F17°C 64°F18°C
Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain - - - - -
29% 29% 29% 29% 29% 29% 29% 88% 88% 88% 88% 88% 88% 36% 36% 36% 36% 36% 36% 9% 9% 9% 9% 9%
67°F19°C 67°F19°C 68°F20°C 68°F20°C 68°F20°C 68°F20°C 68°F20°C 68°F20°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 66°F19°C 66°F19°C 65°F18°C 64°F18°C 64°F18°C 63°F17°C 62°F17°C 62°F17°C 61°F16°C 61°F16°C 62°F17°C
90% 84% 79% 74% 74% 74% 74% 76% 79% 82% 87% 93% 100% 100% 100% 100% 97% 100% 97% 97% 97% 97% 93% 93%
N NE E SE SSE S S SE E NE NE NE NE NE NE NE NE NE NNE NNE N N NNE NNE
0 mph 0 mph 1 mph 1 mph 1 mph 4 mph 4 mph 4 mph 4 mph 4 mph 4 mph 6 mph 6 mph 6 mph 4 mph 4 mph 4 mph 2 mph 2 mph 2 mph 2 mph 2 mph 2 mph 3 mph
5 mi8 km 6 mi10 km 6 mi10 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 6 mi10 km 6 mi10 km 5 mi8 km 5 mi8 km 5 mi8 km 5 mi8 km 5 mi8 km 5 mi8 km 5 mi8 km 5 mi8 km 5 mi8 km 5 mi8 km 6 mi10 km 6 mi10 km 10 mi16 km 10 mi16 km 10 mi16 km
Hour (EDT)
Weather
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POP
Dewpoint
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POP = Probability of Precipitation. ** Indicates missing data/values from KLOM model statistics.

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Prob Precip % = Probability of Precipitation.

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

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