Point Forecast: Northumberland PA
 40.89N 76.79W (Elev. 147 m)
Last Update: 8:10 am EDT Jul 15, 2025
Tabular Forecast
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Weather ElementsFire WeatherAviation Weather
Temperature (°C)
Dewpoint (°C)
Heat Index (°C)

Surface Wind  
Sky Cover (%)
Precipitation Potential (%)
Relative Humidity (%)

Rain
Thunder
Fog
Mixing Height  
Trans. Wind  
20ft Wind  
Vent Rate (x1000 mph-m)
Davis Stability Index
Atmospheric Dispersion Index
Low Visibility Occurrence Risk Index
Ceiling Height
Visibility
Thunder Potential

48-Hour Period Starting:       Back 2 Days  

Date07/1507/16
Hour (EDT)101112131415161718192021222300010203040506070809
Temperature (°C)262729303131313231312927262524232323222222222426
Dewpoint (°C)222223232222222222222223232322222222222221222323
Heat Index (°C)2629323435353535343432302625242426
Surface Wind (mph)111122222111000000011112
Wind DirNNENEEESESWSWSSSSSSSESSSESESESESESS
Gust
Sky Cover (%)523222151212121619211431392744444059555560566056
Precipitation Potential (%)01559881211126555567668763434
Relative Humidity (%)8274706559595956575967778588909390939710097979085
Rain--------------------------------------------ChcChc
Thunder------------------------------------------------

Date07/17
Hour (EDT)101112131415161718192021222300010203040506070809
Temperature (°C)282929303030292928282726252423232322222222232425
Dewpoint (°C)242424242424232323232323232323222222222222222323
Heat Index (°C)32333435353534333231302625242425
Surface Wind (mph)223355553321111222222223
Wind DirSSSSSSSSSSSSSSSSSSSSSWSWSWSW
Gust
Sky Cover (%)647277838888888888888482807879808180787773686461
Precipitation Potential (%)343434348282828282825959595959592020202020203131
Relative Humidity (%)7974727070707072747779858894979797100979797979490
RainChcChcChcChcOcnlOcnlOcnlOcnlOcnlOcnlLklyLklyLklyLklyLklyLklySChcSChcSChcSChcSChcSChcChcChc
Thunder--SChcSChcSChcLklyLklyLklyLklyLklyLklyChcChcChcSChcSChcSChc----------------

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