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Althom, Pennsylvania Weather Forecast
Althom, Pennsylvania Weather
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Weather Forecast for Althom, Pennsylvania : Warren County
Issued: 1:05 pm EST Nov 17, 2025 Latitude: 41.7533933 Longitude: -79.3028249 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
20% chance of snow on This Afternoon Mostly Cloudy on Tonight 30% chance of snow on Tuesday Mostly Sunny on Wednesday Mostly Cloudy on Thursday 60% chance of rain on Friday 40% chance of on Saturday Partly Sunny on Sunday Partly Sunny on Monday
High: 38°F Low: 24°F High: 41°F High: 45°F High: 49°F High: 53°F High: 45°F High: 47°F High: 50°F
Low: 28°F Low: 29°F Low: 38°F Low: 31°F Low: 28°F Low: 31°F  
Snow Mostly Cloudy Snow Mostly Sunny Mostly Cloudy Rain Partly Sunny Partly Sunny Partly Sunny
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Current Conditions at
JAMESTOWN - (KJHW)
34°
Feels like 25°F
Cloudy
Light Snow
as of 3:14 PM EST
Rel. Humidity: 74%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 29.92 in.
Flight Rule: MVFR
Wind Data
12 MPH
300° Northwest
Cloud Level(s): Broken at 2200ft, Solid Overcast at 3000ft
20% chance of snow This Afternoon This Afternoon... A slight chance of snow showers. Mostly cloudy, with a high near 38. West wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 24. West wind around 6 mph becoming calm in the evening.
30% chance of snow Tuesday Tuesday... A chance of snow showers after 1pm, mixing with rain after 4pm. Mostly cloudy, with a high near 41. Calm wind becoming southwest around 5 mph. Chance of precipitation is 30%.
30% chance of rain & snow Tuesday Night Tuesday Night... A chance of rain and snow showers before 10pm, then a chance of rain showers between 10pm and 1am. Cloudy, then gradually becoming partly cloudy, with a low around 28. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 45. Calm wind.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 29.
Mostly Cloudy on Thursday Thursday... Mostly cloudy, with a high near 49.
70% chance of rain Thursday Night Thursday Night... Showers likely, mainly after 1am. Cloudy, with a low around 38. Chance of precipitation is 70%.
60% chance of rain Friday Friday... Showers likely, mainly before 1pm. Mostly cloudy, with a high near 53. Chance of precipitation is 60%.
50% chance of rain Friday Night Friday Night... A chance of showers. Mostly cloudy, with a low around 31. Chance of precipitation is 50%.
40% chance of Saturday Saturday... A chance of showers. Partly sunny, with a high near 45. Chance of precipitation is 40%.
Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 28.
Partly Sunny on Sunday Sunday... Partly sunny, with a high near 47.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 31.
Partly Sunny on Monday Monday... Partly sunny, with a high near 50.
Sun Almanac for Althom, Pennsylvania
Sunrise: 07:10 AM
Sunset: 4:55 PM
Civil Sunrise:06:40 AM
Civil Sunset: 5:25 PM
Nautical Sunrise: 06:06 AM
Nautical Sunset: 5:59 PM
Astro Sunrise: 05:33 AM
Astro Sunset: 6:32 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.