National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Hazardous Weather Conditions

Current conditions at

Venango Regional Airport (KFKL)

Lat: 41.38°NLon: 79.86°WElev: 1540ft.

Light Rain Fog/Mist

64°F

18°C

Humidity 96%
Wind Speed Vrbl 5 mph
Barometer 29.98 in (1014.7 mb)
Dewpoint 63°F (17°C)
Visibility 1.75 mi
Last update 20 Sep 9:56 am EDT
Extended Forecast for

Knox PASimilar City Names

  • Today

    Today: Showers likely before 2pm, then isolated showers after 3pm. Patchy fog before 2pm. Otherwise, mostly cloudy, with a high near 72. North wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 72 °F

    Showers
    Likely and
    Patchy Fog

  • Tonight

    Tonight: Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 51. North wind around 7 mph.

    Low: 51 °F

    Patchy Fog

  • Monday

    Monday: A slight chance of showers between 4pm and 5pm. Mostly cloudy, with a high near 66. East wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 66 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Showers likely after 8pm. Cloudy, with a low around 50. East wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 50 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely. Cloudy, with a high near 62. East wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 62 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely. Cloudy, with a low around 48. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers. Mostly cloudy, with a high near 60. Chance of precipitation is 50%.

    High: 60 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly before 2am. Mostly cloudy, with a low around 47. Chance of precipitation is 60%.

    Low: 47 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers before 2pm. Mostly cloudy, with a high near 63. Chance of precipitation is 30%.

    High: 63 °F

    Chance
    Showers

Detailed Forecast

Today
Showers likely before 2pm, then isolated showers after 3pm. Patchy fog before 2pm. Otherwise, mostly cloudy, with a high near 72. North wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 51. North wind around 7 mph.
Monday
A slight chance of showers between 4pm and 5pm. Mostly cloudy, with a high near 66. East wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Monday Night
Showers likely after 8pm. Cloudy, with a low around 50. East wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Showers likely. Cloudy, with a high near 62. East wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Showers likely. Cloudy, with a low around 48. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A chance of showers. Mostly cloudy, with a high near 60. Chance of precipitation is 50%.
Wednesday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 47. Chance of precipitation is 60%.
Thursday
A chance of showers before 2pm. Mostly cloudy, with a high near 63. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 46.
Saturday
Mostly sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Knox PASimilar City Names
 41.24°N 79.54°W (Elev. 1460 ft)
Last Update:
7:02 am EDT Sep 20, 2026
Forecast Valid:
10am EDT Sep 20, 2026-6pm EDT Sep 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation