Regional Outbreaks of Severe Weather Through Early Next Week; Early Season Heat Wave across the South

Active spring pattern across the center of our nation with several episodes of severe weather and heavy rainfall expected into next week. The potential for very large hail, long track tornadoes, severe wind gusts, frequent cloud to ground lightning strikes and flash flooding are in the outlook. Furthermore, dangerous early season heat wave continues for the Gulf Coast states into early next week. Read More >

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Light Rain

52°F

11°C

Humidity 89%
Wind Speed W 14 G 24 mph
Barometer 29.69 in (1005.9 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 18 May 4:56 am EDT
Extended Forecast for

3 Miles N Grand Valley PA

  • Overnight

    Overnight: A slight chance of showers.  Cloudy, with a low around 49. West wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 20%.

    Low: 49 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers before 2pm.  Cloudy, with a high near 56. West wind 11 to 13 mph, with gusts as high as 25 mph.  Chance of precipitation is 20%.

    High: 56 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Cloudy, then gradually becoming partly cloudy, with a low around 41. Northwest wind 5 to 10 mph, with gusts as high as 23 mph.

    Low: 41 °F

    Decreasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 60. Northwest wind 6 to 9 mph, with gusts as high as 20 mph.

    High: 60 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Areas of frost after 4am.  Otherwise, mostly clear, with a low around 35. North wind 3 to 6 mph.

    Low: 35 °F

    Mostly Clear
    then Areas
    Frost

  • Tuesday

    Tuesday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 47 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers.  High near 58. Chance of precipitation is 80%.

    High: 58 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers.  Low around 45. Chance of precipitation is 80%.

    Low: 45 °F

    Showers

Detailed Forecast

Overnight
A slight chance of showers. Cloudy, with a low around 49. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Sunday
A slight chance of showers before 2pm. Cloudy, with a high near 56. West wind 11 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Sunday Night
Cloudy, then gradually becoming partly cloudy, with a low around 41. Northwest wind 5 to 10 mph, with gusts as high as 23 mph.
Monday
Mostly sunny, with a high near 60. Northwest wind 6 to 9 mph, with gusts as high as 20 mph.
Monday Night
Areas of frost after 4am. Otherwise, mostly clear, with a low around 35. North wind 3 to 6 mph.
Tuesday
Mostly sunny, with a high near 64.
Tuesday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 47. Chance of precipitation is 60%.
Wednesday
Showers. High near 58. Chance of precipitation is 80%.
Wednesday Night
Showers. Low around 45. Chance of precipitation is 80%.
Thursday
Showers. High near 55. Chance of precipitation is 80%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
Friday
Showers likely. Mostly cloudy, with a high near 56. Chance of precipitation is 70%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 42. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 60. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Grand Valley PA
 41.76°N 79.55°W (Elev. 1693 ft)
4:10 am EDT May 18, 2025
5am EDT May 18, 2025-6pm EDT May 24, 2025
 
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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