Dangerous Heat Builds and Expands; Critical Fire Weather for the Southwest; Severe Thunderstorms for Plains and Midwest

Dangerous to record breaking heat will build across the center of the nation and slowly build eastward this week. Wildfire conditions remain critical for the Southwest and portions of the Great Basin through Monday. For the northern Plains and upper Midwest, severe thunderstorms with the potential for large to very large hail and severe winds are the primary hazards. Read More >

Hazardous Weather Conditions

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Overcast

66°F

19°C

Humidity 100%
Wind Speed Calm
Barometer 30.09 in (1018.5 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 29 Jun 2:56 am EDT
Extended Forecast for

4 Miles ENE Steamburg NY

  • Overnight

    Overnight: Partly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 86. Calm wind becoming southeast around 5 mph.

    High: 86 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66. Light and variable wind.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 2pm.  Partly sunny and hot, with a high near 90. Heat index values as high as 96. Southwest wind 5 to 10 mph.  Chance of precipitation is 30%.

    High: 90 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 71. Light southwest wind.

    Low: 71 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny and hot, with a high near 92. West wind 5 to 8 mph.

    High: 92 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 70. West wind around 5 mph becoming calm  in the evening.

    Low: 70 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 92. West wind 3 to 8 mph.

    High: 92 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 61. Calm wind.
Monday
Mostly sunny, with a high near 86. Calm wind becoming southeast around 5 mph.
Monday Night
Partly cloudy, with a low around 66. Light and variable wind.
Tuesday
A chance of showers and thunderstorms before 2pm. Partly sunny and hot, with a high near 90. Heat index values as high as 96. Southwest wind 5 to 10 mph. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 71. Light southwest wind.
Wednesday
Sunny and hot, with a high near 92. West wind 5 to 8 mph.
Wednesday Night
Mostly clear, with a low around 70. West wind around 5 mph becoming calm in the evening.
Thursday
Sunny and hot, with a high near 92. West wind 3 to 8 mph.
Thursday Night
Mostly clear, with a low around 71.
Friday
Sunny, with a high near 88.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
Independence Day
A chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Steamburg NY
 42.16°N 78.81°W (Elev. 1601 ft)
2:22 am EDT Jun 29, 2026
3am EDT Jun 29, 2026-6pm EDT Jul 5, 2026
 
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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