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

Dangerous Heat in the Central and Eastern U.S.; Critical Fire Weather in the Great Basin and Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue Tuesday across portions of the Four Corners and Great Basin, as dry conditions and gusty winds persist. Read More >

Hazardous Weather Conditions

Current conditions at

Lancaster, Fairfield County Airport (KLHQ)

Lat: 39.76°NLon: 82.66°WElev: 866ft.

Fair

71°F

22°C

Humidity 100%
Wind Speed Calm
Barometer 30.08 in (1017.8 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 30 Jun 5:53 am EDT
Extended Forecast for

Lancaster OH

Extreme Heat Warning June 30, 12:00pm until July 2, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Today

    Today: Patchy fog before 8am. Otherwise, sunny, with a high near 93. Heat index values as high as 105. Calm wind becoming southwest 5 to 8 mph in the morning.

    High: 93 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 74. Southwest wind around 5 mph becoming calm in the evening.

    Low: 74 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96. Heat index values as high as 106. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 96 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 74. Light and variable wind.

    Low: 74 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 96. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 96 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Chance of precipitation is 30%.

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    T-storms then
    Partly Cloudy

  • Independence Day

    Independence Day: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 40%.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Patchy fog before 8am. Otherwise, sunny, with a high near 93. Heat index values as high as 105. Calm wind becoming southwest 5 to 8 mph in the morning.
Tonight
Mostly clear, with a low around 74. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 96. Heat index values as high as 106. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night
Clear, with a low around 74. Light and variable wind.
Thursday
Sunny, with a high near 96. Calm wind becoming southwest around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 76.
Friday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
Independence Day
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 50%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lancaster OH
 39.71°N 82.6°W (Elev. 899 ft)
Last Update:
6:05 am EDT Jun 30, 2026
Forecast Valid:
6am EDT Jun 30, 2026-6pm EDT Jul 6, 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