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

Chillicothe Ross County Airport (KRZT)

Lat: 39.44°NLon: 83.02°WElev: 725ft.

Fair

73°F

23°C

Humidity 100%
Wind Speed Calm
Barometer 30.07 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 30 Jun 2:55 am EDT
Extended Forecast for

2 Miles SSE Cynthiana OH

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

  • Overnight

    Overnight: Partly cloudy, with a low around 74. Calm wind.

    Low: 74 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 92. Heat index values as high as 101. Southwest wind 3 to 7 mph.

    High: 92 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 74. Light southwest wind.

    Low: 74 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94. Heat index values as high as 102. Calm wind becoming west around 5 mph in the afternoon.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 74. Calm wind.

    Low: 74 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Friday

    Friday: A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.

    High: 91 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 74. Calm wind.
Tuesday
Mostly sunny, with a high near 92. Heat index values as high as 101. Southwest wind 3 to 7 mph.
Tuesday Night
Mostly clear, with a low around 74. Light southwest wind.
Wednesday
Sunny, with a high near 94. Heat index values as high as 102. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
Clear, with a low around 74. Calm wind.
Thursday
Sunny, with a high near 94.
Thursday Night
Mostly clear, with a low around 75.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 73.
Independence Day
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 50%.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Cynthiana OH
 39.14°N 83.32°W (Elev. 1194 ft)
Last Update:
2:36 am EDT Jun 30, 2026
Forecast Valid:
3am 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