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

Ionia County Airport (KY70)

Lat: 42.94°NLon: 85.06°WElev: 818ft.

Fair

82°F

28°C

Humidity 74%
Wind Speed S 8 mph
Barometer 29.96 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 29 Jun 11:55 pm EDT
Extended Forecast for

3 Miles S Ionia MI

Extreme Heat Warning June 30, 12:18am until July 2, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning June 30, 12:18am until July 2, 08:00pm

    NOW until 8:00pm Thu

    Extreme Heat Warning

  • Overnight

    Low: 77 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny and hot, with a high near 95. Heat index values as high as 103. Southwest wind 11 to 15 mph, with gusts as high as 25 mph.

    High: 95 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 75. Southwest wind around 11 mph, with gusts as high as 23 mph.

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 95. Heat index values as high as 102. West southwest wind 11 to 14 mph, with gusts as high as 24 mph.

    High: 95 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 75. Southwest wind around 11 mph, with gusts as high as 22 mph.

    Low: 75 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 95.

    High: 95 °F

    Hot

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 50%.

    Low: 71 °F

    Chance
    T-storms

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny and hot, with a high near 90.

    High: 90 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 77. South southwest wind around 9 mph.
Tuesday
Sunny and hot, with a high near 95. Heat index values as high as 103. Southwest wind 11 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 75. Southwest wind around 11 mph, with gusts as high as 23 mph.
Wednesday
Sunny and hot, with a high near 95. Heat index values as high as 102. West southwest wind 11 to 14 mph, with gusts as high as 24 mph.
Wednesday Night
Clear, with a low around 75. Southwest wind around 11 mph, with gusts as high as 22 mph.
Thursday
Sunny and hot, with a high near 95.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 50%.
Friday
A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny and hot, with a high near 90.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Independence Day
A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 87.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Sunday
A chance of showers. Partly sunny, with a high near 86.
Sunday Night
A chance of showers. Partly cloudy, with a low around 65.
Monday
Mostly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Ionia MI
 42.93°N 85.05°W (Elev. 797 ft)
Last Update:
12:03 am EDT Jun 30, 2026
Forecast Valid:
12am 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