Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Central U.S. and Northeast; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Severe thunderstorms are forecast from parts of the central High Plains into the Upper Midwest, and across parts of the Northeast. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

Hazardous Weather Conditions

Extreme Heat Warning until July 2, 08:00 PM EDT

Current conditions at

Mason, Mason Jewett Field Airport (KTEW)

Lat: 42.57°NLon: 84.42°WElev: 919ft.

Fair

91°F

33°C

Humidity	53%
Wind Speed	SW 6 mph
Barometer	29.90 in
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	98°F (37°C)
Last update	30 Jun 7:15 pm EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Onondaga MI

Extreme Heat Warning June 30, 07:27pm until July 2, 08:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning June 30, 07:27pm until July 2, 08:00pm
NOW until 8:00pm Thu
Extreme Heat Warning
Tonight
Low: 74 °F
Mostly Clear
Wednesday
High: 96 °F
Hot
Wednesday Night
Low: 75 °F
Clear
Thursday
High: 96 °F
Hot
Thursday Night
Low: 71 °F
Mostly Clear
then Slight
Chance
T-storms
Friday
High: 93 °F
Sunny then
Showers
Likely
Friday Night
Low: 69 °F
Showers
Likely
Independence Day
High: 87 °F
Chance
T-storms then
Showers
Likely

Detailed Forecast

Tonight

Mostly clear, with a low around 74. Southwest wind 7 to 10 mph, with gusts as high as 23 mph.

Wednesday

Sunny and hot, with a high near 96. Heat index values as high as 105. West southwest wind 8 to 11 mph, with gusts as high as 23 mph.

Wednesday Night

Clear, with a low around 75. Southwest wind 7 to 9 mph, with gusts as high as 22 mph.

Thursday

Sunny and hot, with a high near 96. Heat index values as high as 105. West southwest wind 8 to 13 mph, with gusts as high as 24 mph.

Thursday Night

A 20 percent chance of showers and thunderstorms after 2am. Mostly clear, with a low around 71. West southwest wind 5 to 7 mph, with gusts as high as 20 mph.

Friday

Showers likely and possibly a thunderstorm after 2pm. Mostly sunny and hot, with a high near 93. Chance of precipitation is 60%.

Friday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Partly cloudy, with a low around 69. Chance of precipitation is 60%.

Independence Day

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 87.

Saturday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 65.

Sunday

Showers likely, with thunderstorms also possible after 2pm. Partly sunny, with a high near 85.

Sunday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 64.

Monday

Mostly sunny, with a high near 85.

Monday Night

Partly cloudy, with a low around 63.

Tuesday

Mostly sunny, with a high near 86.