Wipha was a tropical storm in the Gulf of Tonkin Monday evening Eastern time, the Joint Typhoon Warning Center said in its ...

The National Weather Service has warned of "searing heat and oppressive humidity that occurs during the 'dog days of summer'.

Millions of Americans are under weather advisories this week. See which major cities have heat, flood or storm advisories.

CNN is tracking extreme heat conditions for Americans each day. See where the risks are greatest — and where high temperature records might be broken.

The National Weather Service in Wilmington, Ohio, says thunderstorms heading toward Columbus bring risk of flooding in some areas.

According to the SWPC's viewline forecast, the aurora borealis may be visible over parts of Washington, Idaho, Montana, ...

While the National Hurricane Center's map is lit up with a tropical disturbance, Saturday's forecast is much more about the heat index.

Solar activity is forecasted to have a chance of minor to moderate soalr flares through Thursday July 24 with a slight chance ...

Invest 93L is likely to make landfall in Louisiana as a tropical rainstorm, with a low chance of strengthening into a ...

Invest 93L is expected to move onshore in Louisiana later today. Will it be a depression? Tropical Storm Dexter?

The weather forecast for Florida on Sunday is shaping up much the same as it did Saturday. Protect yourself from the blazing heat.

Some smoke also may be drifting over the Tri-Cities from other fires in the area, according to the National Weather Service.