Most of the eastern half of the country is under heat alerts as temperatures and heat indices push into dangerous levels.

Storm systems moving across the Northern Tier will provide chances for severe thunderstorms in multiple regions today.

Mostly sunny. Hot with highs in the upper 90s. South winds around 5 mph. Heat index values up to 106. Clear. Lows in the lower 70s. South winds around 5 mph. Heat index values up to 105 early in the ...

Sunny and hot with highs ranging from the mid 80s along the lake erie shore to the lower 90s inland. Southwest winds 10 to 20 mph with gusts up to 30 mph this afternoon. Heat index values up to 100.

Mostly clear with a chance of rain. Chance of precipitation 40%. Low temperature around 77F. Dew point will be around 73F with an average humidity of 87%. Winds will be 2 mph from the NE. Partly sunny ...

Sunny. Isolated showers and thunderstorms this morning. Hot with highs in the lower 90s. Southwest winds 10 to 15 mph. Chance of rain 20 percent.

Mostly sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 86F. Dew point will be around 67F with an average humidity of 61%. Winds will be 4 mph from the NW.

Sunny hot with highs in the upper 90s. West winds 10 to 15 mph. Heat index values up to 108. Mostly clear. Humid with lows in the upper 70s. West winds 10 to 15 mph. Heat index values up to 106 early ...

Partly sunny with a slight chance of showers and thunderstorms. Highs in the upper 80s. Northeast winds 10 to 15 mph. Chance of rain 20 percent. Heat index values up to 101. Partly cloudy. Lows in the ...

Sunny. Patchy fog this morning. A chance of showers and thunderstorms this afternoon. Highs in the lower 90s. North winds around 5 mph. Chance of rain 40 percent. Mostly cloudy with a chance of ...

Sunny hot with highs around 104. West winds 5 to 10 mph. Heat index values up to 111. Partly cloudy in the evening then becoming mostly clear. Humid with lows around 80. West winds 5 to 10 mph. Heat ...

Partly sunny with a 30 percent chance of light showers and thunderstorms. Highs in the mid 80s. Southwest winds 5 to 15 mph. Partly cloudy early then becoming mostly cloudy. A 40 percent chance of ...