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Stormy weather conditions could impact Fourth of July celebrations in parts of the Midwest, South and mid-Atlantic. Much of the western third of the nation should escape any major precipitation threats.

As is typical in summer, the timing of those storms will likely prevent an all-day washout from occurring in most locations. Be sure to take shelter if you hear thunder during any outdoor activities and use The Weather Channel app to alert you of any rain or lightning strikes approaching.

Here's what you can expect this July 4:

• Wet areas: Scattered to numerous thunderstorms are expected from the mid-Atlantic and Southeast to the Ozarks and Plains. Scattered storms are also possible in the afternoon and early evening in parts of the Rockies and adjacent High Plains.
• Dry areas: Most of the Great Lakes, Northeast, Great Basin and West Coast should remain dry.
• High temperatures: The heat will continue to sear the West with 100s not just in the hottest deserts, but also in the northern Great Basin, including Boise and Salt Lake City. This heat will also intensify over the northern Plains, with near triple-digit heat possible. Most other areas will be near early-July average highs. Muggy air will spread north to the upper Mississippi Valley and the eastern Dakotas, but fairly comfortable dry air will be in place over much of the Northeast, mainly north of New York City.
• FORECAST: Boston | Houston | St. Louis | Los Angeles

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