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Temperatures that are 20 to 40 degrees above average for this time of year will be common from the Southwest into the Great Plains.

Two powerful storms have hit Hawaii over the past week, so the recent rain landed on ground that was already saturated.

The community of Martinez Lake in Arizona hit a jaw-dropping 110 degrees on Thursday -- the highest March temperature in U.S. recorded history.

In Maui, so-called kona storms are hitting the areas where wildfires have grown more frequent and intense, creating a feedback loop of environmental consequences.

The highly anticipated Artemis II mission is set to send four astronauts around the moon on a 10-day spaceflight.

Some residents in Ohio and Pennsylvania saw a fireball streaking through the sky. NASA says it was a meteor fracturing into small pieces. NBC News' Sam Brock has the story.

Video footage showed a fireball with a long tail hurtling across a cloudless sky in the Pittsburgh area.

The universities that oversee the National Center for Atmospheric Research allege in the suit that the center is "collateral damage" in the Trump administration's ongoing feud with Colorado Gov. Jared Polis.

Arizona and Nevada are likely to see temperatures in the triple digits. New records could be set in San Francisco, Los Angeles, Tucson, Phoenix, Las Vegas, Albuquerque and Denver.

The satellite, launched 14 years ago, will make an uncontrolled re-entry Tuesday evening. NASA puts the risk of harm to anyone on Earth at "approximately 1 in 4,200."