UV Index Today

Real-time solar radiation monitoring

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Heat and UV news with a practical angle. For FAQ-style answers, see the Guide.

Jul 30, 2026

Phoenix Faces 116°F This Weekend as Heat Dome Hits the Desert Southwest

Breaking weather update for July 31–August 2, 2026—Phoenix may tie 116°F records under an Extreme Heat Warning, while South Florida forecasts Extreme UV near 12.

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