Grant County, WA: Current UV Index and Hourly Forecast

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As of 12:25 PM PDT on April 1, 2025, out of 25 cities in Grant County, WA in our database, 14 cities (56%) have a UV Index reading of Moderate, while 11 cities (44%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Mattawa, WA with a reading of 3.5.

Over the next 24 hours, the highest UV Index reading in Grant County, WA is expected to be 3.7 in Moses Lake between 1:00 PM - 2:00 PM PDT today.

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Current UV Index in Cities in Grant County, WA

• Banks Lake South - 2.4
• Beverly - 3.5
• Cascade Valley - 3.1
• Coulee City - 1.8
• Crescent Bar - 2.7
• Desert Aire - 3.5
• Electric City - 1
• Ephrata - 3
• George - 3.3
• Grand Coulee - 1
• Hartline - 1.9
• Krupp - 2.2
• Lakeview - 2.2
• Marine View - 2.3
• Mattawa - 3.5
• Moses Lake - 3.1
• Moses Lake North - 3.1
• Quincy - 2.5
• Royal City - 2.9
• Schwana - 3.5
• Soap Lake - 2.2
• Sunland Estates - 3.4
• Warden - 1.8
• Wheeler - 3.1
• Wilson Creek - 2.2