Grant County, WA: Current UV Index and Hourly Forecast

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As of 4:59 PM PDT on July 1, 2026, all 25 cities in Grant County, WA in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Quincy, WA with a reading of 4.4.

Over the next 24 hours, the highest UV Index reading in Grant County, WA is expected to be 7.6 in Ephrata between 1:00 PM - 2:00 PM PDT tomorrow.

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Current UV Index in Cities in Grant County, WA

• Banks Lake South - 4.3
• Beverly - 4.4
• Cascade Valley - 4.3
• Coulee City - 4.3
• Crescent Bar - 4.4
• Desert Aire - 4.4
• Electric City - 4.3
• Ephrata - 4.3
• George - 4.3
• Grand Coulee - 4.3
• Hartline - 4.3
• Krupp - 4.2
• Lakeview - 4.3
• Marine View - 4.2
• Mattawa - 4.4
• Moses Lake - 4.3
• Moses Lake North - 4.3
• Quincy - 4.4
• Royal City - 4.3
• Schwana - 4.4
• Soap Lake - 4.3
• Sunland Estates - 4.4
• Warden - 4.2
• Wheeler - 4.3
• Wilson Creek - 4.2