Montana (MT): Current UV Index and Hourly Forecast

  • USA
  • Montana

As of 4:27 PM MDT on August 31, 2025, out of 495 cities in Montana in our database, 473 cities (96%) have a UV Index reading of Moderate, while 22 cities (4%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Jackson, MT with a reading of 4.6.

Over the next 24 hours, the highest UV Index reading in Montana is expected to be 7.4 in West Yellowstone between 1:00 PM - 2:00 PM MDT tomorrow.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Montana as of 4:27 PM MDT, August 31, 2025

Counties in Montana (MT)

Current UV Index in Major Cities in Montana (MT)

4:27 PM MDT, August 31, 2025