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Phoenix Set for Near-80° Weekend as Western Rex Block Entrenches Warmth

A stagnant high-pressure pattern is expected to extend the warm spell into early February.

Overview

  • NWS guidance calls for highs near 80°F this weekend in Phoenix, reaching about 80 on Saturday and 81 on Sunday, just shy of daily records.
  • Forecasts indicate little to no meaningful rain or snow across Arizona through at least Feb. 5 under the persistent ridge.
  • January 2026 currently ranks as the third warmest January in Phoenix based on average temperatures.
  • Northern Arizona is forecast to reach the mid to upper 50s by the weekend, speeding snowmelt, with gusty periods possible.
  • Models suggest the Rex block could strengthen next week, with only a 5–10% chance of light precipitation if a southern low shifts north.