National Weather Service United States Department of Commerce

A stalled frontal boundary and ample monsoonal moisture will lead to flash flood potential from the Great Basin to the Great Plains tonight and Tuesday

A stalled frontal boundary will set up along the southern and central Rockies for the next couple of days providing focus for showers and thunderstorms. In addition, ample monsoonal moisture will stream in across the southwest bringing enough moisture to introduce a flash flood threat from the Great Basin and Southwest eastward across the central and southern Rockies into the adjacent Plains.
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Current Conditions

Lower Columbia Basin of Washington

Zone Forecast

  • Today Sunny. Highs 101 to 106. West wind 5 to 10 mph.
  • Tonight Partly cloudy. Lows 66 to 71. West wind 5 to 10 mph.
  • Wednesday Partly cloudy. Highs 100 to 105. Southwest wind 5 to 10 mph.
  • Wednesday Night Partly cloudy. Lows 66 to 71. Southwest wind 5 to 10 mph shifting to the west overnight.
  • Thursday Mostly sunny in the morning then becoming partly cloudy. Highs 99 to 104. Southwest wind 5 to 10 mph shifting to the west in the afternoon.
  • Thursday Night Partly cloudy. Lows 65 to 70.
  • Friday And Friday Night Partly cloudy. A slight chance of showers and thunderstorms. Highs 96 to 101. Lows 65 to 70.
  • Saturday Through Monday Partly cloudy. Highs 98 to 103. Lows 66 to 71.