A low pressure system is moving across the Mid-Columbia, bringing wind, rain and cooler temperatures heading into Halloween, according to the National Weather Service.
The high Wednesday in the Tri-Cities could drop to the mid 50s under cloudy skies. A 40 percent chance of rain is forecast for Wednesday .
More rain is possible from Friday through early the next week in the Tri-Cities. Winds are most likely Friday evening through Halloween night. Winds are not forecast to be at their strongest while trick-or-treaters are out, but winds could still be gusty then, according to early predictions.
Temperatures will be a little warmer after Wednesday. The high on Halloween is expected to be about 69.
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Another cold front is predicted for Sunday night into Monday, dropping highs into the mid 50s again.