Weather
Fresno, CA Rain Alert Today, Oct. 23: Sierra Could See 1 Inch
Fresno, CA – Rain chances are increasing across portions of Central California on Friday, October 23, with the Sierra Nevada facing the greatest likelihood of additional rainfall through the evening w
By Marcus Hale · 2026-10-23T21:39:39.739Z
Fresno, CA – Rain chances are increasing across portions of Central California on Friday, October 23, with the Sierra Nevada facing the greatest likelihood of additional rainfall through the evening while isolated showers develop across parts of the San Joaquin Valley.
According to the National Weather Service NWS in Hanford, rain chances remain between 60% and 80% across the Sierra Nevada, compared with significantly lower probabilities of 10% to 20% in the San Joaquin Valley.
Forecasters reported that scattered showers were beginning to develop around Fresno County and areas farther south as of 2 p.m. Friday, with the highest chances for additional precipitation expected later in the afternoon and evening.
Sierra Nevada Could Receive Up to 1 Inch of Rain
The NWS expects additional rainfall totals between 0.50 and 1 inch across portions of the Sierra Nevada through Friday evening.
Meanwhile, the San Joaquin Valley is forecast to receive considerably less precipitation, with amounts ranging from a trace to approximately 0.10 inch in locations that experience showers.
Although the overall weather risk is classified as minor, periods of moderate rainfall could occur, particularly in mountain communities.
Drivers Should Watch for Slick Roads
Rainfall could create slippery driving conditions along mountain highways and roads where water accumulates.
The NWS advises motorists to slow down in areas experiencing reduced visibility and remain alert for localized roadway flooding.
Drivers traveling between Fresno County and Sierra Nevada communities should be prepared for changing conditions, especially during the late afternoon and evening.
Thunderstorms Remain a Safety Concern
The weather service also reminds residents to seek shelter if thunder is heard, as lightning can pose a danger even when rainfall appears relatively light.
Rainfall chances are expected to remain highest in the Sierra Nevada through Friday evening, while showers across the San Joaquin Valley should remain more isolated.
Residents can monitor updated conditions and forecasts at weather.gov/Hanford.