San Bernardino County, CA

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From the Forecaster

Halloween Outlook

Created by the NWS Las Vegas WFO

Heading out for Halloween? You may want to keep an umbrella handy! Rain chances increase Saturday evening and continue into Sunday. Temperatures will run 4 to 8 degrees below normal this weekend before drier weather returns early next week.

NWS Las Vegas Halloween forecast graphic showing temperatures 4 to 8°F below normal this weekend and early next week. Rain chances increase Halloween evening and continue Sunday before drier weather returns early next week. Las Vegas forecast highs/lows: Thursday 76/58°F, Friday 73/59°F, Saturday 71/58°F, Sunday 70/60°F, Monday 69/55°F, and Tuesday 70/55°F. Daily rain chances are 0% Thursday, 10% Friday, 40% Saturday, 70% Sunday, 5% Monday, and 0% Tuesday. A regional map shows Saturday evening rain chances ranging from around 20% to 70%, depending on location.

Friday Flood Watch

Created by the NWS Phoenix WFO

A Flood Watch has been issued for Maricopa County, Northwestern Pinal County, and Southern Gila County on Friday. Showers and thunderstorms will develop across portions of Southern and Central AZ starting early in the morning, with the highest rain rates and best coverage of showers and storms likely during the afternoon into the early evening. Not all areas will see heavy rain, and there remains uncertainty in rainfall totals, but isolated/embedded thunderstorm activity will result in locally heavy rainfall with rates upwards of 1-2" per hour leading to an enhanced potential for flash flooding.

Graphic showing a map of areas under a Flood Watch on Friday. Along the bottom is a list of precautions, and to the right of the map are details on the timing of different segments of the Flood Watch as well as forecast rain totals.

Coastal Flood Warning and Advisory

Created by the NWS San Diego WFO

Coastal Flood Warning in effect through midday Thursday, and Coastal Flood Advisory in effect from Thursday afternoon through Friday afternoon. Coastal flooding is expected during each morning high tide through Friday.

Coastal Flood Warning in effect through midday Thursday, and Coastal Flood Advisory in effect from Thursday afternoon through Friday afternoon.

Seven-day Weather Risk Overview

The graphic shows the daily risk summary for 7 days. Daily risk is based on highest risk factor for that day.

risk level
out of 10
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table legend
No risk
Low risk
High risk

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