Live · updated 1 min ago
1 active alert for Hesperia, California right now: a Wind Advisory.
41 in the last 30 days 225 in 12 months (since Aug 30) most common: Wind Advisory Get alerts on your phone →
NWS issues alerts by county; Hesperia is in San Bernardino County. Refreshed every few minutes; times in PDT.
Area: San Bernardino County Mountains
* WHAT...Southwest winds 20 to 30 mph with gusts to 50 mph expected. * WHERE...San Bernardino County Mountains. * WHEN.... * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
What it means: Sustained winds of 30 mph or more, or gusts to 45 mph, are expected. Use caution driving high-profile vehicles.
Full alert with map and forecast →Forecast Bar watches the official alert feeds around the clock, NWS in the United States and Environment Canada in Canada, and pushes every warning, watch and advisory for your saved locations the moment it is issued. This page is the same data, a few minutes later.
Where
Alert polygons are NWS's own. Forecast Bar's radar shows the same warnings over live precipitation, with future radar and lightning. See the radar.
Last 30 days
| Alert | Issued | Ended | Issued by |
|---|---|---|---|
| Flood Advisory | 8:08 AM | 8:45 AM | San Diego CA |
| Flood Advisory | 6:40 AM | 8:45 AM | San Diego CA |
| Flood Advisory | 6:36 AM | 6:45 AM | Las Vegas NV |
| Wind Advisory | 5:53 AM | 6:00 AM | San Diego CA |
| Flood Advisory | 4:34 AM | 6:45 AM | Las Vegas NV |
| Flood Advisory | 1:44 AM | 6:45 AM | Las Vegas NV |
| Wind Advisory | 12:14 AM | 6:00 PM | San Diego CA |
| Wind Advisory | 12:14 AM | 6:00 AM | San Diego CA |
| Wind Advisory | Oct 21, 10:30 PM | 6:00 AM | San Diego CA |
| Flash Flood Warning | Oct 21, 7:39 PM | Oct 21, 7:45 PM | Las Vegas NV |
| Flash Flood Warning | Oct 21, 5:50 PM | Oct 21, 7:45 PM | Las Vegas NV |
| Special Weather Statement | Oct 21, 5:49 PM | Oct 21, 6:30 PM | San Diego CA |
| Flash Flood Warning | Oct 21, 4:46 PM | Oct 21, 7:45 PM | Las Vegas NV |
| High Wind Warning | Oct 17, 11:53 AM | Oct 17, 8:00 PM | San Diego CA |
| High Wind Warning | Oct 17, 4:13 AM | Oct 17, 8:00 PM | San Diego CA |
| High Wind Warning | Oct 16, 8:41 PM | Oct 17, 8:00 PM | San Diego CA |
| High Wind Warning | Oct 16, 12:54 PM | Oct 17, 8:00 PM | San Diego CA |
| High Wind Warning | Oct 16, 12:54 PM | Oct 16, 8:00 PM | San Diego CA |
| Wind Advisory | Oct 16, 10:45 AM | Oct 16, 11:00 AM | Las Vegas NV |
| High Wind Warning | Oct 16, 5:10 AM | Oct 16, 8:00 PM | San Diego CA |
| High Wind Warning | Oct 16, 5:10 AM | Oct 17, 8:00 PM | San Diego CA |
| High Wind Warning | Oct 15, 1:39 PM | Oct 16, 8:00 PM | San Diego CA |
| High Wind Warning | Oct 15, 1:39 PM | Oct 17, 8:00 PM | San Diego CA |
| Wind Advisory | Oct 15, 8:12 AM | Oct 16, 11:00 AM | Las Vegas NV |
| High Wind Warning | Oct 15, 5:33 AM | Oct 16, 8:00 PM | San Diego CA |
| High Wind Warning | Oct 15, 5:33 AM | Oct 17, 8:00 PM | San Diego CA |
| Wind Advisory | Oct 15, 2:55 AM | Oct 16, 11:00 AM | Las Vegas NV |
| High Wind Warning | Oct 14, 6:39 PM | Oct 17, 8:00 PM | San Diego CA |
| High Wind Warning | Oct 14, 6:39 PM | Oct 16, 8:00 PM | San Diego CA |
| Wind Advisory | Oct 14, 1:16 PM | Oct 16, 11:00 AM | Las Vegas NV |
| High Wind Warning | Oct 14, 11:16 AM | Oct 17, 8:00 PM | San Diego CA |
| High Wind Warning | Oct 14, 11:16 AM | Oct 16, 8:00 PM | San Diego CA |
| Wind Advisory | Oct 14, 7:49 AM | Oct 16, 11:00 AM | Las Vegas NV |
| High Wind Watch | Oct 14, 1:53 AM | Oct 16, 8:00 PM | San Diego CA |
| High Wind Watch | Oct 14, 1:53 AM | Oct 16, 8:00 PM | San Diego CA |
| Wind Advisory | Oct 13, 11:30 PM | Oct 16, 11:00 AM | Las Vegas NV |
| High Wind Watch | Oct 13, 9:25 PM | Oct 16, 8:00 PM | San Diego CA |
| High Wind Watch | Oct 13, 9:25 PM | Oct 16, 8:00 PM | San Diego CA |
| High Wind Watch | Oct 13, 11:11 AM | Oct 16, 8:00 PM | San Diego CA |
| High Wind Watch | Oct 13, 11:11 AM | Oct 16, 8:00 PM | San Diego CA |
Pattern
Every alert that named San Bernardino County in the last 12 months, by type. Records begin August 30, 2026, so this fills in over the year.
Plain English
A warning means the hazard is happening or about to; a watch means conditions favour it; an advisory is a lesser hazard still worth planning around.
Sustained winds of 30 mph or more, or gusts to 45 mph, are expected. Use caution driving high-profile vehicles.
Minor flooding of streets, streams or low-lying areas is expected. Expect ponding on roads and use caution when driving.
Flash flooding is occurring or imminent. Move to higher ground; never drive into water covering a road.
A heads-up about conditions that do not meet warning or advisory criteria but still deserve attention, such as a strong storm, patchy fog or a brief burst of snow.
Sustained winds of 40 mph or more, or gusts of 58 mph or more, are expected. Secure loose objects and expect downed trees and power lines.
Damaging winds are possible. Secure loose objects ahead of time.
Extremely dangerous heat. Avoid strenuous activity, stay in cool spaces and never leave people or pets in a vehicle.
Conditions are favourable for flooding. Have a plan in case a warning is issued.
A storm with hail of 1 inch or larger, winds of 58 mph or more, or both, is occurring or imminent. Move indoors and away from windows.
Heat index values high enough to cause heat illness with prolonged exposure. Drink water, stay in air conditioning and check on neighbours.
Extremely dangerous heat is possible. Make plans to stay cool and hydrated.
Nearby
Cities
Neighbouring counties in California
Questions
Install Forecast Bar, add Hesperia as a location, and turn on severe weather alerts. Every NWS warning, watch and advisory for San Bernardino County then arrives as a push notification at the moment of issue, with Critical Alerts available for the most dangerous warnings. Forecast Bar also runs on iPad, Apple Watch, Mac and Apple TV.
From the National Weather Service alert feed (api.weather.gov). NWS issues alerts by county and by forecast zone; this page lists every product that names San Bernardino County, the county Hesperia sits in. Forecast Bar checks the feed continuously and this page refreshes within a few minutes of a change.
A warning means the hazard is occurring, imminent or very likely: act now. A watch means conditions are favourable for it to develop: prepare and stay informed. An advisory covers a hazard that is less serious than a warning but can still cause real inconvenience or danger if you are not ready for it.
Yes. /weather-alerts/ca/hesperia.json returns the active alerts, the last 30 days and the 12-month counts for Hesperia, refreshed every minute. Please cache responses and credit National Weather Service as the source.
Add Hesperia in Forecast Bar and every NWS warning, watch and advisory arrives as a push notification the moment it is issued, on iPhone, iPad, Apple Watch, Mac and Apple TV.
Free to download; live weather requires a subscription. On iPhone and iPad, every subscription includes a 7-day free trial for new subscribers; Mac plans do not. Mac and iOS plans are separate; Apple TV is included with Forecast Bar Gold on iOS.