When will the power be back in Grand Terrace, CA?
| Utility information | Our restoration forecast |
|---|---|
| Official ETA, when the utility posts one | Independent estimated return window when trend data allows — often available first |
| Utility-reported status & customer counts | Confidence range + whether the outage is growing, stable, or restoring |
How the forecast works: we analyze how quickly customers are being restored, whether the outage is still growing, current weather, outage size, and similar past outages in this area. Every completed forecast is compared with when power actually returned. As of Aug 19, 7,878 completed outages have been graded this way — median error 2 hours across the most recent 600 of them (about 1.9 days), and we publish the misses. See the full record (how it works). Independent and unofficial: never the utility's commitment.
Track current power outages in Grand Terrace, California — customers reported out, restoration progress, active weather alerts, and an independent restoration estimate. Grand Terrace is a city in San Bernardino County; when the serving utility's public feed reports Grand Terrace directly, this page shows the city's own outage count and restoration time, with the county-wide view as context.
Grand Terrace is a city of about 12,979 residents in San Bernardino County.
None of the utility outage maps we follow has yet listed an outage for Grand Terrace by name, so this page reports the San Bernardino County county-wide view, which covers Grand Terrace. If a serving utility does name Grand Terrace during an outage, the city's own numbers appear here automatically.
ZIP codes in Grand Terrace: 92313 Checking a ZIP goes straight to the address-level view for that area.
Around Grand Terrace: the closest other places we track are Colton, about 2 miles to the northwest; Loma Linda, about 4 miles to the east; Rialto, about 7 miles to the northwest; San Bernardino, about 8 miles to the north. Also nearby: Riverside (8 mi SW), Redlands (8 mi E), Jurupa Valley (9 mi W), Fontana (10 mi NW), Moreno Valley (10 mi SE), Highland (10 mi NE), Calimesa (15 mi E), Norco (15 mi SW). Looking further out, the nearest place we track is: north toward Hesperia (25 mi); east toward Yucaipa (15 mi); southeast toward Beaumont (21 mi); south toward Perris (17 mi); southwest toward Corona (19 mi); west toward Eastvale (16 mi); northwest toward Rancho Cucamonga (16 mi).
Who serves Grand Terrace?
We track live outage data from Southern California Edison in San Bernardino County — but several utilities can serve one county, so confirm your own by searching your address on the live map. See the forecast panel above for how the estimate works — its inputs, its independence from the utility, and how every completed forecast is scored against what actually happened. Outages below 5 customers are too small for a meaningful area-wide estimate — the page says so instead of guessing.
Common questions
When will my power be back on in Grand Terrace, CA?
It depends on the cause and how many crews are working. When's the Power Back? combines the live outage count, the current restoration rate, weather, and local history into an independent estimate for the Grand Terrace area — shown even before your utility posts an official restoration time. Check the live power outage status at the top of this page.
How do I check the power outage status in Grand Terrace, CA?
This page is a live power outage status check for the Grand Terrace area: current customers out, the affected areas on the map, and an independent restoration forecast when enough trend data is available, refreshed about every 15 minutes from utilities' own outage maps and the federal government's county outage data. To narrow it to your own street, search a Grand Terrace ZIP code — 92313 — and the map opens on that area. Your utility's own outage map remains the official word for your account.
How do I report a power outage in Grand Terrace, CA?
Report it to your electric utility — crews are dispatched from customer reports. Utilities tracked in San Bernardino County include Southern California Edison; confirm your own provider, then use its outage line or website. Reporting a downed line helps crews find the fault faster. In a life-threatening emergency, call 911.
Does this page show Grand Terrace specifically, or the whole county?
Right now, the San Bernardino County county-wide view, which covers Grand Terrace. No utility outage map we follow has yet listed an outage for Grand Terrace by name; utilities here have so far reported only county-wide totals, or used area names we cannot match to Grand Terrace. If that changes during an outage, the city's own count and restoration time appear here automatically. Colton (2 mi NW) is the closest place we track separately.
How accurate is the restoration estimate?
Every estimate is later graded against when the tracked outage was substantially restored (~90% of customers back), and the track record is published on our accuracy page. Estimates firm up a few hours into an outage once a steady restoration trend appears; very small outages are marked "too small to estimate" rather than guessed.
