When will the power be back in Arnold, MO?
Our restoration forecast is independent and unofficial, never the utility's commitment. How it works · How accurate it has been
Arnold is a city of about 21,036 residents in Jefferson County.
Ameren has reported outages for Arnold by name on its own public outage map (most recently observed 2026-09-18) — so when Arnold is affected, this page can show the city's own customers-out count and restoration time rather than only the county-wide total.
ZIP codes in Arnold:
Checking a ZIP goes straight to the address-level view for that area.
Around Arnold: the closest other places we track are Crestwood, about 9 miles to the north; Columbia, IL, about 9 miles to the east; Kirkwood, about 11 miles to the north; and Webster Groves, about 11 miles to the north. Also nearby: Manchester (13 mi NW); Waterloo, IL (13 mi SE); Festus (15 mi S); Ballwin (15 mi NW); Clayton (15 mi N); Town and Country (15 mi N); Cahokia Heights, IL (15 mi NE); and Eureka (16 mi W).
Looking further out, the nearest place we track is: north toward University City (16 mi); northeast toward St. Louis (16 mi); east toward Belleville, IL (22 mi); southeast toward Carbondale, IL (79 mi); south toward Farmington (45 mi); southwest toward Rolla (82 mi); west toward Union (34 mi); and northwest toward Ellisville (16 mi).
Who serves Arnold?
We track live outage data from Ameren and Missouri Electric Cooperatives in Jefferson County — but several utilities can serve one county, so confirm your own by searching your address on the live map.
Arnold's last tracked outage began Sep 30, peaked at 122 customers out, and was restored in 2 hours. Across the 5 outages tracked here, the typical (median) restoration ran 2 hours.
- Sep 30 — 122 customers out, restored in 2 hours
- Sep 24 — 50 customers out, restored in 3 hours
- Sep 21 — 29 customers out, restored in 50 minutes
- Sep 20 — 50 customers out, restored in 2 hours
County context: across all of Jefferson County, federal outage records (EAGLE-I, 2014–2025) show outages of 200+ customers typically restored in about 3.5 hr. The full record for Jefferson County
Common questions
When will my power be back on in Arnold, MO?
It depends on the cause and how many crews are working; the live status at the top of this page shows the current outlook. For context from Arnold's own record: across the 5 outages this site has tracked here, the typical (median) restoration ran 2 hours — the outage-history panel above lists them.
How do I check the power outage status in Arnold, MO?
To check your own street, search an Arnold ZIP code — 63010 — and the map opens on that area.
