When's the power back on in Arnold, MO?
Track current power outages in Arnold, Missouri — customers reported out, restoration progress, active weather alerts, and an independent restoration estimate. Arnold is a city in Jefferson County; when the serving utility's public feed reports Arnold directly, this page shows the city's own outage count and restoration time, with the county-wide view as context.
Who serves Arnold — and how this estimate works
Serving utilities tracked for Jefferson County include Ameren (MO/IL). The estimate uses changes in the reported outage count, restoration progress, current weather, outage size, and available local history. It is independent and unofficial — when a utility posts an official restoration time, both are shown separately. We score our own estimates against what actually happened on the accuracy page. Outages below 25 customers are too small for a meaningful area-wide estimate — the page says so instead of guessing.