Best Atomic Weather Clock (Updated | Jan 15th)

The WallarGe Atomic Clock combines precise timekeeping with indoor and outdoor temperature monitoring in a sleek 12.5‑inch design. Its built‑in WWVB receiver syncs automatically with the national atomic signal, keeping you within one second of true time without ever needing manual adjustment.

A wireless sensor placed up to 100 ft away reports outdoor temperature, while a high‑quality internal sensor shows indoor climate, both in Celsius or Fahrenheit. The large 2.5‑inch digits are easy to read from anywhere, and the clock offers 12/24‑hour formats, four time zones, daylight‑saving auto‑adjust, alarm and calendar functions—all powered by batteries for flexible placement.

La Crosse Technology’s 513‑75624‑INT digital atomic clock delivers crystal‑clear time and weather data in a compact, dual‑purpose design that works on a tabletop or wall mount. The built‑in atomic receiver automatically synchronizes to the national time signal, guaranteeing second‑level accuracy and handling daylight‑saving changes on its own.

A wireless sensor, with a 330‑foot range, reports outdoor temperature up to 140 °F, while an internal probe tracks indoor climate, both shown in Fahrenheit or Celsius. Large two‑inch digits make reading effortless, and a gentle crescendo alarm with a ten‑minute snooze keeps mornings punctual.

All features are powered by standard AA batteries for easy placement.

The Sharp Atomic Clock combines precise timekeeping with home weather monitoring. Its built‑in WWVB receiver syncs automatically with the U.S.

National Institute of Standards, keeping the clock accurate to within one second without manual adjustment. A jumbo 4‑inch LCD shows hours, minutes, seconds, indoor and outdoor temperature, calendar and day of week.

The unit runs on four AA batteries, while the included wireless outdoor sensor, powered by two AAA cells, transmits temperature data up to 100 ft away, eliminating any wiring. Whether mounted on a wall or placed on a desk, this clock offers clear readability and reliable performance for any room.

The Newentor Weather Station offers a comprehensive view of indoor and outdoor conditions on a generous 7.5‑inch color LCD. It tracks temperature, humidity, barometric pressure and displays daily highs, lows, and a 12‑ to 24‑hour forecast generated from up to three wireless sensors, with one sensor included.

An integrated atomic clock keeps time precise, while dual alarms and a snooze function add convenience. Users can switch between always‑on and power‑saving backlight modes, and the device also shows moon phase, weather icons, and calendar data.

Though the interface includes many features, it remains intuitive for everyday home monitoring.

The La Crosse Technology 513-1417AL-INT Atomic Clock blends precise timekeeping with dual temperature monitoring. Its built‑in atomic receiver auto‑updates the clock and adjusts for daylight‑saving time, while a weather‑resistant sensor reports indoor and outdoor temps up to 330 feet away.

Large 2.125‑inch digits make reading easy, and a crescendo alarm with a 10‑minute snooze adds convenience. You can switch among seven US time zones and choose a 12‑hour display.

Powered by four AA batteries, this sleek grey/black unit offers a full calendar, moon phase icons, and simple setup for any home.

WallarGe’s 8.5‑inch Atomic Clock delivers precise time via WWVB radio synchronization and automatically handles daylight‑saving changes. It shows both indoor and outdoor temperatures, with a wireless sensor that transmits data from up to 330 feet away, provided it stays out of direct sunlight or rain.

The bold central display with seconds makes time reading effortless, while the bottom panel lists day, date, and temperature details. Powered by three AAA batteries for the clock and two AA for the sensor, it alerts you to low battery status.

The clock includes a digital alarm and optional DST indicator, though it lacks a backlight.

Experience hands‑free precision with LFF’s 15‑inch atomic wall clock. It receives the WWVB signal from NIST, automatically updating time, date, and even daylight‑saving changes without manual input.

The high‑definition LCD shows large, easy‑read numbers alongside indoor temperature, humidity, and an accurate indoor/outdoor sensor that reports conditions up to 100 meters away, all in Celsius or Fahrenheit. Powered by AA batteries, the unit mounts on a wall or sits on a desk, making it ideal for seniors, offices, or kitchens.

No backlight conserves power, while the sleek design adds modern décor flair.

La Crosse Technology delivers a classic wood‑grain atomic clock that never loses time. Syncing to the US atomic signal, it automatically sets the hour, date, and daylight‑saving adjustments, while also offering a manual override.

The 2.125‑inch digits are bold and easy to read from across the room. Built‑in indoor temperature measurement pairs with a wireless outdoor sensor, giving you accurate weather data in Fahrenheit or Celsius.

Powered by AA batteries, the compact oak‑finished unit fits neatly on a nightstand or shelf, blending vintage charm with modern reliability.

The DreamSky Weather Station combines a bright, colorful display with precise atomic timekeeping, making it easy to read indoor and outdoor conditions from across the room. It supports up to three wireless sensors, so you can track temperature and humidity in multiple spots, while high/low alerts keep you informed of sudden changes.

Automatic DST adjustment eliminates twice‑yearly clock changes, and a 12‑hour forecast uses local pressure trends for up to a day’s outlook. Five backlight levels let you dim the screen for night use without disturbing sleep.

La Crosse Technology’s 616‑41667‑INT atomic alarm clock projects time and temperature onto any wall or ceiling, providing a clear view from across the room. The device automatically syncs with atomic signals, updating for daylight‑saving changes and supporting seven US time zones.

A wireless outdoor sensor reports temperature trends with arrow indicators, while the 1‑inch digits offer both 12‑hour and 24‑hour formats. Adjustable white backlight levels and a snooze function add convenience, and the compact black design fits neatly on nightstands or shelves.