View the Last 24h

Use 24h in Historical to follow a rolling 24-hour window ending at the latest refresh time.

Select the rolling period

On iPhone, open Historical and choose 24h in the period control above the charts.
On iPad or Mac, open Historical, choose the calendar button, then choose 24h.

Weather Fusion loads stored observations from the preceding 24 elapsed hours and updates the charts as newer observations arrive. This period can cross two calendar dates and remains 24 elapsed hours across daylight-saving transitions.

Tap or click Last 24h in the navigation bar to switch between the compact label and the exact start and end times.

The 24h window follows the current time. Choose Day, Week, Month, or Year to use previous and next controls with a fixed calendar period.

If a chart is missing, confirm that the station database contains compatible observations in the rolling window. See Fix missing historical or observation data when recent records are incomplete.