Meridian, Idaho Weather:
Active Weather Warnings
Wednesday, January 21, 2026
Cloudy Weather
Day 37°
Night 23°
Precipitation 0 %
Wind 5 mph
UV Index (0 - 11+) 2
Weather Forecast History
Last Year's Weather on This Day (January 21, 2025)
Cloudy Weather

Day

34°

Night

14°

Wind

6 mph

UV Index

2

Precipitation

0 %

Weather Alerts and Warnings for

Moderate Expected Likely

Air Stagnation Advisory

Air Stagnation Advisory issued January 19 at 10:39AM MST until January 22 at 11:00AM MST by NWS Boise ID
Jan 19, 10:39 AM Jan 22, 11:00 AM
WHAT: An extended period of stagnant air, with light winds and
little vertical mixing. This is due to an inversion near the
surface that will continue to trap pollutants.

WHERE: Portions of southwest Idaho and northeast and southeast
Oregon.

WHEN: Until 11 AM MST /10 AM PST/ Thursday.

IMPACTS: Poor air quality may cause issues for people with
respiratory problems.
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Persons with respiratory illness should follow their physicians advice for dealing with high levels of air pollution during periods of stagnant air.
Updated: Jan 19, 8:38 PM Source: NWS Alert