Next 24 hours

US AQI

49Now
48
48
4710 PM
47
47
471 AM
46
46
454 AM
45
45
457 AM
45
45
4510 AM
45
45
451 PM
46
48
494 PM
49
49

Air quality outlook

Worst hour each day

Today49Good
Sat 1749Good
Sun 1847Good
Mon 1963Moderate
Tue 2082Moderate

From our air-quality forecast models (GEOS-CF / GEFS aerosols). AQI uses the US EPA scale.

Live radar

Open full map

About Caldwell weather

Caldwell is in Canyon County, Idaho, United States at 43.66°, -116.69°. Right now it’s 63° and clear; today’s high is 74° with a 0% chance of rain.

Idaho's climate varies dramatically due to its complex topography, ranging from semi-arid conditions in the Snake River Plain to heavy mountain snowfall in the central and northern highlands. Boise enjoys a semi-arid climate with hot, dry summers and cold winters, receiving only about 12 inches of precipitation annually. The state's diverse terrain creates numerous microclimates within short distances.