Today | Weather | Saturday, April 4, 2026

Active Weather Warnings

Freeze Warning

Weather in Salt Lake City, Utah

05:16 AM

Now

36° F

Feels Like 30°

Precipitation 0 %

Wind 7 mph

Humidity 74 %

Today

Day 59°

Night 37°

Precipitation 0 %

Wind 8 mph

UV Index (0 - 11+) 7

Salt Lake City Weather Forecast Updated

50 minutes ago

Last updated on April 04, 2026 at 4:26 AM

Weather Forecast History

Last Year's Weather on This Day (April 4, 2025)

Day

52°

Night

34°

Wind

8 mph

UV Index

Precipitation

49 %

Air Quality in Salt Lake City

NOW

26 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 2.94 µg/m³

PM₁₀ 8.04 µg/m³

O₃ 0.028 ppm

NO₂ 1.3 ppb

SO₂ 0 ppb

CO 0.12 ppm

NH₃ 11.41 µg/m³

NO 0 µg/m³

PM_2.5 – Fine particles <2.5μm

PM₁₀ – Inhalable particles <10μm

O₃ – Ozone

NO₂ – Nitrogen dioxide

SO₂ – Sulfur dioxide

CO – Carbon monoxide

NH₃ – Ammonia

NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)

PM_2.5 – 2.94 µg/m³

PM₁₀ – 8.04 µg/m³

O₃ – 54.35 µg/m³

NO₂ – 2.53 µg/m³

SO₂ – 0.03 µg/m³

CO – 142.48 µg/m³

NH₃ – 11.41 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Salt Lake City

Moderate Expected Likely

Freeze Warning

Freeze Warning issued April 3 at 10:20PM MDT until April 4 at 9:00AM MDT by NWS Salt Lake City UT

Apr 3, 10:20 PM → Apr 4, 9:00 AM

WHAT: Temperatures will drop below freezing again tonight. Along
the Wasatch Front, Tooele Valley, San Rafael Swell, and Western
Canyonlands, expect low temperatures in the mid 20s to low 30s,
and in the Rush Valley, temperatures will drop into the mid teens.

WHERE: The Wasatch Front, Tooele and Rush Valleys, San Rafael
Swell, and Western Canyonlands.

WHEN: Until 9 AM MDT Saturday.

IMPACTS: Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.

+ Read More

Take steps now to protect tender plants from the cold. Drain in-ground sprinkler systems and cover above ground pipes.

Updated: Apr 4, 4:26 AM Source: NWS Alert