Today | Weather | Tuesday, March 17, 2026

Active Weather Warnings

Weather in Huntsville, Alabama

02:25 AM

Now

30° F

Feels Like 27°

Precipitation 0 %

Wind 6 mph

Humidity 69 %

Today

Day 46°

Night 32°

Precipitation 0 %

Wind 9 mph

UV Index (0 - 11+) 6

FROST FORECAST

Overnight Frost 6 AM – 7 AM

Huntsville Weather Forecast Updated

41 minutes ago

Last updated on March 17, 2026 at 1:43 AM

Weather Forecast History

Last Year's Weather on This Day (March 17, 2025)

Day

61°

Night

36°

Wind

7 mph

UV Index

Precipitation

0 %

Air Quality in Huntsville

NOW

46 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 0.5 µg/m³

PM₁₀ 1.44 µg/m³

O₃ 0.050 ppm

NO₂ 1 ppb

SO₂ 0.4 ppb

CO 0.13 ppm

NH₃ 1.44 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 – 0.5 µg/m³

PM₁₀ – 1.44 µg/m³

O₃ – 97.57 µg/m³

NO₂ – 1.8 µg/m³

SO₂ – 0.95 µg/m³

CO – 151.91 µg/m³

NH₃ – 1.44 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Huntsville

Severe Future Possible

Freeze Watch

Freeze Watch issued March 15 at 2:54AM CDT until March 17 at 9:00AM CDT by NWS Huntsville AL

Mar 16, 8:00 PM → Mar 17, 9:00 AM

WHAT: For the Wind Advisory, southwest winds 15 to 25 mph with
gusts up to 45 mph expected. For the Freeze Watch, sub-freezing
temperatures as low as 22 is forecast.

WHERE: Portions of north central, northeast, and northwest
Alabama.

WHEN: For the Wind Advisory, from 1 PM this afternoon to 7 AM CDT
Monday. For the Freeze Watch, from Monday evening through Tuesday
morning.

IMPACTS: Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
Frost and freeze conditions could kill crops, other sensitive
vegetation and possibly damage unprotected outdoor plumbing.

+ Read More

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects. Take steps now to protect tender plants from the cold.

Updated: Mar 15, 12:38 PM Source: NWS Alert

Moderate Expected Likely

Freeze Warning

Freeze Warning issued March 16 at 9:59PM CDT until March 17 at 10:00AM CDT by NWS Huntsville AL

Mar 16, 9:59 PM → Mar 17, 10:00 AM

WHAT: For the first Freeze Warning, sub-freezing temperatures as
low as 23. For the second Freeze Warning, sub-freezing
temperatures as low as 25.

WHERE: All counties in northern Alabama.

WHEN: For the first Freeze Warning, until 10 AM CDT Tuesday. For
the second Freeze Warning, from 9 PM Tuesday to 9 AM CDT Wednesday.

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