Today | Weather | Tuesday, April 7, 2026

Active Weather Warnings

Weather in Hamilton, Ohio

09:37 AM

Now

37° F

Feels Like 36°

Precipitation 0 %

Wind 9 mph

UV Index (0 - 11+) 4

Humidity 55 %

Today

Day 48°

Night 28°

Precipitation 1 %

Wind 8 mph

UV Index (0 - 11+) 7

Hamilton Weather Forecast Updated

1 minute ago

Last updated on April 07, 2026 at 9:36 AM

Air Quality in Hamilton

NOW

36 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 2.54 µg/m³

PM₁₀ 3.79 µg/m³

O₃ 0.039 ppm

NO₂ 2.6 ppb

SO₂ 0.9 ppb

CO 0.14 ppm

NH₃ 2.66 µg/m³

NO 1.25 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 – 2.54 µg/m³

PM₁₀ – 3.79 µg/m³

O₃ – 76.45 µg/m³

NO₂ – 4.95 µg/m³

SO₂ – 2.41 µg/m³

CO – 162.25 µg/m³

NH₃ – 2.66 µg/m³

NO – 1.25 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Hamilton

Severe Future Possible

Freeze Watch

Freeze Watch issued April 6 at 9:03AM EDT until April 7 at 10:00AM EDT by NWS Wilmington OH

Apr 7, 1:00 AM → Apr 7, 10:00 AM

WHAT: Sub-freezing temperatures as low as 27 possible.

WHERE: Portions of east central and southeast Indiana and
central, south central, southwest, and west central Ohio.

WHEN: From late tonight through Tuesday morning.

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

+ Read More

Be prepared to take steps to protect tender plants from the cold.

Updated: Apr 6, 11:02 AM Source: NWS Alert

Moderate Expected Likely

Freeze Warning

Freeze Warning issued April 7 at 2:33AM EDT until April 7 at 10:00AM EDT by NWS Wilmington OH

Apr 7, 2:33 AM → Apr 7, 10:00 AM

WHAT: Sub-freezing temperatures as low as 27.

WHERE: Portions of east central and southeast Indiana, northeast
and northern Kentucky, and central, south central, southwest, and
west central Ohio.

WHEN: Until 10 AM EDT this morning.

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