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Hourly Weather | Today › Thursday, December 11, 2025
Active Weather Warnings
Rochester, New York
2 PM
Snowy Weather
25°
Feels Like 3°
43
Humidity: 74%
Wind: 21 mph
UV Index: 0
3 PM
Cloudy Weather
23°
Feels Like 3°
40
Humidity: 75%
Wind: 21 mph
UV Index: 0
4 PM
Cloudy Weather
21°
Feels Like 1°
34
Humidity: 77%
Wind: 20 mph
UV Index: 0
5 PM
Cloudy Weather
21°
Feels Like 3°
34
Humidity: 78%
Wind: 18 mph
UV Index: 0
6 PM
Cloudy Weather
21°
Feels Like 3°
35
Humidity: 80%
Wind: 17 mph
UV Index: 0
7 PM
Cloudy Weather
21°
Feels Like 7°
37
Humidity: 79%
Wind: 15 mph
UV Index: 0
8 PM
Cloudy Weather
21°
Feels Like 7°
44
Humidity: 80%
Wind: 14 mph
UV Index: 0
9 PM
Snowy Weather
21°
Feels Like 5°
51
Humidity: 82%
Wind: 14 mph
UV Index: 0
10 PM
Cloudy Weather
21°
Feels Like 7°
38
Humidity: 81%
Wind: 13 mph
UV Index: 0
11 PM
Snowy Weather
21°
Feels Like 7°
51
Humidity: 81%
Wind: 13 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

2 PM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.039 ppm
  • NO2: 0.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

3 PM
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.038 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

4 PM
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.038 ppm
  • NO2: 1.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

5 PM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

6 PM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

7 PM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

8 PM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

9 PM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

10 PM
33 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

11 PM
33 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

Current Real-Time Air Quality Report

Weather Alerts and Warnings for Rochester

Moderate Expected Likely

Winter Weather Advisory

Winter Weather Advisory issued December 11 at 1:30AM EST until December 12 at 7:00AM EST by NWS Buffalo NY
Dec 11, 1:30 AM → Dec 12, 7:00 AM
WHAT: Lake effect snow. Snow accumulations 2 to 5 inches in the
most persistent lake snows. Winds gusting as high as 35 mph will
produce blowing and drifting snow.

WHERE: Monroe County. The greatest accumulations will likely be
along the Route 104 corridor, especially east of Rochester.

WHEN: Until 7 AM EST Friday.

IMPACTS: Travel will be difficult at times with snow covered
roads and reduced visibility. The hazardous conditions will impact
the Thursday morning and evening commutes.
+ Read More
Lake effect snow will fall in relatively narrow bands. If traveling, be prepared for rapidly changing road conditions and visibilities. Submit snow reports through our website or social media.
Updated: Dec 11, 8:59 AM Source: NWS Alert