Hourly Weather | Today Tuesday, January 13, 2026
Modesto, California
3 PM
Cloudy Weather
57°
Feels Like 61°
0
Humidity: 61%
Wind: 5 mph
UV Index: 1
4 PM
Cloudy Weather
57°
Feels Like 57°
0
Humidity: 64%
Wind: 6 mph
UV Index: 1
5 PM
Cloudy Weather
55°
Feels Like 54°
0
Humidity: 68%
Wind: 6 mph
UV Index: 0
6 PM
Cloudy Night
54°
Feels Like 52°
0
Humidity: 72%
Wind: 5 mph
UV Index: 0
7 PM
Cloudy Night
50°
Feels Like 50°
0
Humidity: 74%
Wind: 5 mph
UV Index: 0
8 PM
Cloudy Night
48°
Feels Like 46°
0
Humidity: 81%
Wind: 5 mph
UV Index: 0
9 PM
Cloudy Night
45°
Feels Like 45°
0
Humidity: 88%
Wind: 5 mph
UV Index: 0
10 PM
Cloudy Night
43°
Feels Like 43°
0
Humidity: 96%
Wind: 4 mph
UV Index: 0
11 PM
Cloudy Night
43°
Feels Like 43°
0
Humidity: 97%
Wind: 4 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

3 PM
52 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 12.89 µg/m³
  • PM10: 17.18 µg/m³
  • O3: 0.040 ppm
  • NO2: 4.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.20 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

4 PM
57 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.22 µg/m³
  • PM10: 20.02 µg/m³
  • O3: 0.036 ppm
  • NO2: 6.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.23 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

5 PM
64 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 18.55 µg/m³
  • PM10: 24.1 µg/m³
  • O3: 0.031 ppm
  • NO2: 10.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.27 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

6 PM
72 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 22.21 µg/m³
  • PM10: 28.61 µg/m³
  • O3: 0.025 ppm
  • NO2: 14 ppb
  • SO2: 0.4 ppb
  • CO: 0.31 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

7 PM
81 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 26.47 µg/m³
  • PM10: 33.69 µg/m³
  • O3: 0.021 ppm
  • NO2: 16.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.34 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

8 PM
86 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 29.02 µg/m³
  • PM10: 36.79 µg/m³
  • O3: 0.018 ppm
  • NO2: 17.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.35 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

9 PM
86 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 29.08 µg/m³
  • PM10: 37.19 µg/m³
  • O3: 0.015 ppm
  • NO2: 17.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.36 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

10 PM
84 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 28.12 µg/m³
  • PM10: 36.32 µg/m³
  • O3: 0.013 ppm
  • NO2: 16.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.36 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

11 PM
81 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 26.58 µg/m³
  • PM10: 34.51 µg/m³
  • O3: 0.011 ppm
  • NO2: 14.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.35 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.