Hourly Weather | Today Wednesday, March 18, 2026
Active Weather Warnings
Menifee, California
3 AM
Cloudy Night
61°
Feels Like 61°
0
Humidity: 53%
UV Index: 0
Wind: 5 mph
4 AM
Cloudy Night
57°
Feels Like 57°
0
Humidity: 57%
UV Index: 0
Wind: 5 mph
5 AM
Cloudy Night
55°
Feels Like 55°
0
Humidity: 62%
UV Index: 0
Wind: 5 mph
6 AM
Cloudy Night
54°
Feels Like 52°
0
Humidity: 69%
UV Index: 0
Wind: 5 mph
7 AM
Cloudy Weather
57°
Feels Like 55°
0
Humidity: 62%
UV Index: 0
Wind: 5 mph
8 AM
Cloudy Weather
59°
Feels Like 61°
0
Humidity: 62%
UV Index: 1
Wind: 4 mph
9 AM
Cloudy Weather
66°
Feels Like 70°
0
Humidity: 46%
UV Index: 2
Wind: 4 mph
10 AM
Cloudy Weather
77°
Feels Like 82°
0
Humidity: 32%
UV Index: 3
Wind: 4 mph
11 AM
Cloudy Weather
86°
Feels Like 91°
0
Humidity: 23%
UV Index: 5
Wind: 4 mph
12 PM
Cloudy Weather
91°
Feels Like 99°
0
Humidity: 18%
UV Index: 6
Wind: 5 mph
1 PM
Cloudy Weather
95°
Feels Like 100°
0
Humidity: 15%
UV Index: 6
Wind: 5 mph
2 PM
Cloudy Weather
97°
Feels Like 100°
0
Humidity: 14%
UV Index: 6
Wind: 6 mph
3 PM
Cloudy Weather
99°
Feels Like 102°
0
Humidity: 13%
UV Index: 5
Wind: 7 mph
4 PM
Cloudy Weather
97°
Feels Like 99°
0
Humidity: 16%
UV Index: 3
Wind: 7 mph
5 PM
Cloudy Weather
93°
Feels Like 93°
0
Humidity: 19%
UV Index: 2
Wind: 8 mph
6 PM
Cloudy Weather
90°
Feels Like 90°
0
Humidity: 24%
UV Index: 1
Wind: 7 mph
7 PM
Cloudy Night
82°
Feels Like 81°
0
Humidity: 32%
UV Index: 0
Wind: 6 mph
8 PM
Night
75°
Feels Like 73°
0
Humidity: 42%
UV Index: 0
Wind: 6 mph
9 PM
Night
72°
Feels Like 68°
0
Humidity: 52%
UV Index: 0
Wind: 5 mph
10 PM
Night
66°
Feels Like 64°
0
Humidity: 60%
UV Index: 0
Wind: 5 mph
11 PM
Night
63°
Feels Like 63°
0
Humidity: 67%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

3 AM
94 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 32.43 µg/m³
  • PM10: 44.48 µg/m³
  • O3: 0.040 ppm
  • NO2: 3.6 ppb
  • SO2: 0.6 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.

4 AM
95 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 33.03 µg/m³
  • PM10: 45.11 µg/m³
  • O3: 0.039 ppm
  • NO2: 3.5 ppb
  • SO2: 0.5 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

5 AM
95 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 33.08 µg/m³
  • PM10: 45.11 µg/m³
  • O3: 0.037 ppm
  • NO2: 3.5 ppb
  • SO2: 0.5 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

6 AM
96 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 33.46 µg/m³
  • PM10: 45.4 µg/m³
  • O3: 0.036 ppm
  • NO2: 3.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

7 AM
97 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 34.13 µg/m³
  • PM10: 46.01 µg/m³
  • O3: 0.034 ppm
  • NO2: 3.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

8 AM
98 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 34.69 µg/m³
  • PM10: 46.58 µg/m³
  • O3: 0.033 ppm
  • NO2: 3.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.25 ppm

Health Recommendations:

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

9 AM
101 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 35.84 µg/m³
  • PM10: 47.89 µg/m³
  • O3: 0.033 ppm
  • NO2: 4.3 ppb
  • SO2: 0.6 ppb
  • CO: 0.27 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

10 AM
105 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 37.34 µg/m³
  • PM10: 49.55 µg/m³
  • O3: 0.035 ppm
  • NO2: 4.2 ppb
  • SO2: 0.6 ppb
  • CO: 0.28 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

11 AM
110 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 39.26 µg/m³
  • PM10: 51.49 µg/m³
  • O3: 0.041 ppm
  • NO2: 3.5 ppb
  • SO2: 0.6 ppb
  • CO: 0.28 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

12 PM
115 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 41.48 µg/m³
  • PM10: 53.51 µg/m³
  • O3: 0.050 ppm
  • NO2: 2.5 ppb
  • SO2: 0.5 ppb
  • CO: 0.26 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

1 PM
119 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 43.15 µg/m³
  • PM10: 54.76 µg/m³
  • O3: 0.057 ppm
  • NO2: 1.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.24 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

2 PM
118 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 42.65 µg/m³
  • PM10: 53.68 µg/m³
  • O3: 0.061 ppm
  • NO2: 0.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.22 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

3 PM
110 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 39.32 µg/m³
  • PM10: 49.74 µg/m³
  • O3: 0.060 ppm
  • NO2: 0.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.20 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

4 PM
101 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 35.69 µg/m³
  • PM10: 45.64 µg/m³
  • O3: 0.058 ppm
  • NO2: 0.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.19 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

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

Pollutant Concentrations:

  • PM2.5: 32.62 µg/m³
  • PM10: 42.34 µg/m³
  • O3: 0.057 ppm
  • NO2: 0.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 30.52 µg/m³
  • PM10: 40.07 µg/m³
  • O3: 0.057 ppm
  • NO2: 0.8 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 29.34 µg/m³
  • PM10: 38.92 µg/m³
  • O3: 0.055 ppm
  • NO2: 1.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 28.61 µg/m³
  • PM10: 38.38 µg/m³
  • O3: 0.053 ppm
  • NO2: 1.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 28.58 µg/m³
  • PM10: 38.5 µg/m³
  • O3: 0.050 ppm
  • NO2: 1.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 28.74 µg/m³
  • PM10: 38.79 µg/m³
  • O3: 0.048 ppm
  • NO2: 1.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 28.44 µg/m³
  • PM10: 38.61 µg/m³
  • O3: 0.047 ppm
  • NO2: 1.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

Weather Alerts and Warnings for Menifee

Severe Future Likely

Extreme Heat Watch

Extreme Heat Watch issued March 14 at 5:51AM PDT until March 20 at 8:00PM PDT by NWS San Diego CA
Mar 16, 10:00 AM Mar 20, 8:00 PM
WHAT: Dangerously hot conditions with temperatures 85 to 90 near
the coast, up to 105 inland.

WHERE: Orange County Coastal Areas, Orange County Inland Areas,
San Bernardino and Riverside County Valleys-The Inland Empire, San
Diego County Coastal Areas, San Diego County Valleys, and Santa
Ana Mountains and Foothills.

WHEN: From Monday morning through Friday evening.

IMPACTS: Heat related illnesses increase significantly during
extreme heat events.

ADDITIONAL DETAILS: High temperatures next week will be 20 to
potentially 30 degrees above
normal for this time of year, where record breaking heat is likely.
+ Read More
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
Updated: Mar 14, 12:11 PM Source: NWS Alert
Moderate Expected Likely

Heat Advisory

Heat Advisory issued March 17 at 9:14PM PDT until March 20 at 8:00PM PDT by NWS San Diego CA
Mar 17, 9:14 PM Mar 20, 8:00 PM
WHAT: High temperatures in the upper 90s to 102 degrees.

WHERE: San Bernardino and Riverside County Valleys-The Inland
Empire.

WHEN: Until 8 PM PDT Friday.

IMPACTS: Hot temperatures may cause heat illnesses.
+ Read More
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Updated: Mar 18, 1:27 AM Source: NWS Alert