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Active Weather Warnings

Weather in McKinney, Texas

12:44 PM
Now
Cloudy Weather
63° F
Feels Like 64°
Precipitation 5 %
Wind 8 mph
UV Index (0 - 11+) 3
Humidity 64 %
Today
Cloudy Weather
Day 66°
Night 55°
Precipitation 24 %
Wind 6 mph
UV Index (0 - 11+) 3

McKinney Weather Forecast Updated

34 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (November 23, 2024)
Cloudy Night

Day

72°

Night

54°

Wind

12 mph

Precipitation

0 %

Air Quality in McKinney

NOW
44 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 10.45 µg/m³
PM10 11.37 µg/m³
O3 0.031 ppm
NO2 1.2 ppb
SO2 0.4 ppb
CO 0.18 ppm
NH3 0.38 µg/m³
NO 0.59 µg/m³
PM2.5 – 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)
PM2.510.45 µg/m³
PM1011.37 µg/m³
O360.67 µg/m³
NO22.25 µg/m³
SO21.14 µg/m³
CO205.36 µg/m³
NH30.38 µg/m³
NO0.59 µg/m³

Weather Alerts and Warnings for McKinney

Severe Future Possible

Flood Watch

Flood Watch issued November 23 at 3:55AM CST until November 24 at 6:00PM CST by NWS Fort Worth TX
Nov 23, 6:00 PM Nov 24, 6:00 PM
Multiple rounds of heavy rain are expected to move across the watch
area late this afternoon through Monday afternoon. The flash flood
threat will be greatest tonight through Monday morning, particularly
in areas that received heavy rain last week.

WHAT: Flooding caused by excessive rainfall is possible.

WHERE: Portions of North Texas, including the following counties,
in north central Texas, Collin, Cooke, Dallas, Denton, Eastland,
Fannin, Grayson, Hunt, Jack, Montague, Palo Pinto, Parker,
Rockwall, Stephens, Tarrant, Wise and Young. In northeast Texas,
Delta, Hopkins, Lamar and Rains.

WHEN: From this evening through Monday afternoon.

IMPACTS: Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor-drainage and urban areas.

ADDITIONAL DETAILS:
- Rainfall totals of 1 to 3 inches, with isolated higher
amounts up to 4 inches.
+ Read More
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Updated: Nov 23, 12:10 PM Source: NWS Alert