Severe Thunderstorm Watch SEVERE THUNDERSTORM WATCH - Plano, Collin County, Texas
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Updated: @ 22-Jun-2026 4:00am - next update at 4:05am  
Summary / Temperature Wind Precipitation Outlook


Night time, Dry, Overcast -
Night time, Dry, Overcast -

82.0°F Warmer 0.1°F than last hour.
Warm
Currently 82.0, Max: 83.2, Min: 81.6 Feels like:
89°F

24-hr
difference
6.4°FWarmer 6.4°F than yesterday at this time.
TEMP HIGH LOW
Today 83.2°F
12:00am
81.6°F
1:53am
Yesterday 91.7°F
4:44pm
74.2°F
6:05am
Record 103°F
1953
58°F
1902
Normal 93°F
73°F
 Wind from SSE SSE
6.3
Gust:
8.8
Light Breeze

60-Min Avg: 6.9 mph
120-Min Avg: 6.9 mph
Max Gust: 24.2 mph 12:20am
Month: 36.3 mph Jun 7
Today: 0.00 in
Yesterday: 0.00 in
Last
Rain:
6/20/2026
6:29 PM
June: 5.15 in
Last 7 Days: 2.77 in
Rain Season:1 20.55 in
Rain Days: 51 in 2026
8 rain days in June
Monday

Monday: Showers and thunderstorms, mainly before 1pm.  High near 90. Heat index values as high as 101. East wind 10 to 15 mph becoming south in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
T-storms then
Chance
T-storms

Barometer Humidity/Dew Point Moon
Current: 29.792 inHg Rising 0.02 °F/hr
1-Hr Trend: Rising slowly
3-Hr Trend: Rising
High: 29.792  |  Low: 29.732
Humidity: 80 % Decreased 2% since last hour.
Humidex: 102.3°F
Dewpoint: 75.2°F Decreased 0.6°F since last hour.
Wetbulb: 77.3°F
Waxing Gibbous
Waxing Gibbous, Moon at 7 days in cycle
55%
Illuminated
UV Forecast Current Solar Energy
22-Jun-2026   Very High   10.5   
23-Jun-2026   Very High   10.5   
24-Jun-2026   Extreme   11.4   
Energy: 0 W/m2 (0%)
High: 0 at  12:00am
Apparent Temp: 86.6°F
Heat Index Cooling Degree Days Sun
Current: 88.8°F
Today: 91.2°F  12:00am
Yesterday: 106.0°F
Last Week: 110.4°F
Record: 127.2°F   26-Aug-2023
Today: 2.5
June: 347.1
2026 to Date: 1004.0
Heating Degree Days
2026 to Date: 930.5
Sunlight Hours
Possible hours of Daylight
14:21 hrs:min
-00:00:02 Min
Almanac Irrigation Index5 Station All Time Records Fire Risk
Sunrise: 6:18am
Sunset: 8:39pm
Moonrise: 2:23pm
Moonset: 1:25am
Full Moon: June 29 2026
New Moon: 09:44 UTC July 14 2026
Updated at Midnight
Current: 0.09 in   
7-Days Rain: 2.77 in   
7-Days ET: 1.32 in   
7-Day: 1.45 in 1.45 in water in excess of what evaporated in last 7 days.
June: 0.84 in 0.84 in water in excess of what evaporated this month.
Irrigation System: Standby
Other Conditions
Air Density: 1.15 kg/m3
Cloud Height: 2308 ft
HIGHS: LOWS:
111.0°F
Aug 18 2023
-2.0°F
Feb 16 2021
Daytime Records
108.1°F
Aug 19 2024
3.6°F
Feb 15 2021
Nitetime Records
95.2°F
Aug 11 2023
2.1°F
Feb 16 2021
ICN:13 ISS:Ok CON:4.6 RCP:99%
Chandler Burning Index
Chandler Burning Index: LOW
Currently:
1.5 at 04:00 AM
1 Rain season: Jan 1st to Dec 31st.    5 Estimated amount of water needed to replace the water used by plants and evaporation from the past week. (Negative numbers mean amount of water needed, positive numbers mean excess water is present.)
 NWS Weather Forecast  -   Overnight's and Monday's Outlook
Overnight

Overnight: Showers and thunderstorms likely.  Mostly cloudy, with a low around 79. South wind around 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
T-storms
Likely

Lo 79 °F
NWS forecast: Showers and thunderstorms likely. Mostly cloudy, with a low around 79. South wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday

Monday: Showers and thunderstorms, mainly before 1pm.  High near 90. Heat index values as high as 101. East wind 10 to 15 mph becoming south in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
T-storms then
Chance
T-storms

Hi 90 °F
NWS forecast: Showers and thunderstorms, mainly before 1pm. High near 90. Heat index values as high as 101. East wind 10 to 15 mph becoming south in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
 NWS NWS Short Term Weather Forecast
Monday

Monday: Showers and thunderstorms, mainly before 1pm.  High near 90. Heat index values as high as 101. East wind 10 to 15 mph becoming south in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
T-storms then
Chance
T-storms
Monday
Night
Monday Night: A 20 percent chance of showers and thunderstorms after 7pm.  Partly cloudy, with a low around 78. Southeast wind around 10 mph.
Slight Chance
T-storms
Tuesday

Tuesday: A 20 percent chance of showers and thunderstorms before 1pm.  Mostly cloudy, then gradually becoming sunny, with a high near 95. Heat index values as high as 102. South wind around 10 mph, with gusts as high as 20 mph.
Slight Chance
T-storms
Tuesday
Night
Tuesday Night: Mostly clear, with a low around 79. South wind 10 to 15 mph, with gusts as high as 20 mph.
Mostly Clear

Wednesday

Wednesday: Mostly sunny, with a high near 97. South wind 10 to 15 mph, with gusts as high as 20 mph.
Mostly Sunny

Wednesday
Night
Wednesday Night: Mostly clear, with a low around 78. South wind 10 to 15 mph, with gusts as high as 20 mph.
Mostly Clear

Thursday

Thursday: Mostly sunny, with a high near 98. South wind 10 to 15 mph, with gusts as high as 20 mph.
Mostly Sunny

Thursday
Night
Thursday Night: Partly cloudy, with a low around 78. South wind around 15 mph, with gusts as high as 25 mph.
Partly Cloudy

Hi 90 °F Lo 78 °F Hi 95 °F Lo 79 °F Hi 97 °F Lo 78 °F Hi 98 °F Lo 78 °F
US Radar & Infrared Satellite
US Radar National Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.