Flood Watch FLOOD WATCH - Plano, Collin County, Texas
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Updated: @ 01-Oct-2026 9:15pm - next update at 9:20pm  
Summary / Temperature Wind Precipitation Outlook


Night time, Humid, Cloudy with clear patches
Night time, Humid, Cloudy with clear patches

71.8°F Colder 0.2°F than last hour.
Comfortable
Currently 71.8, Max: 79.9, Min: 68.7 Feels like:
68°F

24-hr
difference
-5.4°FColder 5.4°F than yesterday at this time.
TEMP HIGH LOW
Today 79.9°F
1:19am
68.7°F
9:41am
Yesterday 89.5°F
1:31pm
76.8°F
10:00pm
Record 102°F
1979
42°F
1984
Normal 84°F
63°F
 Wind from ESE ESE
2.3
Gust:
6.6
Light Air

60-Min Avg: Calm
120-Min Avg: 2.3 mph
Max Gust: 28.8 mph 1:17am
Month: 28.8 mph Oct 1
Today: 2.69 in
Storm Rain: 2.53 in
Yesterday: 0.22 in
Last
Rain:
10/1/2026
3:25 PM
October: 2.69 in
Last 7 Days: 0.24 in
Rain Season:1 25.47 in
Rain Days: 58 in 2026
1 rain day in October
Friday

Friday: Showers And Thunderstorms
Showers And T-Storms

Barometer Humidity/Dew Point Moon
Current: 29.866 inHg Rising 0.02 °F/hr
1-Hr Trend: Rising slowly
3-Hr Trend: Rising
High: 29.868  |  Low: 29.728
Humidity: 94 %  
Humidex: 87.1°F
Dewpoint: 70.0°F Decreased 0.2°F since last hour.
Wetbulb: 70.6°F
Waning Gibbous
Waning Gibbous, Moon at 20 days in cycle
67%
Illuminated
UV Forecast Current Solar Energy
01-Oct-2026   High   7.8   
02-Oct-2026   High   7.3   
03-Oct-2026   High   7.0   
Energy: 0 W/m2 (0%)
High: 108 at  2:15pm
Apparent Temp: 76.3°F
Heat Index Cooling Degree Days Sun
Current: 67.6°F
Today: 79.9°F  1:19am
Yesterday: 98.0°F
Last Week: 103.7°F
Record: 127.2°F   26-Aug-2023
Today: 10.1
October: 10.1
2026 to Date: 3350.0
Heating Degree Days
2026 to Date: 930.5
Sunlight Hours
Possible hours of Daylight
11:50 hrs:min
-00:02:01 Min
Almanac Irrigation Index5 Station All Time Records Fire Risk
Sunrise: 7:21am
Sunset: 7:11pm
Moonrise: 10:43pm
Moonset: 1:52pm
Full Moon: September 26 2026
New Moon: 15:51 UTC October 10 2026
Updated at Midnight
Current: 0.03 in   
7-Days Rain: 0.24 in   
7-Days ET: 1.15 in   
7-Day: -0.91 in 0.91 in water in deficit of what evaporated in last 7 days.
October: 2.69 in 2.69 in water in excess of what evaporated this month.
Irrigation System: Standby
Other Conditions
Air Density: 1.18 kg/m3
Cloud Height: 1172 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:98%
Chandler Burning Index
Chandler Burning Index: LOW
Currently:
-1.2 at 9:15 PM
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  -   Tonight's and Friday's Outlook
Tonight

Tonight: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms

Lo 70 °F
NWS forecast: A slight chance of showers and thunderstorms between 10pm and 1am, then showers and thunderstorms. Mostly cloudy, with a low around 70. South wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Friday

Friday: Showers And Thunderstorms
Showers And T-Storms

Hi 76 °F
NWS forecast: Showers and thunderstorms. Cloudy. High near 76, with temperatures falling to around 74 in the afternoon. North northeast wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
 NWS NWS Short Term Weather Forecast
Friday

Friday: Showers And Thunderstorms
Showers And T-Storms
Friday
Night
Friday Night: Rain Showers Likely
Rain Showers Likely
Saturday

Saturday: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Saturday
Night
Saturday Night: Rain Showers Likely
Rain Showers Likely
Sunday

Sunday: Chance Rain Showers
Chance Rain Showers
Sunday
Night
Sunday Night: Chance Showers And Thunderstorms then Partly Cloudy
Chance Showers And T-Storms then Partly Cloudy
Monday

Monday: Sunny
Sunny
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Hi 76 °F Lo 67 °F Hi 76 °F Lo 66 °F Hi 80 °F Lo 63 °F Hi 80 °F Lo 60 °F
US Radar & Infrared Satellite
US Radar National Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.