Excessive Heat Warning EXCESSIVE HEAT WARNING - Collin County
Air Quality Alert AIR QUALITY ALERT - Collin County
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Updated: 21-Jul-2018 @ 4:40am  
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Colder 1.3°F than last hour.

84.2°F

Heat Index:  86.8°F
Warm
High Today
90.0°F
12:24 AM
Low Today
84.2°F
4:37 AM
Yest High
107.0°F
5:29 PM
Yest Low
82.0°F
7:00 AM
Sta* High
107.1°F
2012
Sta* Low
71.5°F
2014
Avg* High
99.8°F
for Today
Avg* Low
77.8°F
for Today
* Based on this station's measurements taken since 10/2009
<!-- fixupCondition in='Night time/Dry/Clear skies ' out='Night time, Dry, Clear skies' ocnt='3' --><!-- vals split on slash -->
Night time, Dry, Clear skies Night time, Dry, Clear skies
Wind from SSW Wind:  SSW
8.4

Gusting to:
6.0 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
14.3 of 100
Overnight

Overnight: Mostly clear, with a steady temperature around 85. Southwest wind around 10 mph.
Mostly Clear
Saturday

Saturday: Mostly sunny and hot, with a high near 109. West southwest wind 5 to 10 mph.
Hot
Saturday
Night
Saturday Night: Mostly clear, with a low around 82. South southwest wind around 5 mph becoming northwest after midnight.
Mostly Clear
Lo 85 °F Hi 109 °F Lo 82 °F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Decreased 0.1°F since last hour. 66.8°F
Last Hour: Decreased 0.1°F since last hour. 0.1°F
High 4:20 AM: 67.3°F
Low 12:01 AM: 63.5°F
Record High: 81.5°F on
Aug-17-2017
Record Low: -3.6°F on
Jan-27-2014
Wetbulb: 72.8°F
Rain Today
rain graph

Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 0.00 in
Jul Rain: 1.08 in
Jul to Date
  Avg:10
1.99 in
Jul to Date
  Diff from Avg:10
Under 0.91 in for the month 0.91 in
Jul Avg: 2.88 in
Diff from Avg: Under 1.8 in for the month 1.80 in
Season:1 25.77 in
YTD
  Avg:11
24.16 in
YTD
  Diff from Avg:11
Over 1.61 in for the year 1.61 in
Last Rain
Time/Date:
Jul-13-2018
at 5:49 AM
43 rain days in 2018
4 days in July
8 days since last rain
Current: SSW  8.4 mph
1Hr Average: 7.7 mph
Wind Run: 34.60 miles
Wind Gust
Current: 6.0 mph mph
Today: 21.0 mph 2:00 AM
Month: 34.0 mph Jul-3
Year: 49.5 mph Apr-13
Record Gust: 63.3 mph
Mar-29-2017
Sunlight:
14 hrs 2 min
of Sunlight Today
graph 58.5% 41.5%
Which is
1 min 11 sec Shorter
Than Yesterday
 

Morning Crescent, 8 days, 6 hours, 54 minutes in cycle
19%
Illuminated
Humidity Barometer
Current: Increased 2% since last hour. 56%
Last Hour: Increased 2% since last hour. 2%
High 4:20 AM: 56%
Low 12:01 AM: 43%
Record High: 100%
Oct-6-2009
Record Low: 13%
Dec-11-2017
Current: Rising 0.016  inHg/hr 29.810 inHg
Last Hour: Rising slowly
High 4:39 AM: 29.811 in.
Low 2:44 AM: 29.785 in.
Record High: 30.844 inHg
Jan-1-2018
Record Low: 29.323 inHg
Jan-21-2017
Cooling Degree Days Snow3 Heat Index Air
Today: 4.4
Jul: 445.8
2018 to Date: 1571.1
Heating Degree Days
2018 to Date: 1494.1
Today: 0.00 in
Yesterday: 0.00 in
Jul Snow: No Change 0.00 in
Jul Avg: 0.00 in
Diff from Avg: 0.00 in
Season Total:2 0.00 in
Snow Depth: 0.00 in
0 snow days in July
0 snow days this season.2
First Snow of Season:
Jan-15-2018
Average 1st Snow:
14 of Dec
Current: 86.8°F
High 12:45am: 91.8°F
Yesterday: 116.2°F
Record: 121.5°F
Aug-12-2016
Data Not
Available


Data Not Available

Density:
1.15 kg/m3
UV Summary/Forecast Solar Summary
High Yest:   7.1 @ 1:51 PM
Jul-21

10.4
Jul-22

10.1
Jul-23

10.9
High Yest:   981.0 @ 1:54 PM
Sun Hours Today:
00:00
   This Month: 119:13 Hrs
Rise: 6:32 am  Set: 8:34 pm
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Early Morning
YTD Avg Temp: 65.3°F
Sunrise: 6:32 am
Sunset: 8:34 pm
Moonrise: 3:34 pm
Moonset: 1:58 am
Full Moon: Jul-27-2018
New Moon: 09:58 UTC
Aug-11-2018
Updated at Midnight
Current ET: 0.20 in
7-Days Rain: 0.00 in
7-Days ET: 2.74 in
7-Day:  2.74 in water in deficit of what evaporated in last 7 days. 2.74 in
July:  5.05 in water in deficit of what evaporated this month. 5.05 in
HIGHS: LOWS:
109.4°F
Aug-3-2011
11.8°F
Jan-17-2018
Daytime Records
  108.3°F
Aug-10-2015
  16.3°F
Feb-02-2011
Nitetime Records
  96.8°F
Aug-04-2011
  13.1°F
Feb-02-2011
ICN:1 | S3C2:1 | Ajax 3.xx
ISS:Ok | CON:4.6 | RCP:98%
1 Rain season: Jan 1st to Dec 31st.   2 Snow season July 1st to June 30th.   3 Snow manually measured usually around 7AM and 7PM.   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).   6 Air Quality Index is provided by Texas Commission on Environmental Quality.   10 Historical average only to day 21 of just the month of July for this station since 2009.   11 Historical average rain this season to day 21 of July for this station since 2009.
 NWS Weather Forecast  -   Outlook Overnight & Saturday
Overnight

Overnight: Mostly clear, with a steady temperature around 85. Southwest wind around 10 mph.
Mostly Clear

Lo 85 °F
NWS forecast: Mostly clear, with a steady temperature around 85. Southwest wind around 10 mph.
Saturday

Saturday: Mostly sunny and hot, with a high near 109. West southwest wind 5 to 10 mph.
Hot

Hi 109 °F
NWS forecast: Mostly sunny and hot, with a high near 109. West southwest wind 5 to 10 mph.
 NWS Short Term Weather Forecast
Saturday
Night
Saturday Night: Mostly clear, with a low around 82. South southwest wind around 5 mph becoming northwest after midnight.
Mostly Clear
Sunday

Sunday: Sunny and hot, with a high near 107. Heat index values as high as 110. West wind around 5 mph.
Hot
Sunday
Night
Sunday Night: Mostly clear, with a low around 81. Southeast wind around 5 mph becoming calm  after midnight.
Mostly Clear
Monday

Monday: Mostly sunny and hot, with a high near 103. Northeast wind 5 to 10 mph.
Hot
Monday
Night
Monday Night: A 20 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 79. Northeast wind 5 to 15 mph.
Slight Chance
T-storms
Tuesday

Tuesday: Partly sunny, with a high near 98. East northeast wind around 5 mph.
Partly Sunny
Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 77. Northeast wind 5 to 10 mph.
Partly Cloudy
Lo 82 °F Hi 107 °F Lo 81 °F Hi 103 °F Lo 79 °F Hi 98 °F Lo 77 °F
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