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Extreme Heat Watch EXTREME HEAT WATCH - NW Suffolk  - SW Suffolk  - NE Suffolk  - SE Suffolk  - Suffolk  - Nassau

Regional Radar Regional IR Satellite
Radar/Satellite images courtesy of Weather Underground.
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METRIC | IMPERIAL
Updated: 06/30/2026 @ 1:10 pm   (0 sec ago)
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Warmer 0.3°F than last hour.

83.8°F

Heat Index:  86.9°F
---
High Today
85.1°F
10:26 AM 		Low Today
61.9°F
5:08 AM
Yest High
88.2°F
1:16 PM 		Yest Low
60.6°F
5:39 AM
Rec* High
66.0°F
1991 		Rec* Low
9.0°F
2015
* Records from Weather Underground
Clear Clear

Wind from SE Wind:  SE
2.9
Gusting to:
 4.5 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
11.7 of 100
This
afternoon
Mostly Cloudy
Mostly Cloudy 		Tonight

Partly Cloudy
Partly Cloudy 		Wednesday

Partly Cloudy
Partly Cloudy
High: 92°F Low: 69°F High: 92°F

Click here for full Forecast
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Increased 0.8°F since last hour. 67.9°F
Last Hour: Increased 0.8°F since last hour. 0.8°F
High 10:23 AM: 68.8°F
Low 5:08 AM: 56.7°F
Record High: 82.2°F on
Jul-25-2025
Record Low: -14.8°F on
Jan-24-2026
Wetbulb: 73.3°F
Rain Today
rain graph
Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 0.31 in
Jun Rain: 1.04 in
Jun Avg: 2.16 in
Diff from Avg: Under 1.12 in for the month 1.12 in
Season:1 12.800 in
Last YTD:1 20.93 in
Last Rain
Time/Date: 		Jun-27-2026
at 9:19 PM
64 rain days in 2026
13 days in June
2 days since last rain
Current: SE  2.9 mph
1Hr Average: 1.4 mph
Wind Run: 4.20 miles
Wind Gust
Current: 4.5 mph
Today: 8.1 mph 11:31 AM
Month: 17.3 mph Jun-6
Year: 25.3 mph Mar-17
Record Gust: 38.0 mph
Mar-23-2024
Sunlight:
15 h 7 m 36 s
of Sunlight Yesterday
15 h 7 m 3 s
of Sunlight Today Which is 33 sec shorter than
yesterday
15 h 6 m 27 s
of Sunlight Tomorrow
 (Noon) graph (Midnight)
 Legend

Waning Gibbous
Waning Gibbous, 15 days, 14 hours, 20 minutes in cycle
99%
Illuminated
Humidity Barometer
Current: Increased 1% since last hour. 59%
Last Hour: Increased 1% since last hour. 1%
High 5:57 AM: 84%
Low 11:28 AM: 56%
Record High: 99%
Jan-9-2024
Record Low: 6%
May-11-2025
Current: Falling 0.02 inHg/hr 30.070 inHg
Last Hour: Falling slowly
High 12:49 AM: 30.110
Low 12:45 PM: 30.070
Record High: 30.939 inHg
Dec-14-2024
Record Low: 28.981 inHg
Feb-16-2025
Cooling Degree Days Snow3 Heat Index Air
Today: 0.9
Jun: 165.9
2026 to Date: 210.3
Heating Degree Days
2026 to Date: 3518.3
Today: 0.00 in
Yesterday: 0.00 in
Jun Snow: No Change 0.00 in
Jun Avg: 0.00 in
Diff from Avg: 0.00 in
Season Total:2 53.60 in
Snow Depth: 4.00 in
0 snow days in June
9 snow days this season.2
First Snow of Season:
Dec-14-2025
Average 1st Snow:
19 of Dec
Current: 86.9°F
High 10:26 am: 88.8°F
Yesterday: 92.1°F
Record: 111.7°F
Jul-25-2025
Quality
Index6:
49

Good
Density:
1.16 kg/m3
Current UV Index Current Solar Energy9
6.0
Sunburn in
19 Minutes 		Highest:
10:29 AM
7.0
665 W/m2
67%
W/m2 ⇒ SI 		High Today:
10:29 AM
 727  W/m2
Record:
1000 W/m2
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Afternoon
YTD Avg Temp: 46.6°F
Sunrise: 5:23 am
Sunset: 8:27 pm
Moonrise: 8:50 pm
Moonset: 5:33 am
Full Moon: Jun-29-2026
New Moon: 09:44 UTC
Jul-14-2026
Updated at Midnight
Current ET: 0.16 in
7-Days Rain: 0.31 in
7-Days ET: 0.98 in
7-Day: 0.666 in water in deficit of what evaporated in last 7 days. 0.666 in
June: 3.95 in water in deficit of what evaporated this month. 3.95 in
HIGHS: LOWS:
101.5°F
Jun-24-2025 		-2.4°F
Jan-31-2026
Daytime Records
  97.7°F°F
Jun-24-2025 		  11.8°F°F
Feb-07-2026
Nitetime Records
  82.6°F°F
Jun-26-2025 		  6.3°F°F
Feb-08-2026
ICN:0 | S3C2:6 | Ajax 3.xx
ISS:Ok |
1 Rain season: Jan 1st to Dec 31st.   2 Snow season July 1st to June 30th.   3 Updated at 7:00 AM Daily..   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 Source: New York State Department of Environmental Conservation.   9 Solar Index represents either an absolute scale of solar energy (W/m²) using the station’s recorded maximum or a percentage of computed theoretical solar maximum using the station’s location and time of day. These indices differ most when the sun is low on the horizon. The current scale is shown, and will toggle if it or the icon is clicked.  
 WXSIM Weather Forecast  -   Outlook This afternoon & Tonight
This
afternoon
Mostly Cloudy
Mostly Cloudy
High: 92°F 		WXSIM forecast: Mostly cloudy. Hot. High 92°. UV index up to 7. Wind southwest around 9 mph, gusting to 19 mph.
 Tonight

Partly Cloudy
Partly Cloudy
Low: 69°F 		WXSIM forecast: Partly cloudy in the evening, becoming partly to mostly cloudy after midnight. A slight chance of rain after midnight. Low 69°. Wind southwest around 10 mph, gusting to 19 mph. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch.
 WXSIM Short Term Weather Forecast
Wednesday

Partly Cloudy
Partly Cloudy 		Wednesday
night
Partly Cloudy
Partly Cloudy 		Thursday

Sunny Hot!
Sunny
Hot! 		Thursday
night
Clear
Clear 		Friday

Sunny Hot!
Sunny
Hot! 		Friday
night
Fog
Fog 		Saturday

Partly Cloudy Hot!
Partly Cloudy
Hot!
High: 92°F Low: 72°F High: 96°F Low: 75°F High: 98°F Low: 75°F High: 95°F