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 Details for NW Suffolk Extreme Heat Warning
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 Details for SW Suffolk Extreme Heat Warning
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 Details for NE Suffolk Extreme Heat Warning
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 Details for Suffolk Extreme Heat Warning  +1 additional alert
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 Details for Nassau Extreme Heat Warning
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 Details for SE Suffolk Heat Advisory

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Extreme Heat Warning EXTREME HEAT WARNING - NW Suffolk  - SW Suffolk  - NE Suffolk  - Suffolk  - Nassau
Heat Advisory HEAT ADVISORY - Suffolk  - SE Suffolk

Regional Radar Regional IR Satellite
Radar/Satellite images courtesy of Weather Underground.
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METRIC | IMPERIAL
Updated: 07/4/2026 @ 6:10 am   (0 sec ago)
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Colder 0.4°F than last hour.

73.9°F

---
High Today
81.7°F
12:00 AM 		Low Today
73.9°F
6:01 AM
Yest High
100.9°F
2:25 PM 		Yest Low
72.1°F
5:30 AM
Rec* High
66.0°F
1991 		Rec* Low
9.0°F
2015
* Records from Weather Underground
Clear Clear

Calm Wind:  SSE
0.0
Gusting to:
 0.0 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
3.6 of 100
Today

Partly Cloudy
Partly Cloudy 		Tonight

Thunder storm
Thunder storm 		Sunday

Thunder storm
Thunder storm
High: 96°F Low: 68°F High: 83°F

Click here for full Forecast
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Increased 0.6°F since last hour. 64.3°F
Last Hour: Increased 0.6°F since last hour. 0.6°F
High 12:22 AM: 65.8°F
Low 5:18 AM: 63.7°F
Record High: 82.2°F on
Jul-25-2025
Record Low: -14.8°F on
Jan-24-2026
Wetbulb: 67.8°F
Rain Today
rain graph
Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 0.88 in
Jul Rain: 0.83 in
Jul Avg: 3.10 in
Diff from Avg: Under 2.27 in for the month 2.27 in
Season:1 13.630 in
Last YTD:1 22.09 in
Last Rain
Time/Date: 		Jul-1-2026
at 6:11 AM
65 rain days in 2026
1 day in July
2 days since last rain
Current: SSE  0.0 mph
1Hr Average: 0.1 mph
Wind Run: 0.54 miles
Wind Gust
Current: 0.0 mph
Today: 5.8 mph 12:03 AM
Month: 9.2 mph Jul-1
Year: 25.3 mph Mar-17
Record Gust: 38.0 mph
Mar-23-2024
Sunlight:
15 h 5 m 3 s
of Sunlight Yesterday
15 h 4 m 17 s
of Sunlight Today Which is 46 sec shorter than
yesterday
15 h 3 m 26 s
of Sunlight Tomorrow
 (Noon) graph (Midnight)
 Legend

Waning Gibbous
Waning Gibbous, 19 days, 7 hours, 17 minutes in cycle
81%
Illuminated
Humidity Barometer
Current: Increased 2% since last hour. 72%
Last Hour: Increased 2% since last hour. 2%
High 6:05 AM: 72%
Low 12:00 AM: 58%
Record High: 99%
Jan-9-2024
Record Low: 6%
May-11-2025
Current: Rising 0.01 inHg/hr 29.870 inHg
Last Hour: Steady
High 12:03 AM: 29.890
Low 4:26 AM: 29.850
Record High: 30.939 inHg
Dec-14-2024
Record Low: 28.981 inHg
Feb-16-2025
Cooling Degree Days Snow3 Heat Index Air
Today: 3.7
Jul: 55.3
2026 to Date: 274.6
Heating Degree Days
2026 to Date: 3518.1
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: 4.00 in
0 snow days in July
0 snow days this season.2
First Snow of Season:
Jan-1-2026
Average 1st Snow:
19 of Dec
Current: 75.5°F
High 12:00 am: 83.7°F
Yesterday: 114.4°F
Record: 114.4°F
Jul-3-2026
Quality
Index6:
41

Good
Density:
1.18 kg/m3
Current UV Index Current Solar Energy9
0.0
Sunburn in
720 Minutes 		Highest:
12:00 AM
0.0
20 W/m2
57%
W/m2 ⇒ SI 		High Today:
6:09 AM
 20  W/m2
Record:
1000 W/m2
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Morning
YTD Avg Temp: 47.3°F
Sunrise: 5:25 am
Sunset: 8:26 pm
Moonrise: 10:53 pm
Moonset: 9:48 am
Full Moon: Jun-29-2026
New Moon: 09:44 UTC
Jul-14-2026
Updated at Midnight
Current ET: 0.06 in
7-Days Rain: 0.88 in
7-Days ET: 1.16 in
7-Day: 0.281 in water in deficit of what evaporated in last 7 days. 0.281 in
July: 0.16 in water in excess of what evaporated this month. 0.16 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 Today & Tonight
Today

Partly Cloudy
Partly Cloudy
High: 96°F 		WXSIM forecast: Sunny in the morning, becoming partly cloudy in the afternoon. A chance of rain in the afternoon. Precipitation showery or intermittent. Very hot. High 96°. UV index up to 9. Wind west around 7 mph, gusting to 17 mph. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch.
 Tonight

Thunder storm
Thunder storm
Low: 68°F 		WXSIM forecast: Cloudy. Patchy light fog in the evening. Rain likely in the evening, then a chance of rain after midnight. Scattered thundershowers possible. Low 68°. Wind west-northwest around 4 mph. Chance of precipitation 70 percent. Precipitation mostly around half an inch.
 WXSIM Short Term Weather Forecast
Sunday

Thunder storm
Thunder storm 		Sunday
night
Thunder storm
Thunder storm 		Monday

Rain likely
Rain likely 		Monday
night
Thunder storm
Thunder storm 		Tuesday

Rain likely
Rain likely 		Tuesday
night
Cloudy
Cloudy 		Wednesday

Mostly Cloudy
Mostly Cloudy
High: 83°F Low: 66°F High: 78°F Low: 66°F High: 74°F Low: 62°F High: 83°F