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 Details for Nassau Flash Flood Warning  +2 additional alerts

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Flash Flood Warning FLASH FLOOD WARNING - Nassau
Flood Advisory FLOOD ADVISORY - Nassau

Regional Radar Regional IR Satellite
Radar/Satellite images courtesy of Weather Underground.
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METRIC | IMPERIAL
Updated: 07/6/2026 @ 12:15 pm   (0 sec ago)
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Colder 0.2°F than last hour.

68.2°F

---
High Today
69.1°F
11:56 AM 		Low Today
66.7°F
7:00 AM
Yest High
83.5°F
1:05 PM 		Yest Low
68.2°F
11:44 PM
Rec* High
66.0°F
1991 		Rec* Low
9.0°F
2015
* Records from Weather Underground
Overcast - Mist Overcast - Mist

Calm Wind:  SSE
0.0
Gusting to:
 0.0 mph
Current Rain Rain:
0.85 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
-0.2 of 100
This
afternoon
Rain likely
Rain likely 		Tonight

Rain likely
Rain likely 		Tuesday

Overcast
Overcast
High: 76°F Low: 64°F High: 75°F

Click here for full Forecast
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Decreased 0.2°F since last hour. 63.5°F
Last Hour: Decreased 0.2°F since last hour. 0.2°F
High 11:56 AM: 64.4°F
Low 7:00 AM: 62.0°F
Record High: 82.2°F on
Jul-25-2025
Record Low: -14.8°F on
Jan-24-2026
Wetbulb: 65.3°F
Rain Today
rain graph
Today: 0.85 in
Rate (/hr): 0.066 in
Yesterday: 0.45 in
Last 7 Days: 1.32 in
Jul Rain: 2.17 in
Jul Avg: 3.10 in
Diff from Avg: Under 0.93 in for the month 0.93 in
Season:1 14.970 in
Last YTD:1 22.09 in
67 rain days in 2026
4 days in July
0 days since last rain
Current: SSE  0.0 mph
1Hr Average: 0.1 mph
Wind Run: 1.92 miles
Wind Gust
Current: 0.0 mph
Today: 6.9 mph 8:54 AM
Month: 14.8 mph Jul-4
Year: 25.3 mph Mar-17
Record Gust: 38.0 mph
Mar-23-2024
Sunlight:
15 h 3 m 26 s
of Sunlight Yesterday
15 h 2 m 32 s
of Sunlight Today Which is 54 sec shorter than
yesterday
15 h 1 m 35 s
of Sunlight Tomorrow
 (Noon) graph (Midnight)
 Legend

Waning Gibbous
Waning Gibbous, 21 days, 13 hours, 25 minutes in cycle
61%
Illuminated
Humidity Barometer
Current: No Change 85%
Last Hour: No Change 0%
High 4:41 AM: 85%
Low 12:00 AM: 83%
Record High: 99%
Jan-9-2024
Record Low: 6%
May-11-2025
Current: No Change 30.060 inHg
Last Hour: Steady
High 12:52 AM: 30.070
Low 12:00 AM: 29.990
Record High: 30.939 inHg
Dec-14-2024
Record Low: 28.981 inHg
Feb-16-2025
Cooling Degree Days Snow3 Heat Index Air
Today: 1.4
Jul: 82.4
2026 to Date: 301.8
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: 67.9°F
High 11:56 am: 69.1°F
Yesterday: 88.3°F
Record: 114.4°F
Jul-3-2026
Quality
Index6:
58

Moderate
Density:
1.20 kg/m3
Current UV Index Current Solar Energy9
0.0
Sunburn in
720 Minutes 		Highest:
9:59 AM
1.0
42 W/m2
4%
W/m2 ⇒ SI 		High Today:
11:40 AM
 125  W/m2
Record:
1000 W/m2
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Afternoon
YTD Avg Temp: 47.7°F
Sunrise: 5:26 am
Sunset: 8:26 pm
Moonrise: 11:35 pm
Moonset: 11:56 am
Full Moon: Jun-29-2026
New Moon: 09:44 UTC
Jul-14-2026
Updated at Midnight
Current ET: 0.03 in
7-Days Rain: 1.32 in
7-Days ET: 1.16 in
7-Day: 0.159 in water in excess of what evaporated in last 7 days. 0.159 in
July: 1.18 in water in excess of what evaporated this month. 1.18 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:10 | 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
Rain likely
Rain likely
High: 76°F 		WXSIM forecast: Dense overcast. Rain likely. Precipitation showery or intermittent. Breezy and relatively cool. High 76°. UV index up to 3. Wind east around 12 mph, gusting to 19 mph. Chance of precipitation 60 percent. Precipitation mostly around a quarter of an inch.
 Tonight

Rain likely
Rain likely
Low: 64°F 		WXSIM forecast: Dense overcast. Rain likely. Precipitation showery or intermittent. Breezy. Low 64°. Wind east around 11 mph, gusting to 19 mph. Chance of precipitation 60 percent. Precipitation mostly around a quarter of an inch.
 WXSIM Short Term Weather Forecast
Tuesday

Overcast
Overcast 		Tuesday
night
Mostly Cloudy
Mostly Cloudy 		Wednesday

Mostly Cloudy
Mostly Cloudy 		Wednesday
night
Partly Cloudy
Partly Cloudy 		Thursday

Partly Cloudy
Partly Cloudy 		Thursday
night
Rain likely
Rain likely 		Friday

Thunder storm
Thunder storm
High: 75°F Low: 64°F High: 83°F Low: 66°F High: 86°F Low: 67°F High: 87°F