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Mahwah, NJ 07430 Weather
Current conditions
Observed at Caldwell, Essex County Airport · 33 min ago
Forecast
10-day-
Tonight
Clear. Low around 41, with temperatures rising to around 43 overnight. North wind around 9 mph, with gusts as high as 26 mph.
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Wednesday
Sunny. High near 62, with temperatures falling to around 60 in the afternoon. North wind 8 to 13 mph, with gusts as high as 24 mph.
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Wednesday Night
Mostly clear, with a low around 39. North wind 7 to 10 mph, with gusts as high as 21 mph.
National Weather Service forecast updated 6 hrs ago.
Hourly
Hourly forecast- Now53°
- 10 PM51°
- 11 PM49°
- Wed12 AM47°
- 1 AM46°
- 2 AM45°
- 3 AM44°
- 4 AM43°
- 5 AM43°
- 6 AM41°
- 7 AM41°
- 8 AM41°
- 9 AM44°
- 10 AM49°
- 11 AM53°
- 12 PM56°
- 1 PM58°
- 2 PM60°
- 3 PM61°
- 4 PM61°
- 5 PM60°
- 6 PM57°
- 7 PM53°
- 8 PM51°
10-day forecast
Details- TonightOct 20Clear41°
- WedOct 21Sunny39°62°
- ThuOct 22Sunny37°65°
- FriOct 23Sunny36°56°
- SatOct 24Sunny38°59°
- SunOct 25Sunny43°64°
- MonOct 26Sunny46°68°
- TueOct 27Mostly Sunny62°
- WedOct 28Rain0.14 in44°51°
- ThuOct 29Partly cloudy40°54°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
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Air quality
Air quality is satisfactory, and air pollution poses little or no risk.
Forecast
- TueGood (38)
- WedGood (34)
New York City Region, NY reporting area · 53 min ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Nearby
- Manhattan 38 km
- The Bronx 37 km
- Newark 38 km
- Jersey City 40 km
- Yonkers 29 km
- Paterson 18 km
- Greenburgh 29 km
- Clifton 25 km
- New Rochelle 39 km
- Passaic 25 km
- Union City 36 km
- Mount Vernon 35 km
Forecasters' discussion
From the National Weather Service office in OKX, issued 2 hrs ago
What Has Changed
Changes to SCAs and gale warnings. Otherwise, no other significant changes at this time.
Key Messages
1) Mainly dry and breezy weather conditions are expected through Thursday of this week. Gusty NE flow through middle of week becomes less gusty and more northerly Thursday.
2) Brief minor coastal flooding for the high tide cycle Wednesday evening for some spots, and possibly again for at least the Thursday morning high tide cycle.
3) Strong high pressure will set the stage for much lighter winds Friday into early next week as well as a gradual warming trend.
Key Message 1
The nor'easter well southeast of Long Island is expected to slow down through the middle of this week. In the mid to upper levels, there will be a lack of steering flow as the geopotential height gradient is loose. This gradient tightens Thursday with more mid level flow with a more northwest to southeast orientation.
A deepening upper level trough approaching from SE Canada Thursday will steer the nor'easter offshore much farther out into the Atlantic thereafter through Thursday night. Thursday will still be breezy but not as much as the previous day. A dry cold frontal passage is expected.
With the center of high pressure staying north of the region and low pressure strengthening well southeast of Long Island, the pressure gradient will remain steep to allow for NE gusty winds through the middle of this week. Highest and most frequent gusts will be along the coast and less gusts and lower magnitude of gusts farther away from the coast going farther inland. Gusts forecast mainly in the range of 25 to 35 mph but some localized occasional peak gusts up to around 40 mph will be possible especially along the immediate coastline.
Now with the winds picking up, and the continuous flow, that is building the water heights with fetch. Increasing outer waves of 10 to 12 ft but with easterly component to the swell, which will really cut down on the breaking waves to the shore to more near the 4 to 7 ft range, overall on average under high surf advisory thresholds.
Most locations are expected to remain dry with this low passing well offshore but extreme eastern locations, such as the Twin Forks of Long Island and eastern New London CT could briefly have rain showers Wednesday night into early Thursday morning. Forecast rain amounts are under a quarter of an inch.
With boundary layer winds staying up and mixed, less of a diurnal temperature range is expected with temperatures through Thursday night. Forecast highs in the upper 50s to lower 60s Wednesday and more into the 60s for Thursday. Forecast lows mainly in mid 30s to 40s range for tonight through Thursday night.
Outlook For 00z Thursday Through Sunday
Thursday and Friday: VFR. N winds G15-20kt.
Saturday and Sunday: VFR.
Detailed information, including hourly TAF wind component forecasts, can be found at: https:/www.weather.gov/zny/n90
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.