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Areas of Severe Thunderstorms and Heat

Scattered severe thunderstorms and excessive rainfall are possible today in the Mid Atlantic, posing a risk for damaging winds and isolated flash flooding. Extreme Heat Warnings are in effect today for northeast Texas into southern Oklahoma and Arkansas. Extreme Heat Warnings are also in effect for the Desert Southwest today into Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

Monmouth Executive Airport (KBLM)

Lat: 40.18°NLon: 74.13°WElev: 157ft.

Overcast

79°F

26°C

Humidity 79%
Wind Speed SE 5 mph
Barometer 30.02 in (1016.5 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 20 Aug 12:56 pm EDT
Extended Forecast for

Wanamassa NJ

Flood Watch August 20, 01:27pm until August 21, 02:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch August 20, 01:27pm until August 21, 02:00am

    NOW until 2:00am Fri

    Flood Watch

  • This Afternoon

    High: 83 °F

    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 4am, then a chance of showers. Some of the storms could produce heavy rainfall. Low around 65. Southeast wind around 5 mph becoming northeast after midnight. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.

    Low: 65 °F

    Heavy Rain
    then Chance
    Showers

  • Friday

    Friday: A slight chance of showers between 8am and 2pm. Mostly cloudy, with a high near 78. North wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 78 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers, mainly after 5am. Increasing clouds, with a low around 67. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 67 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 78. East wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 78 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 66 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 50%.

    High: 83 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 64. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    T-storms then
    Mostly Clear

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. High near 83. Southeast wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
Showers and thunderstorms before 4am, then a chance of showers. Some of the storms could produce heavy rainfall. Low around 65. Southeast wind around 5 mph becoming northeast after midnight. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.
Friday
A slight chance of showers between 8am and 2pm. Mostly cloudy, with a high near 78. North wind 5 to 10 mph. Chance of precipitation is 20%.
Friday Night
A chance of showers, mainly after 5am. Increasing clouds, with a low around 67. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Showers likely, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 78. East wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
Showers likely and possibly a thunderstorm before 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Sunday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
Monday
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
Mostly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Wanamassa NJ
 40.23°N 74.03°W (Elev. 43 ft)
Last Update:
1:00 pm EDT Aug 20, 2026
Forecast Valid:
1pm EDT Aug 20, 2026-6pm EDT Aug 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation