National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Hazardous Weather Conditions

Current conditions at

Andover, Aeroflex-Andover Airport (K12N)

Lat: 41.01°NLon: 74.74°WElev: 584ft.

63°F

17°C

Humidity 93%
Wind Speed Calm
Barometer 29.98 in (1014.6 mb)
Dewpoint 61°F (16°C)
Visibility NA
Last update 20 Aug 3:54 am EDT
Extended Forecast for

Glasser NJ

Flood Watch August 20, 12:00pm until August 21, 02:00am
Click here for hazard details and duration
Flood Watch

  • Today

    Today: Showers and thunderstorms, mainly after 2pm. High near 77. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 77 °F

    Slight Chance
    Showers then
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 9pm. Patchy fog before 2am, then patchy fog after 3am. Otherwise, mostly cloudy, with a low around 58. Northeast wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 58 °F

    T-storms
    Likely and
    Patchy Fog
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog between 7am and 8am. Otherwise, partly sunny, with a high near 77. North wind around 5 mph.

    High: 77 °F

    Patchy Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: A chance of showers after 2am. Mostly cloudy, with a low around 61. Calm wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 61 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am. Mostly cloudy, with a high near 75. East wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 75 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers, mainly before 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 62 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers likely after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.

    High: 79 °F

    Partly Sunny
    then Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely before 8pm. Partly cloudy, with a low around 58. Chance of precipitation is 60%.

    Low: 58 °F

    Showers
    Likely then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

Detailed Forecast

Today
Showers and thunderstorms, mainly after 2pm. High near 77. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
Showers and thunderstorms likely, mainly before 9pm. Patchy fog before 2am, then patchy fog after 3am. Otherwise, mostly cloudy, with a low around 58. Northeast wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Patchy fog between 7am and 8am. Otherwise, partly sunny, with a high near 77. North wind around 5 mph.
Friday Night
A chance of showers after 2am. Mostly cloudy, with a low around 61. Calm wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am. Mostly cloudy, with a high near 75. East wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
A chance of showers, mainly before 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers likely after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.
Sunday Night
Showers likely before 8pm. Partly cloudy, with a low around 58. Chance of precipitation is 60%.
Monday
Sunny, with a high near 77.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
A chance of showers. Mostly sunny, with a high near 79. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Glasser NJ
 40.98°N 74.6°W (Elev. 997 ft)
Last Update:
4:08 am EDT Aug 20, 2026
Forecast Valid:
4am 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