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

Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Current conditions at

Andover, Aeroflex-Andover Airport (K12N)

Lat: 41.01°NLon: 74.74°WElev: 584ft.

67°F

19°C

Humidity 91%
Wind Speed Vrbl 5 mph
Barometer 29.73 in (1005.9 mb)
Dewpoint 64°F (18°C)
Visibility NA
Last update 18 Jun 3:54 am EDT
Extended Forecast for

2 Miles NNW Johnsonburg NJ

  • Overnight

    Overnight: A slight chance of showers before 5am. Cloudy, with a low around 62. South wind around 5 mph. Chance of precipitation is 20%.

    Low: 62 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Showers and thunderstorms, mainly before 2pm. High near 85. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Showers then
    Chance
    Showers and
    Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 62. West wind 5 to 10 mph, with gusts as high as 25 mph.

    Low: 62 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Partly sunny, then gradually becoming sunny, with a high near 82. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 82 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 59. West wind around 5 mph becoming calm.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: A chance of showers after 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.

    Low: 59 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
A slight chance of showers before 5am. Cloudy, with a low around 62. South wind around 5 mph. Chance of precipitation is 20%.
Thursday
Showers and thunderstorms, mainly before 2pm. High near 85. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Partly cloudy, with a low around 62. West wind 5 to 10 mph, with gusts as high as 25 mph.
Juneteenth
Partly sunny, then gradually becoming sunny, with a high near 82. West wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 59. West wind around 5 mph becoming calm.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Sunny, with a high near 82.
Sunday Night
A chance of showers after 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.
Monday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 76. Chance of precipitation is 80%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 50%.
Tuesday
Mostly sunny, with a high near 81.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Johnsonburg NJ
 40.99°N 74.9°W (Elev. 515 ft)
Last Update:
4:08 am EDT Jun 18, 2026
Forecast Valid:
4am EDT Jun 18, 2026-6pm EDT Jun 24, 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