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 >

Hazardous Weather Conditions

Current conditions at

Niagara Falls, Niagara Falls International Airport (KIAG)

Lat: 43.11°NLon: 78.94°WElev: 587ft.

Light Rain

63°F

17°C

Humidity 87%
Wind Speed SE 5 mph
Barometer 29.65 in (1004.1 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 17 Jun 9:53 pm EDT
Extended Forecast for

South Lockport NY

Wind Advisory June 18, 02:00am until June 18, 08:00pm
Click here for hazard details and duration
Wind Advisory

  • Tonight

    Tonight: Showers and possibly a thunderstorm. Low around 61. Breezy, with a southeast wind 7 to 12 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 44 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Showers and
    Breezy

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms after 10am. Cloudy, with a high near 74. Breezy, with a west wind 22 to 28 mph, with gusts as high as 50 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Showers
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 57. West wind 14 to 16 mph, with gusts as high as 26 mph.

    Low: 57 °F

    Decreasing
    Clouds

  • Juneteenth

    Juneteenth: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Increasing clouds, with a high near 74. Breezy, with a west wind 14 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Breezy.
    Slight Chance
    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers before 8pm. Mostly clear, with a low around 55. West wind 10 to 14 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Chance
    Showers then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 74. West wind around 14 mph.

    High: 74 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 54. West wind 5 to 9 mph.

    Low: 54 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 75. West wind 5 to 7 mph.

    High: 75 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers after 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 40%.

    Low: 57 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Showers and possibly a thunderstorm. Low around 61. Breezy, with a southeast wind 7 to 12 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 44 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms after 10am. Cloudy, with a high near 74. Breezy, with a west wind 22 to 28 mph, with gusts as high as 50 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 57. West wind 14 to 16 mph, with gusts as high as 26 mph.
Juneteenth
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Increasing clouds, with a high near 74. Breezy, with a west wind 14 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers before 8pm. Mostly clear, with a low around 55. West wind 10 to 14 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Sunny, with a high near 74. West wind around 14 mph.
Saturday Night
Partly cloudy, with a low around 54. West wind 5 to 9 mph.
Sunday
Mostly sunny, with a high near 75. West wind 5 to 7 mph.
Sunday Night
A chance of showers after 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 40%.
Monday
A chance of showers before 2pm. Partly sunny, with a high near 73. Chance of precipitation is 50%.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Lockport NY
 43.16°N 78.71°W (Elev. 597 ft)
Last Update:
9:57 pm EDT Jun 17, 2026
Forecast Valid:
10pm EDT Jun 17, 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