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

Heavy Rainfall Possible in the Upper Midwest, South Texas, and Puerto Rico and the Virgin Islands

Scattered thunderstorms and heavy rainfall may bring areas of flooding though the weekend over the Upper Midwest. A tropical disturbance will bring moderate to locally heavy rain to portions of South Texas into Saturday. Tropical Storm Erin may bring isolated flash and urban flooding, landslides or mudslides, and tropical storm conditions to Puerto Rico and the U.S. Virgin Islands. Read More >

Hazardous Weather Conditions

Current conditions at

Alliance, Alliance Municipal Airport (KAIA)

Lat: 42.06°NLon: 102.8°WElev: 3927ft.

Fair

60°F

16°C

Humidity 86%
Wind Speed NW 6 mph
Barometer 29.96 in (1009.2 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 15 Aug 4:53 am MDT
Extended Forecast for

Hyannis NE

  • Today

    Today: A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 94. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 94 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 63. South southeast wind 5 to 15 mph becoming northwest after midnight. Winds could gust as high as 20 mph.

    Low: 63 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 91. South wind 5 to 10 mph becoming west in the morning.

    High: 91 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 62. South wind 5 to 10 mph becoming north after midnight.

    Low: 62 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 90. North wind 5 to 10 mph becoming east southeast in the afternoon.

    High: 90 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 60.

    Low: 60 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before midnight. Mostly clear, with a low around 60.

    Low: 60 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

Detailed Forecast

Today
A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 94. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Tonight
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 63. South southeast wind 5 to 15 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Saturday
Mostly sunny, with a high near 91. South wind 5 to 10 mph becoming west in the morning.
Saturday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 62. South wind 5 to 10 mph becoming north after midnight.
Sunday
Mostly sunny, with a high near 90. North wind 5 to 10 mph becoming east southeast in the afternoon.
Sunday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 60.
Monday
Sunny, with a high near 93.
Monday Night
A slight chance of showers and thunderstorms before midnight. Mostly clear, with a low around 60.
Tuesday
Sunny, with a high near 91.
Tuesday Night
A slight chance of showers and thunderstorms before midnight. Mostly clear, with a low around 59.
Wednesday
Sunny, with a high near 91.
Wednesday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 61.
Thursday
Sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hyannis NE
 42.01°N 101.78°W
Last Update:
5:30 am MDT Aug 15, 2025
Forecast Valid:
5am MDT Aug 15, 2025-6pm MDT Aug 21, 2025
 
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Additional Resources

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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