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

Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Hazardous Weather Conditions

Current conditions at

Alliance, Alliance Municipal Airport (KAIA)

Lat: 42.06°NLon: 102.8°WElev: 3927ft.

Fair

81°F

27°C

Humidity 62%
Wind Speed N 12 mph
Barometer 30.02 in (1012.2 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 17 Aug 10:53 am MDT
Extended Forecast for

Hyannis NE

  • Today

    Today: Sunny, with a high near 91. West wind 5 to 10 mph becoming east southeast in the afternoon.

    High: 91 °F

    Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 11pm. Mostly clear, with a low around 59. Southeast wind 5 to 10 mph becoming north in the evening.

    Low: 59 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 92. North northwest wind 5 to 10 mph becoming southeast in the afternoon.

    High: 92 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly clear, with a low around 59. East southeast wind 5 to 10 mph becoming south southwest after midnight. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. South southwest wind 5 to 10 mph becoming east southeast in the afternoon.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 91. West wind 5 to 10 mph becoming east southeast in the afternoon.
Tonight
A 20 percent chance of showers and thunderstorms before 11pm. Mostly clear, with a low around 59. Southeast wind 5 to 10 mph becoming north in the evening.
Monday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 92. North northwest wind 5 to 10 mph becoming southeast in the afternoon.
Monday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly clear, with a low around 59. East southeast wind 5 to 10 mph becoming south southwest after midnight. Chance of precipitation is 30%.
Tuesday
Sunny, with a high near 89. South southwest wind 5 to 10 mph becoming east southeast in the afternoon.
Tuesday Night
Mostly clear, with a low around 61.
Wednesday
Sunny, with a high near 90.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Sunny, with a high near 94.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 56.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 81.
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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:
10:59 am MDT Aug 17, 2025
Forecast Valid:
11am MDT Aug 17, 2025-6pm MDT Aug 23, 2025
 
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