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

Tropical Storm and Storm Surge Warnings for the North Carolina Outer Banks; Heat Building in the West

Storm surge flooding and tropical storm conditions are expected in the Outer Banks beginning late Wednesday. Tropical Storm and Storm Surge Warnings are in effect. Tropical storm conditions are possible along the eastern shore of Virginia Thursday. Hurricane Erin will continue to produce life-threatening surf and rip currents along much of the east coast of the U.S. this week. Read More >

Hazardous Weather Conditions

Current conditions at

Waterloo, Waterloo Municipal Airport (KALO)

Lat: 42.55°NLon: 92.4°WElev: 873ft.

Fair

71°F

22°C

Humidity 96%
Wind Speed Calm
Barometer 30.09 in (1018.2 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 20 Aug 12:54 am CDT
Extended Forecast for

2 Miles SSE Clarksville IA

Flood Warning August 20, 01:21am until August 22, 01:00pm
Click here for hazard details and duration
Flood Warning
  •  
    Flood Warning August 20, 01:21am until August 22, 01:00pm

    NOW until 1:00pm Fri

    Flood Warning

  • Overnight

    Low: 65 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 81. Northeast wind 3 to 7 mph.

    High: 81 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 61. East wind 3 to 6 mph.

    Low: 61 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 78. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 78 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59. Light southeast wind.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

Detailed Forecast

Overnight
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 65. Light northwest wind.
Wednesday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 81. Northeast wind 3 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 61. East wind 3 to 6 mph.
Thursday
Mostly sunny, with a high near 78. Calm wind becoming east southeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 59. Light southeast wind.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81.
Friday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 57.
Saturday
Sunny, with a high near 73.
Saturday Night
Clear, with a low around 50.
Sunday
Sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 47.
Monday
Sunny, with a high near 67.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Clarksville IA
 42.75°N 92.64°W
Last Update:
10:49 pm CDT Aug 19, 2025
Forecast Valid:
1am CDT Aug 20, 2025-6pm CDT Aug 26, 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