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

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Hazardous Weather Conditions

Current conditions at

Waterloo, Waterloo Municipal Airport (KALO)

Lat: 42.55°NLon: 92.4°WElev: 873ft.

A Few Clouds

69°F

21°C

Humidity 90%
Wind Speed S 10 mph
Barometer 29.97 in (1014.6 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 15 Aug 6:54 pm CDT
Extended Forecast for

Dike IA

Heat Advisory August 16, 12:00pm until August 16, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 70. South southeast wind around 8 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A 10 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 92. Heat index values as high as 103. South wind 8 to 11 mph, with gusts as high as 18 mph.

    High: 92 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 71. South wind 6 to 8 mph.

    Low: 71 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. South wind 6 to 10 mph.

    High: 90 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 71. South southeast wind around 9 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 88. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.

    High: 82 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 70. South southeast wind around 8 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A 10 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 92. Heat index values as high as 103. South wind 8 to 11 mph, with gusts as high as 18 mph.
Saturday Night
Mostly clear, with a low around 71. South wind 6 to 8 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. South wind 6 to 10 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 71. South southeast wind around 9 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 88. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Tuesday Night
Partly cloudy, with a low around 65.
Wednesday
Mostly sunny, with a high near 78.
Wednesday Night
Partly cloudy, with a low around 61.
Thursday
Sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 61.
Friday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dike IA
 42.47°N 92.61°W
Last Update:
7:23 pm CDT Aug 15, 2025
Forecast Valid:
7pm CDT Aug 15, 2025-6pm CDT Aug 22, 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