Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Current conditions at

Oskaloosa, Oskaloosa Municipal Airport (KOOA)

Lat: 41.23°NLon: 92.49°WElev: 840ft.

Fair

77°F

25°C

Humidity 97%
Wind Speed SW 3 mph
Barometer 30.03 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 15 Aug 8:35 am CDT
Extended Forecast for

Oskaloosa IA

Flood Watch August 15, 08:57am until August 15, 10:00am
Click here for hazard details and duration
...
  •  
    Flood Watch August 15, 08:57am until August 15, 10:00am

    NOW until 10:00am Sat

    Flood Watch

  • Today

    High: 86 °F

    Chance
    T-storms then
    Partly Sunny

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly before 4am.  Mostly cloudy, with a low around 71. Calm wind becoming west around 5 mph after midnight.  New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms before 9am.  Partly sunny, with a high near 84. North northwest wind 6 to 10 mph.

    High: 84 °F

    Slight Chance
    T-storms then
    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 63. North northwest wind 3 to 8 mph.

    Low: 63 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 83. Light northwest wind.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 85.

    High: 85 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 67. Chance of precipitation is 70%.

    Low: 67 °F

    Showers
    Likely

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms, mainly before 10am. Partly sunny, with a high near 86. South wind around 6 mph becoming west northwest in the afternoon. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 50 percent chance of showers and thunderstorms, mainly before 4am. Mostly cloudy, with a low around 71. Calm wind becoming west around 5 mph after midnight. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A 20 percent chance of showers and thunderstorms before 9am. Partly sunny, with a high near 84. North northwest wind 6 to 10 mph.
Sunday Night
Mostly clear, with a low around 63. North northwest wind 3 to 8 mph.
Monday
Sunny, with a high near 83. Light northwest wind.
Monday Night
Mostly clear, with a low around 65.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Chance of precipitation is 70%.
Wednesday
Partly sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 60.
Friday
Mostly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
Oskaloosa IA
 41.29°N 92.64°W
8:06 am CDT Aug 15, 2026
8am CDT Aug 15, 2026-6pm CDT Aug 21, 2026
 
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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