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

Centerville Municipal Airport (KTVK)

Lat: 40.68°NLon: 92.9°WElev: 1030ft.

Overcast

77°F

25°C

Humidity 100%
Wind Speed E 8 mph
Barometer 30.01 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 15 Aug 12:15 am CDT
Extended Forecast for

Mystic IA

Flood Watch August 15, 12:26am until August 15, 10:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch August 15, 12:26am until August 15, 10:00am

    NOW until 10:00am Sat

    Flood Watch

  • Overnight

    Low: 77 °F

    T-storms
    Likely and
    Patchy Fog

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly before 8am.  Partly sunny, with a high near 92. Heat index values as high as 105. South wind 7 to 10 mph becoming west in the afternoon.  New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 92 °F

    Chance
    T-storms then
    Partly Sunny

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly after 4am.  Mostly cloudy, with a low around 71. Light north wind.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    T-storms
    Likely

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly between 7am and 1pm.  Partly sunny, with a high near 84. Calm wind becoming north northwest 5 to 8 mph in the morning.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 64. North wind 5 to 8 mph becoming calm  in the evening.

    Low: 64 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Monday Night

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

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

Detailed Forecast

Overnight
Showers and thunderstorms likely, mainly between 2am and 4am, then showers likely and possibly a thunderstorm after 4am. Patchy fog after 2am. Otherwise, mostly cloudy, with a steady temperature around 77. East southeast wind 5 to 7 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A 30 percent chance of showers and thunderstorms, mainly before 8am. Partly sunny, with a high near 92. Heat index values as high as 105. South wind 7 to 10 mph becoming west in the afternoon. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and thunderstorms likely, mainly after 4am. Mostly cloudy, with a low around 71. Light north wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A 30 percent chance of showers and thunderstorms, mainly between 7am and 1pm. Partly sunny, with a high near 84. Calm wind becoming north northwest 5 to 8 mph in the morning. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Partly cloudy, with a low around 64. North wind 5 to 8 mph becoming calm in the evening.
Monday
Sunny, with a high near 84.
Monday Night
Mostly clear, with a low around 65.
Tuesday
Mostly sunny, with a high near 88.
Tuesday Night
A chance of showers, with thunderstorms also possible after 1am. Partly cloudy, with a low around 69. Chance of precipitation is 50%.
Wednesday
Partly sunny, with a high near 83.
Wednesday Night
Partly cloudy, with a low around 64.
Thursday
Partly sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 79.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Mystic IA
 40.77°N 92.94°W
9:57 pm CDT Aug 14, 2026
12am CDT Aug 15, 2026-6pm CDT Aug 21, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database