Widespread Showers in the Eastern US; Severe Thunderstorms in the Plains; Heatwave in the Desert Southwest

Widespread showers and thunderstorms across much of the central and eastern U.S. will produce areas of excessive rainfall, especially in the southern Mid-Atlantic states. Scattered severe thunderstorms are expected from Montana into portions of the central/southern Plains this weekend. A heatwave will build in the Desert Southwest, in parts of Arizona, southeastern California, and southern Nevada. Read More >

Hazardous Weather Conditions

Current conditions at

Atlantic (KAIO)

Lat: 41.4°NLon: 95.05°WElev: 1181ft.

Partly Cloudy

88°F

31°C

Humidity 52%
Wind Speed S 13 mph
Barometer 30.00 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 15 Jun 2:55 pm CDT
Extended Forecast for

Griswold IA

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 87. South wind around 8 mph.

    High: 87 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm.  Partly cloudy, with a low around 66. East southeast wind 5 to 7 mph.

    Low: 66 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 90. South wind 6 to 13 mph, with gusts as high as 18 mph.

    High: 90 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 68. South wind 6 to 11 mph.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm.  Mostly cloudy, with a high near 84. West southwest wind 6 to 10 mph becoming east northeast in the afternoon. Winds could gust as high as 18 mph.  Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.

    High: 84 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm.  Low around 63. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 63 °F

    T-storms then
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly before 1pm.  Partly sunny, with a high near 81.

    High: 81 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. South wind around 8 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 66. East southeast wind 5 to 7 mph.
Monday
Mostly sunny, with a high near 90. South wind 6 to 13 mph, with gusts as high as 18 mph.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68. South wind 6 to 11 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 84. West southwest wind 6 to 10 mph becoming east northeast in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Tuesday Night
Showers and possibly a thunderstorm. Low around 63. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 59.
Juneteenth
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 65.
Friday
Sunny, with a high near 92. Windy.
Friday Night
Mostly clear, with a low around 73. Breezy.
Saturday
Sunny, with a high near 94. Windy.
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ABOUT THIS FORECAST

 
Point Forecast:
Griswold IA
 41.24°N 95.15°W
2:54 pm CDT Jun 15, 2025
3pm CDT Jun 15, 2025-6pm CDT Jun 21, 2025
 
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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