Thunderstorms and Heavy Rains in the Appalachians

Multiple rounds of moderate to locally heavy rain will impact portions of the Appalachians and Mid-Atlantic, which may lead to flash flooding concerns. Thunderstorms with isolated severe wind gusts will be possible this afternoon from parts of the Southeast into the southern and central Appalachians. A multi-day heavy rain will pose a flash flood threat in New Mexico beginning Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Atlantic (KAIO)

Lat: 41.4°NLon: 95.05°WElev: 1181ft.

Overcast

63°F

17°C

Humidity 88%
Wind Speed N 8 mph
Barometer 30.09 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 21 Sep 5:15 pm CDT
Extended Forecast for

Griswold IA

  • This Afternoon

    This Afternoon: A 30 percent chance of showers.  Patchy fog.  Otherwise, cloudy, with a steady temperature around 61. Northeast wind around 7 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Chance
    Showers and
    Patchy Fog

  • Tonight

    Tonight: A chance of showers or drizzle before 8pm, then a chance of showers between 8pm and midnight.  Patchy fog.  Otherwise, cloudy, with a low around 54. East northeast wind 5 to 8 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 54 °F

    Chance
    Showers and
    Patchy Fog
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 11am.  Otherwise, cloudy, with a high near 63. East northeast wind 6 to 9 mph.

    High: 63 °F

    Patchy Fog
    then Cloudy

  • Tuesday Night

    Tuesday Night: Cloudy, with a low around 50. East wind 3 to 7 mph.

    Low: 50 °F

    Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 67. Southeast wind 3 to 8 mph.

    High: 67 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 1am.  Mostly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a high near 64. Chance of precipitation is 70%.

    High: 64 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 50 percent chance of showers.  Mostly cloudy, with a low around 56.

    Low: 56 °F

    Chance
    Showers

  • Friday

    Friday: Showers likely, mainly before 1pm.  Cloudy, with a high near 67. Chance of precipitation is 60%.

    High: 67 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
A 30 percent chance of showers. Patchy fog. Otherwise, cloudy, with a steady temperature around 61. Northeast wind around 7 mph. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A chance of showers or drizzle before 8pm, then a chance of showers between 8pm and midnight. Patchy fog. Otherwise, cloudy, with a low around 54. East northeast wind 5 to 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Patchy fog before 11am. Otherwise, cloudy, with a high near 63. East northeast wind 6 to 9 mph.
Tuesday Night
Cloudy, with a low around 50. East wind 3 to 7 mph.
Wednesday
Partly sunny, with a high near 67. Southeast wind 3 to 8 mph.
Wednesday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 54.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 64. Chance of precipitation is 70%.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 56.
Friday
Showers likely, mainly before 1pm. Cloudy, with a high near 67. Chance of precipitation is 60%.
Friday Night
A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Saturday
Showers likely. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 60.
Sunday
Mostly cloudy, with a high near 75.
Sunday Night
Partly cloudy, with a low around 60.
Monday
Partly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
Griswold IA
 41.24°N 95.15°W
2:43 pm CDT Sep 21, 2026
5pm CDT Sep 21, 2026-6pm CDT Sep 28, 2026
 
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Additional Resources

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