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

Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. Read More >

Current conditions at

Atlantic (KAIO)

Lat: 41.4°NLon: 95.05°WElev: 1181ft.

Fair

70°F

21°C

Humidity 73%
Wind Speed S 9 mph
Barometer 29.76 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 12 Oct 2:35 am CDT
Extended Forecast for

Lewis IA

  • Overnight

    Overnight: Partly cloudy, with a low around 69. South wind around 11 mph.

    Low: 69 °F

    Partly Cloudy

  • Columbus Day

    Columbus Day: Partly sunny, then gradually becoming sunny, with a high near 89. Breezy, with a south wind 13 to 20 mph, with gusts as high as 28 mph.

    High: 89 °F

    Becoming
    Sunny and
    Breezy

  • Monday Night

    Monday Night: A slight chance of showers between 1am and 3am. Mostly clear, with a low around 59. Southwest wind 5 to 11 mph becoming north after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 10%.

    Low: 59 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A 10 percent chance of showers after 5pm. Increasing clouds, with a high near 80. Northeast wind 3 to 7 mph.

    High: 80 °F

    Sunny then
    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 56. North northeast wind around 9 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 69. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers before 10pm, then a slight chance of showers and thunderstorms between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 54. Chance of precipitation is 70%.

    Low: 54 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 68. Chance of precipitation is 70%.

    High: 68 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 44. Windy.

    Low: 44 °F

    Mostly Cloudy
    and Windy

Detailed Forecast

Overnight
Partly cloudy, with a low around 69. South wind around 11 mph.
Columbus Day
Partly sunny, then gradually becoming sunny, with a high near 89. Breezy, with a south wind 13 to 20 mph, with gusts as high as 28 mph.
Monday Night
A slight chance of showers between 1am and 3am. Mostly clear, with a low around 59. Southwest wind 5 to 11 mph becoming north after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 10%.
Tuesday
A 10 percent chance of showers after 5pm. Increasing clouds, with a high near 80. Northeast wind 3 to 7 mph.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 56. North northeast wind around 9 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 69. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A slight chance of showers before 10pm, then a slight chance of showers and thunderstorms between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 54. Chance of precipitation is 70%.
Thursday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 68. Chance of precipitation is 70%.
Thursday Night
Mostly cloudy, with a low around 44. Windy.
Friday
Sunny, with a high near 59. Windy.
Friday Night
Mostly clear, with a low around 35.
Saturday
Sunny, with a high near 61.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Sunny, with a high near 68. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lewis IA
 41.31°N 95.09°W
Last Update:
1:27 am CDT Oct 12, 2026
Forecast Valid:
2am CDT Oct 12, 2026-6pm CDT Oct 18, 2026
 
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