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

Flooding Possible in the Southwest U.S.; Coastal Storm to Impact the East

Heavy to excessive rainfall is expected today into Wednesday over New Mexico into far west Texas. Flash flooding and debris flows in wildfire burn areas will be possible. A strong coastal storm will develop off the Mid-Atlantic coast Wednesday, intensifying toward southern New England this weekend. Significant coastal flooding, strong rip currents, and beach erosion from high surf expected. Read More >

Current conditions at

Knoxville (KOXV)

Lat: 41.3°NLon: 93.12°WElev: 928ft.

Overcast

61°F

16°C

Humidity 94%
Wind Speed NE 8 mph
Barometer 30.24 in
Dewpoint 59°F (15°C)
Visibility 9.00 mi
Last update 22 Sep 3:55 pm CDT
Extended Forecast for

Marysville IA

  • This Afternoon

    This Afternoon: A slight chance of drizzle. Patchy fog. Otherwise, mostly cloudy, with a high near 61. East wind around 7 mph.

    High: 61 °F

    Slight Chance
    Drizzle and
    Patchy Fog

  • Tonight

    Tonight: A slight chance of drizzle before 7pm. Mostly cloudy, with a low around 50. East northeast wind around 6 mph becoming calm after midnight.

    Low: 50 °F

    Slight Chance
    Drizzle then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 69. East wind 3 to 5 mph.

    High: 69 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54. Light east wind.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 67. Light east southeast wind.

    High: 67 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of showers. Mostly cloudy, with a high near 68.

    High: 68 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.

    Low: 58 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers likely, mainly before 1pm. Cloudy, with a high near 66. Chance of precipitation is 60%.

    High: 66 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
A slight chance of drizzle. Patchy fog. Otherwise, mostly cloudy, with a high near 61. East wind around 7 mph.
Tonight
A slight chance of drizzle before 7pm. Mostly cloudy, with a low around 50. East northeast wind around 6 mph becoming calm after midnight.
Wednesday
Mostly sunny, with a high near 69. East wind 3 to 5 mph.
Wednesday Night
Partly cloudy, with a low around 54. Light east wind.
Thursday
Mostly cloudy, with a high near 67. Light east southeast wind.
Thursday Night
Mostly cloudy, with a low around 57.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 68.
Friday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.
Saturday
Showers likely, mainly before 1pm. Cloudy, with a high near 66. Chance of precipitation is 60%.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 58.
Sunday
Partly sunny, with a high near 74.
Sunday Night
Partly cloudy, with a low around 59.
Monday
Partly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marysville IA
 41.18°N 92.94°W
Last Update:
2:16 pm CDT Sep 22, 2026
Forecast Valid:
4pm CDT Sep 22, 2026-6pm CDT Sep 28, 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