National Weather Service

News Headlines

National Weather Service Flood Inundation Mapping Available for Iowa in September 2025

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Knoxville (KOXV)

Lat: 41.3°NLon: 93.12°WElev: 928ft.

Fair

70°F

21°C

Humidity	64%
Wind Speed	W 9 mph
Barometer	29.69 in
Dewpoint	57°F (14°C)
Visibility	10.00 mi
Last update	18 Oct 10:55 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

4 Miles WNW Marysville IA

Today
High: 77 °F
Increasing
Clouds
Tonight
Low: 45 °F
Showers
Likely and
Breezy
Sunday
High: 62 °F
Sunny
Sunday Night
Low: 45 °F
Clear
Monday
High: 70 °F
Sunny and
Breezy
Monday Night
Low: 45 °F
Mostly Clear
Tuesday
High: 58 °F
Sunny and
Breezy
Tuesday Night
Low: 36 °F
Clear
Wednesday
High: 65 °F
Sunny

Detailed Forecast

Today

Increasing clouds, with a high near 77. West wind 7 to 9 mph.

Tonight

Showers and thunderstorms likely before 1am, then a slight chance of showers between 1am and 2am. Cloudy, then gradual clearing toward daybreak, with a low around 45. Breezy, with a northwest wind 14 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday

Sunny, with a high near 62. West northwest wind 13 to 15 mph, with gusts as high as 26 mph.

Sunday Night

Clear, with a low around 45. West wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 20 mph.

Monday

Sunny, with a high near 70. Breezy, with a south wind 14 to 17 mph becoming west in the afternoon. Winds could gust as high as 29 mph.

Monday Night

Mostly clear, with a low around 45.

Tuesday

Sunny, with a high near 58. Breezy.

Tuesday Night

Clear, with a low around 36.