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Hazardous Weather Conditions

Current conditions at

Knoxville (KOXV)

Lat: 41.3°NLon: 93.12°WElev: 928ft.

Fog/Mist

79°F

26°C

Humidity 100%
Wind Speed Calm
Barometer 29.87 in
Dewpoint 79°F (26°C)
Visibility 6.00 mi
Heat Index84°F (29°C)
Last update 26 Jul 4:35 am CDT
Extended Forecast for

4 Miles NW Marysville IA

Extreme Heat Watch July 26, 09:00pm until July 27, 10:00pm
Extreme Heat Warning July 26, 12:00pm until July 26, 09:00pm
Click here for hazard details and duration
Extreme Heat Watch
Extreme Heat Warning

  • Overnight

    Overnight: A 10 percent chance of showers after 5am. Mostly cloudy, with a low around 74. Light west southwest wind.

    Low: 74 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers before 7am, then a slight chance of showers and thunderstorms between 7am and 9am. Partly sunny and hot, with a high near 98. Heat index values as high as 113. Light southwest wind becoming west southwest 5 to 9 mph in the morning. Chance of precipitation is 20%.

    High: 98 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 78. South southwest wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 78 °F

    Partly Cloudy

  • Monday

    Monday: Sunny and hot, with a high near 97. Heat index values as high as 109. Southwest wind around 10 mph, with gusts as high as 18 mph.

    High: 97 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 73. West northwest wind 5 to 7 mph.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

Overnight
A 10 percent chance of showers after 5am. Mostly cloudy, with a low around 74. Light west southwest wind.
Sunday
A slight chance of showers before 7am, then a slight chance of showers and thunderstorms between 7am and 9am. Partly sunny and hot, with a high near 98. Heat index values as high as 113. Light southwest wind becoming west southwest 5 to 9 mph in the morning. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 78. South southwest wind 9 to 11 mph, with gusts as high as 21 mph.
Monday
Sunny and hot, with a high near 97. Heat index values as high as 109. Southwest wind around 10 mph, with gusts as high as 18 mph.
Monday Night
Mostly clear, with a low around 73. West northwest wind 5 to 7 mph.
Tuesday
Mostly sunny, with a high near 90.
Tuesday Night
Partly cloudy, with a low around 68.
Wednesday
Sunny, with a high near 91.
Wednesday Night
Mostly clear, with a low around 68.
Thursday
Mostly sunny, with a high near 90.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 66.
Saturday
Sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Marysville IA
 41.21°N 93.02°W
Last Update:
1:56 am CDT Jul 26, 2026
Forecast Valid:
4am CDT Jul 26, 2026-6pm CDT Aug 1, 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