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

Hazardous Weather Conditions

Current conditions at

Knoxville (KOXV)

Lat: 41.3°NLon: 93.12°WElev: 928ft.

Fair

81°F

27°C

Humidity 70%
Wind Speed S 7 mph
Barometer 29.89 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 2 Sep 11:35 pm CDT
Extended Forecast for

Melcher-Dallas IA

Heat Advisory September 2, 11:49pm until September 4, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 2, 11:49pm until September 4, 07:00pm

    NOW until 7:00pm Fri

    Heat Advisory

  • Tonight

    Low: 81 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 95. Heat index values as high as 101. South southwest wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 95 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76. South wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 97. Heat index values as high as 102. South southwest wind 7 to 10 mph.

    High: 97 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 74. South wind 5 to 7 mph.

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 93.

    High: 93 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.

    High: 93 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Clear, with a steady temperature around 81. South southwest wind around 10 mph, with gusts as high as 18 mph.
Thursday
Sunny, with a high near 95. Heat index values as high as 101. South southwest wind 9 to 13 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 76. South wind 8 to 10 mph, with gusts as high as 18 mph.
Friday
Sunny and hot, with a high near 97. Heat index values as high as 102. South southwest wind 7 to 10 mph.
Friday Night
Mostly clear, with a low around 74. South wind 5 to 7 mph.
Saturday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 93.
Saturday Night
Mostly clear, with a low around 72.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Sunday Night
Partly cloudy, with a low around 71.
Labor Day
Mostly sunny, with a high near 90.
Monday Night
Partly cloudy, with a low around 72.
Tuesday
Mostly sunny, with a high near 92.
Tuesday Night
A 40 percent chance of showers. Partly cloudy, with a low around 73.
Wednesday
A 30 percent chance of showers. Mostly sunny, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Melcher-Dallas IA
 41.23°N 93.25°W
Last Update:
11:21 pm CDT Sep 2, 2026
Forecast Valid:
11pm CDT Sep 2, 2026-6pm CDT Sep 9, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation