On July 7, 2015, NWS implemented changes to the icons depicted on all of its point-forecast pages. Changes include new icon images with increased clarity, 6-hour increments for rapidly changing weather and new color blocks to highlight forecast hazards.

A page depicting all of the new icon images can be accessed here: www.weather.gov/forecast-icons

Changes to the icons were based on analysis of 6,700 public comments collected in 2014. Also, many of these changes are based on the results of a research project led by the National Center for Atmospheric Research.

Users are encouraged to continue to provide comments regarding these changes via email at icons@noaa.gov. NWS will continue to analyze incoming feedback and refine the icons as necessary. Any substantial change to the icons will be facilitated through the NWS public comment/review process.

Active weather from Northern Rockies to Upper Midwest

A storm system in the northern U.S. will bring a variety of weather across several states from the Northern Rockies to the Upper Midwest on Saturday. Several inches of early-season snow are forecast in the higher elevations of Idaho and western Montana. Locally-heavy rain will accompany strong thunderstorms in the northern Plains and Upper Midwest.
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Current conditions at

Knoxville (KOXV)

Lat: 41.3°NLon: 93.12°WElev: 928ft.

A Few Clouds

24°C

75°F

Humidity 83%
Wind Speed SE 7 km/h
Barometer 29.98 in
Dewpoint 21°C (70°F)
Visibility 16 km
Last update 5 Sep 12:15 am CDT
Extended Forecast for

Knoxville IA

  • Overnight

    Overnight: Partly cloudy, with a low around 22. South wind around 10 km/h.

    Partly Cloudy

    Low: 22 °C

  • Saturday

    Saturday: Mostly sunny, with a high near 32. South wind 10 to 15 km/h increasing to 16 to 21 km/h in the afternoon.

    Mostly Sunny

    High: 32 °C

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 23. South wind 10 to 13 km/h.

    Partly Cloudy

    Low: 23 °C

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 32. South wind 13 to 18 km/h increasing to 19 to 24 km/h in the afternoon. Winds could gust as high as 34 km/h.

    Mostly Sunny
    then Slight
    Chance
    T-storms

    High: 32 °C

  • Sunday
    Night

    Sunday Night: Showers and thunderstorms.  Low around 22. South wind 10 to 16 km/h.  Chance of precipitation is 80%. New rainfall amounts between 2 and 3 cm possible.

    T-storms

    Low: 22 °C

  • Labor
    Day

    Labor Day: A 30 percent chance of showers and thunderstorms.  Partly sunny, with a high near 28. New rainfall amounts between 2.5 and 5 mm possible.

    Chance
    T-storms

    High: 28 °C

  • Monday
    Night

    Monday Night: Showers and thunderstorms likely.  Mostly cloudy, with a low around 20. Chance of precipitation is 70%.

    T-storms
    Likely

    Low: 20 °C

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 27.

    Chance
    T-storms

    High: 27 °C

  • Tuesday
    Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 16.

    Chance
    T-storms

    Low: 16 °C

Detailed Forecast

Overnight
Partly cloudy, with a low around 22. South wind around 10 km/h.
Saturday
Mostly sunny, with a high near 32. South wind 10 to 15 km/h increasing to 16 to 21 km/h in the afternoon.
Saturday Night
Partly cloudy, with a low around 23. South wind 10 to 13 km/h.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 32. South wind 13 to 18 km/h increasing to 19 to 24 km/h in the afternoon. Winds could gust as high as 34 km/h.
Sunday Night
Showers and thunderstorms. Low around 22. South wind 10 to 16 km/h. Chance of precipitation is 80%. New rainfall amounts between 2 and 3 cm possible.
Labor Day
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 28. New rainfall amounts between 2.5 and 5 mm possible.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 20. Chance of precipitation is 70%.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 27.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 16.
Wednesday
Mostly sunny, with a high near 24.
Wednesday Night
Mostly clear, with a low around 13.
Thursday
Sunny, with a high near 24.
Thursday Night
Mostly clear, with a low around 12.
Friday
Sunny, with a high near 22.
  Click Map For Forecast
Point Forecast:
Knoxville IA
 41.32°N 93.11°W
10:26 pm CDT Sep 4, 2015
12am CDT Sep 5, 2015-6pm CDT Sep 10, 2015
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database