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Decorah, IA

35.7°F / 2.1°C
Scattered Clouds
Windchill: 36°F / 2°C
Humidity: 94%
Dew Point: 34°F / 1°C
Wind: SSW at 2.0 mph / 3.2 km/h
Pressure: 30.12 in / 1019.9 hPa (Steady)
Visibility: 2.5 miles / 4.0 kilometers
Clouds: Scattered Clouds (SCT) : 2400 ft / 731 m
Yesterday's Maximum: 53°F / 11°C
Yesterday's Minimum: 34°F / 1°C
UV: 0 out of 16
Sunrise:7:08 AM CST
Sunset:4:37 PM CST
Moon Rise:11:17 AM CST
Moon Set:8:51 PM CST
Moon Phase Waxing Crescent
NOAA Weather Radio
METAR KDEH 210715Z AUTO 00000KT 2 1/2SM SCT024 04/03 A3011 RMK AO2
As of: 1:31 AM CST on November 21, 2009
Observed at: North Winneshiek School, Burr Oak, IA

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Forecast

Today is forecast to be nearly the same temperature as yesterday.
Now
Widespread fog is expected during the overnight hours...with visibility in many locations 1/2 mile or less. In addition...the fog could cause icy spots on bridges. Travelers are advised to use caution and allow extra time to reach your destination.
As of: 12:36 am CST on November 21, 2009
Dense fog advisory in effect until 10 am CST Saturday...
Rest of Tonight
Mostly clear. Areas of dense fog after midnight. Lows around 30. Light winds.
Saturday
Mostly sunny. Areas of dense fog in the morning. Highs in the lower 50s. South winds 10 to 15 mph.
Saturday Night
Mostly cloudy. Lows in the lower 40s. Southeast winds 10 to 15 mph.
Sunday
Mostly cloudy with a chance of light rain. Highs in the mid 50s. Southeast winds 10 to 15 mph. Chance of rain 30 percent.
Sunday Night
Mostly cloudy with a chance of light rain. Lows in the upper 30s. Southeast winds 10 to 15 mph. Chance of rain 30 percent.
Monday
Mostly cloudy with a chance of light rain. Highs in the upper 40s. Chance of rain 30 percent.
Monday Night
Mostly cloudy. Chance of light rain in the evening...then chance of light rain or light snow after midnight. Lows in the mid 30s. Chance of precipitation 40 percent.
Tuesday
Cloudy with a chance of rain. Highs in the lower 40s. Chance of rain 50 percent.
Tuesday Night
Mostly cloudy with a chance of light rain and light snow. Lows in the lower 30s. Chance of precipitation 30 percent.
Wednesday
Mostly cloudy with a slight chance of light rain and light snow. Highs in the lower 40s. Chance of precipitation 20 percent.
Wednesday Night
Mostly cloudy in the evening then becoming partly cloudy. Slight chance of light snow. Lows in the mid 20s. Chance of snow 20 percent.
Thanksgiving Day
Partly sunny. Highs around 40.
Thursday Night
Mostly clear. Lows in the mid 20s.
Friday
Mostly sunny. Highs in the lower 40s.
As of: 10:00 PM CST on November 20, 2009

Scientific Forecaster Discussion

Warnings & Notices

Dense Fog Advisory

Expires 10:00 AM CST on November 21, 2009
Statement as of 1:06 am CST on November 21, 2009

... Dense fog advisory remains in effect until 10 am CST this
morning...

A dense fog advisory remains in effect until 10 am CST this
morning.

Widespread fog is expected during the overnight hours... reducing
visibilities to one quarter of a mile or less. Be alert for icy
spots on bridges caused by the fog. The fog should dissipate
around 10 am this morning.

Precautionary/preparedness actions...

A dense fog advisory means visibilities will frequently be
reduced to less than one quarter mile. If driving... slow down...
use your headlights... and leave plenty of distance ahead of you.



Thompson

Weather.Gov/LaCrosse





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