Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Harlan, Harlan Municipal Airport (KHNR)

Lat: 41.58°NLon: 95.34°WElev: 1230ft.

Mostly Cloudy

16°F

-9°C

Humidity	67%
Wind Speed	NE 10 mph
Barometer	30.32 in
Dewpoint	7°F (-14°C)
Visibility	10.00 mi
Wind Chill	4°F (-16°C)
Last update	7 Dec 12:35 pm CST

More Information:

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

Extended Forecast for

Portsmouth IA

This Afternoon
High: 18 °F
Chance
Flurries
Tonight
Low: 13 °F
Slight Chance
Snow then
Mostly Cloudy
Monday
High: 31 °F
Partly Sunny
Monday Night
Low: 24 °F
Partly Cloudy
Tuesday
High: 42 °F
Mostly Cloudy
Tuesday Night
Low: 21 °F
Mostly Cloudy
then Mostly
Cloudy and
Blustery
Wednesday
High: 29 °F
Mostly Cloudy
and Blustery
then Mostly
Cloudy
Wednesday Night
Low: 16 °F
Chance Snow
Thursday
High: 24 °F
Chance Snow

Detailed Forecast

This Afternoon

A chance of flurries after 5pm. Mostly sunny, with a high near 18. Northeast wind 5 to 8 mph.

Tonight

A chance of flurries before 9pm, then a slight chance of snow between 9pm and midnight. Increasing clouds, with a steady temperature around 13. Calm wind becoming south 5 to 7 mph after midnight. Chance of precipitation is 20%.

Monday

Partly sunny, with a high near 31. South wind 7 to 13 mph, with gusts as high as 20 mph.

Monday Night

Partly cloudy, with a low around 24. West southwest wind 5 to 10 mph, with gusts as high as 17 mph.

Tuesday

Mostly cloudy, with a high near 42. Southwest wind 5 to 11 mph, with gusts as high as 20 mph.

Tuesday Night

Mostly cloudy, with a low around 21. Blustery, with a southwest wind 11 to 18 mph becoming northwest after midnight. Winds could gust as high as 30 mph.

Wednesday

Mostly cloudy, with a high near 29. Blustery, with a northwest wind 13 to 18 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 29 mph.

Wednesday Night

A chance of snow. Mostly cloudy, with a low around 16. North wind 6 to 8 mph becoming east southeast after midnight.

Thursday

A chance of snow, mainly before noon. Mostly cloudy, with a high near 24. East southeast wind 8 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 17 mph.

Thursday Night

Mostly cloudy, with a low around 1. North northwest wind 9 to 11 mph, with gusts as high as 18 mph.

Friday

Partly sunny and cold, with a high near 10. Northwest wind 11 to 14 mph, with gusts as high as 21 mph.

Friday Night

Mostly cloudy, with a low around -7. Northwest wind 7 to 10 mph, with gusts as high as 16 mph.

Saturday

Partly sunny and cold, with a high near 10. Northwest wind 7 to 10 mph, with gusts as high as 16 mph.