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Johnston, IA
 19° 
Last Updated on Feb 16 2019, 3:55 pm CST
Current ConditionsFair
Relative Humidity68%
WindEast at 11.5 MPH
(10 KT)
Pressure29.97 mb
Dewpoint10.4 F (-12.0 C)
Wind Chill7 F (-14 C)
Visibility10.00 miles

7-Day Forecast

This Afternoon
Partly Sunny
High: 21°
Partly sunny with a high near 21.
East wind around 8 mph.


Tonight
Heavy Snow
Low: 20°
Snow, mainly after 9pm.
The snow could be heavy at times.
Temperature rising to around 24 by 3am.
Wind chill values as low as 10.
East wind around 9 mph.
Chance of precipitation is 100%.
New snow accumulation of 3 to 7 inches possible.


Sunday
Snow
High: 27°
Snow, mainly before 5pm.
High near 27.
East northeast wind around 8 mph becoming
north in the afternoon.
Chance of precipitation is 90%.
New snow accumulation of 1 to 3 inches possible.


Sunday Night
Chance Snow then Slight Chance Snow
Low: 14°
A 50% chance of snow, mainly before midnight.
Cloudy with a low around 14.
Wind chill values as low as 5.
North wind around 8 mph.
Little or no snow accumulation expected.


Washington's Birthday
Mostly Cloudy
High: 22°
Mostly cloudy with a high near 22.
North northwest wind around 7 mph.


Monday Night
Mostly Cloudy
Low:
Mostly cloudy with a low around 2.


Tuesday
Partly Sunny then Slight Chance Snow
High: 18°
A 20% chance of snow after noon.
Mostly cloudy with a high near 18.


Tuesday Night
Snow
Low: 15°
Snow.
Low around 15.
Chance of precipitation is 90%.


Wednesday
Snow Likely then Mostly Cloudy
High: 27°
Snow likely before noon.
Cloudy with a high near 27.
Chance of precipitation is 60%.


Wednesday Night
Mostly Cloudy
Low:
Mostly cloudy with a low around 8.


Thursday
Mostly Sunny
High: 25°
Mostly sunny with a high near 25.


Thursday Night
Mostly Cloudy
Low: 10°
Mostly cloudy with a low around 10.


Friday
Partly Sunny
High: 30°
Partly sunny with a high near 30.


Source: National Weather Service








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