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Johnston, IA
 54° 
Last Updated on Feb 18 2018, 2:55 pm CST
Current ConditionsFair and Breezy
Relative Humidity35%
Windfrom the South at 21.9 gusting to 32.2 MPH
(19 gusting to 28 KT)
Pressure29.68 mb
Dewpoint26.6 F (-3.0 C)
Wind Chill49 F (9 C)
Visibility10.00 miles

7-Day Forecast

This Afternoon
Sunny
High: 49°
Sunny with a steady temperature around 49.
South wind 10 to 15 mph
with gusts as high as 21 mph.


Tonight
Mostly Cloudy then Rain Likely
Low: 37°
Rain likely, mainly after 4am.
Increasing clouds with a low around 37.
South wind 6 to 8 mph becoming
east northeast after midnight.
Chance of precipitation is 70%.
New precipitation amounts of less than a tenth of an inch possible.


Washington's Birthday
Rain then Drizzle Likely
High: 41°
Rain before noon,
then drizzle likely, mainly
between noon and 1pm.
Temperature rising to near 41 by 8am,
then falling to around 34 during the remainder of the day.
North wind 9 to 11 mph.
Chance of precipitation is 90%.
New precipitation amounts of less than a tenth of an inch possible.


Monday Night
Freezing Rain
Low: 28°
Freezing drizzle likely, mainly
between 10pm and midnight,
then freezing rain after midnight.
Low around 28.
North wind 7 to 9 mph.
Chance of precipitation is 80%.
New ice accumulation of 0.
1 to 0.
2 of an inch possible.


Tuesday
Freezing Rain Likely then Slight Chance Wintry Mix
High: 30°
Freezing rain likely before noon,
then a slight chance of freezing drizzle
between noon and 4pm,
then a slight chance of snow after 4pm.
Cloudy with a high near 30.
North northwest wind 10 to 14 mph
with gusts as high as 21 mph.
Chance of precipitation is 60%.
New ice accumulation of less than a 0.
1 of an inch possible.
Little or no snow accumulation expected.


Tuesday Night
Mostly Cloudy
Low: 11°
Mostly cloudy with a low around 11.


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


Wednesday Night
Partly Cloudy then Chance Snow
Low: 15°
A 30% chance of snow after midnight.
Partly cloudy with a low around 15.


Thursday
Mostly Sunny
High: 35°
Mostly sunny with a high near 35.


Thursday Night
Mostly Cloudy then Chance Snow
Low: 25°
A 50% chance of snow after midnight.
Mostly cloudy with a low around 25.


Friday
Rain/Snow Likely then Chance Rain
High: 41°
Rain and snow likely.
Mostly cloudy with a high near 41.
Chance of precipitation is 60%.


Friday Night
Chance Rain/Snow then Chance Snow
Low: 27°
A chance of rain and snow.
Mostly cloudy with a low around 27.
Chance of precipitation is 40%.


Saturday
Partly Sunny then Chance Rain
High: 41°
A 30% chance of rain.
Partly sunny with a high near 41.


Source: National Weather Service








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