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Johnston, IA
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7-Day Forecast
This Afternoon
Sunny
High: 74°
Sunny with a high near 74.
South southeast wind around 11 mph.
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Tonight
Increasing Clouds
Low: 54°
Increasing clouds with a low around 54.
Southeast wind around 10 mph
with gusts as high as 21 mph.
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Friday
Windy. Mostly Sunny then T-storms Likely
High: 78°
Showers and thunderstorms likely, mainly after 5pm.
Mostly sunny with a high near 78.
Windy with a south southeast wind 15 to 23 mph
with gusts as high as 43 mph.
Chance of precipitation is 60%.
New rainfall amounts
between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
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Friday Night
T-storms and Breezy then Chance Showers
Low: 43°
Showers and thunderstorms before 1am,
then a chance of showers.
Low around 43.
Breezy with a south southeast wind 13 to 18 mph
with gusts as high as 38 mph.
Chance of precipitation is 80%.
New precipitation amounts
between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
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Saturday
Slight Chance Rain and Windy
High: 48°
A 20% chance of rain before 1pm.
Mostly cloudy with a high near 48.
Windy with a west northwest wind 16 to 21 mph
with gusts as high as 34 mph.
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Saturday Night
Mostly Cloudy and Blustery then Mostly Cloudy
Low: 27°
Mostly cloudy with a low around 27.
Blustery.
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Sunday
Sunny
High: 50°
Sunny with a high near 50.
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Sunday Night
Partly Cloudy
Low: 33°
Partly cloudy with a low around 33.
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Monday
Sunny
High: 67°
Sunny with a high near 67.
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Monday Night
Partly Cloudy
Low: 48°
Partly cloudy with a low around 48.
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Tuesday
Mostly Sunny then Mostly Sunny and Breezy
High: 77°
Mostly sunny with a high near 77.
Breezy.
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Tuesday Night
Partly Cloudy then Chance Rain
Low: 35°
A 30% chance of rain.
Mostly cloudy with a low around 35.
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Wednesday
Rain/Snow Likely and Windy
High: 48°
Rain and snow likely.
Partly sunny with a high near 48.
Windy.
Chance of precipitation is 60%.
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Source: National Weather Service
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