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Johnston, IA
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7-Day Forecast
This Afternoon
Mostly Sunny
High: 58°
Mostly sunny with a high near 58.
North northwest wind 7 to 10 mph.
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Tonight
Increasing Clouds
Low: 41°
Increasing clouds with a low around 41.
North wind 5 to 7 mph becoming
east after midnight.
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Sunday
Showers Likely then Showers
High: 53°
Showers with thunderstorms also possible after 1pm.
High near 53.
East wind 9 to 15 mph
with gusts as high as 25 mph.
Chance of precipitation is 100%.
New rainfall amounts
between a half and three quarters of an inch possible.
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Sunday Night
Showers
Low: 43°
Showers and possibly a thunderstorm before 1am,
then a chance of showers.
Low around 43.
East northeast wind 13 to 15 mph becoming
west northwest after midnight.
Winds could gust as high as 24 mph.
Chance of precipitation is 90%.
New rainfall amounts
between a quarter and half of an inch possible.
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Monday
Mostly Sunny
High: 65°
Mostly sunny with a high near 65.
West northwest wind 10 to 14 mph
with gusts as high as 22 mph.
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Monday Night
Mostly Clear then Chance Showers
Low: 47°
A 30% chance of showers after 1am.
Mostly clear with a low around 47.
New precipitation amounts of less than a tenth of an inch possible.
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Tuesday
Chance Showers
High: 74°
A chance of showers with thunderstorms also possible after 1pm.
Mostly sunny with a high near 74.
Chance of precipitation is 50%.
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Tuesday Night
Chance Showers
Low: 48°
A chance of showers and thunderstorms.
Mostly clear with a low around 48.
Chance of precipitation is 30%.
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Wednesday
Mostly Sunny then Chance Showers
High: 73°
A 40% chance of showers after 1pm.
Mostly sunny with a high near 73.
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Wednesday Night
Chance Showers
Low: 53°
A 50% chance of showers.
Mostly cloudy with a low around 53.
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Thursday
Chance Showers then Chance T-storms
High: 71°
A 50% chance of showers and thunderstorms.
Mostly cloudy with a high near 71.
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Thursday Night
Chance Showers
Low: 52°
A 50% chance of showers.
Mostly cloudy with a low around 52.
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Friday
Chance Showers
High: 70°
A 50% chance of showers.
Mostly cloudy with a high near 70.
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Source: National Weather Service
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