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Johnston, IA

7-Day Forecast

Today
Slight Chance Rain then Slight Chance T-storms
High: 70°
A slight chance of rain before noon,
then a slight chance of showers
between noon and 4pm,
then a slight chance of showers and thunderstorms after 4pm.
Mostly cloudy with a high near 70.
Southeast wind 7 to 10 mph
with gusts as high as 20 mph.
Chance of precipitation is 20%.


Tonight
Showers
Low: 42°
Showers and thunderstorms before 4am,
then showers likely.
Low around 42.
Southeast wind 9 to 11 mph becoming
west after midnight.
Winds could gust as high as 20 mph.
Chance of precipitation is 80%.
New rainfall amounts
between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.


Sunday
Chance T-storms then Chance Showers and Breezy
High: 48°
A chance of showers before 7am,
then a chance of showers and thunderstorms
between 7am and 1pm,
then a slight chance of showers after 1pm.
Cloudy with a temperature falling to around 43 by 9am.
Breezy with a northwest wind 11 to 18 mph
with gusts as high as 29 mph.
Chance of precipitation is 50%.
New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.


Sunday Night
Slight Chance Rain/Snow and Blustery then Slight Chance Snow
Low: 31°
A slight chance of rain and snow before 10pm,
then a slight chance of snow
between 10pm and 1am.
Mostly cloudy with a low around 31.
Blustery with a north northwest wind 14 to 18 mph
with gusts as high as 28 mph.
Chance of precipitation is 20%.


Monday
Mostly Sunny
High: 49°
Mostly sunny with a high near 49.
North wind 10 to 13 mph
with gusts as high as 20 mph.


Monday Night
Partly Cloudy
Low: 32°
Partly cloudy with a low around 32.


Tuesday
Chance Rain/Snow and Windy
High: 53°
A slight chance of rain and snow before 1pm,
then a chance of rain.
Mostly cloudy with a high near 53.
Windy.
Chance of precipitation is 40%.


Tuesday Night
Rain and Breezy
Low: 45°
Rain.
Low around 45.
Breezy.
Chance of precipitation is 100%.


Wednesday
Chance Rain and Windy
High: 67°
A 50% chance of rain before 1pm.
Partly sunny with a high near 67.
Windy.


Wednesday Night
Partly Cloudy
Low: 38°
Partly cloudy with a low around 38.


Thursday
Mostly Sunny
High: 60°
Mostly sunny with a high near 60.


Thursday Night
Partly Cloudy
Low: 39°
Partly cloudy with a low around 39.


Friday
Mostly Sunny
High: 63°
Mostly sunny with a high near 63.


Source: National Weather Service








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