Weather in Johnston, Iowa, United States

7-Day Detailed Weather Forecast for Johnston

Overnight

Temperature: 50°F

Wind Speed: 6 mph

Wind Direction: W

Forecast: Mostly clear. Low around 50, with temperatures rising to around 52 overnight. West wind around 6 mph.

Thursday

Temperature: 79°F

Wind Speed: 3 to 10 mph

Wind Direction: SSW

Forecast: Sunny, with a high near 79. South southwest wind 3 to 10 mph.

Thursday Night

Temperature: 60°F

Wind Speed: 7 to 12 mph

Wind Direction: S

Forecast: Mostly clear, with a low around 60. South wind 7 to 12 mph, with gusts as high as 20 mph.

Friday

Temperature: 81°F

Wind Speed: 13 to 20 mph

Wind Direction: SSW

Forecast: A slight chance of showers and thunderstorms between 7am and 1pm, then showers and thunderstorms. Partly sunny. High near 81, with temperatures falling to around 70 in the afternoon. South southwest wind 13 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.

Friday Night

Temperature: 36°F

Wind Speed: 16 mph

Wind Direction: NW

Forecast: Showers and thunderstorms. Mostly cloudy, with a low around 36. Northwest wind around 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Saturday

Temperature: 52°F

Wind Speed: 14 to 18 mph

Wind Direction: NW

Forecast: A chance of rain showers before 7am. Sunny, with a high near 52. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

Saturday Night

Temperature: 33°F

Wind Speed: 5 to 15 mph

Wind Direction: WNW

Forecast: Mostly clear, with a low around 33.

Sunday

Temperature: 61°F

Wind Speed: 5 to 10 mph

Wind Direction: WNW

Forecast: Sunny, with a high near 61.

Sunday Night

Temperature: 38°F

Wind Speed: 7 mph

Wind Direction: ENE

Forecast: Mostly clear, with a low around 38.

Monday

Temperature: 70°F

Wind Speed: 7 to 16 mph

Wind Direction: SSE

Forecast: Sunny, with a high near 70.

Monday Night

Temperature: 51°F

Wind Speed: 10 to 15 mph

Wind Direction: SSW

Forecast: Mostly clear, with a low around 51.

Tuesday

Temperature: 75°F

Wind Speed: 9 to 14 mph

Wind Direction: SW

Forecast: Sunny, with a high near 75.

Tuesday Night

Temperature: 51°F

Wind Speed: 8 to 12 mph

Wind Direction: SSW

Forecast: Mostly clear, with a low around 51.

Wednesday

Temperature: 73°F

Wind Speed: 7 to 14 mph

Wind Direction: S

Forecast: A slight chance of rain showers after 1pm. Sunny, with a high near 73.