Weather in Johnston, Iowa, United States

7-Day Detailed Weather Forecast for Johnston

Overnight

Temperature: 5°F

Wind Speed: 12 mph

Wind Direction: SSW

Forecast: Mostly clear. Low around 5, with temperatures rising to around 16 overnight. Wind chill values as low as 2. South southwest wind around 12 mph, with gusts as high as 22 mph.

Monday

Temperature: 34°F

Wind Speed: 5 to 12 mph

Wind Direction: SW

Forecast: Mostly sunny. High near 34, with temperatures falling to around 29 in the afternoon. Wind chill values as low as 4. Southwest wind 5 to 12 mph, with gusts as high as 21 mph.

Monday Night

Temperature: 19°F

Wind Speed: 3 mph

Wind Direction: SW

Forecast: Areas of fog after midnight. Mostly cloudy, with a low around 19. Southwest wind around 3 mph.

Tuesday

Temperature: 39°F

Wind Speed: 5 to 8 mph

Wind Direction: SSW

Forecast: Patchy fog before 10am. Partly sunny, with a high near 39. South southwest wind 5 to 8 mph.

Tuesday Night

Temperature: 24°F

Wind Speed: 2 to 6 mph

Wind Direction: W

Forecast: Partly cloudy, with a low around 24. West wind 2 to 6 mph.

Wednesday

Temperature: 41°F

Wind Speed: 2 to 12 mph

Wind Direction: SSW

Forecast: Mostly sunny, with a high near 41.

Wednesday Night

Temperature: 36°F

Wind Speed: 14 mph

Wind Direction: SW

Forecast: A chance of rain after midnight. Mostly cloudy, with a low around 36. Chance of precipitation is 40%.

Thursday

Temperature: 39°F

Wind Speed: 15 to 22 mph

Wind Direction: WNW

Forecast: Mostly sunny, with a high near 39.

Thursday Night

Temperature: 9°F

Wind Speed: 5 to 14 mph

Wind Direction: NNW

Forecast: Partly cloudy, with a low around 9.

Friday

Temperature: 37°F

Wind Speed: 6 to 15 mph

Wind Direction: SE

Forecast: Partly sunny, with a high near 37.

Friday Night

Temperature: 31°F

Wind Speed: 7 to 13 mph

Wind Direction: S

Forecast: Mostly cloudy, with a low around 31.

Saturday

Temperature: 41°F

Wind Speed: 7 to 10 mph

Wind Direction: W

Forecast: Partly sunny, with a high near 41.

Saturday Night

Temperature: 19°F

Wind Speed: 3 to 7 mph

Wind Direction: N

Forecast: Mostly cloudy, with a low around 19.

Sunday

Temperature: 35°F

Wind Speed: 3 to 7 mph

Wind Direction: ENE

Forecast: Mostly sunny, with a high near 35.