Current Conditions

Johnston, Iowa

64°F18°C
Drizzle

Wind

NNW 7 mph11 km/h

Humidity

73%

Cloud Cover

83%

As of Tuesday, October 13, 2026 at 7:06 PM CDT

Today's Outlook

Night

Mostly cloudy, with a low around 60°F16°C. Breezy from the NNW at 8 mph12 km/h. 16% chance of drizzle overnight.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
DrizzleHigh 65°F18°CLow 60°F16°CPrecip 0.02 in0.4 mm16%Cloud 56%Wind NNW 7 mph11 km/hTuesday: Partly cloudy and mild, with a high of 65°F18°C. Breezy from the NNW at 6 to 7 mph9 to 11 km/h. 11% chance of drizzle in the afternoon. Tuesday Night: Mostly cloudy, with a low around 60°F16°C. Breezy from the NNW at 8 mph12 km/h. 16% chance of drizzle overnight.
DrizzleHigh 58°F15°CLow 50°F10°CPrecip 0.02 in0.4 mm14%Cloud 94%Wind NNE 9 mph14 km/hWednesday: Overcast and mild, with a high of 57°F14°C and morning low of 50°F10°C. Breezy from the NNE at 9 to 10 mph15 to 17 km/h. Dry air. Wednesday Night: Overcast, with a low around 51°F11°C. Breezy from the NNE at 8 to 10 mph13 to 16 km/h. 14% chance of drizzle overnight.
Light RainHigh 57°F14°CLow 49°F9°CFeels 43°F6°CPrecip 0.37 in9.4 mm95%Cloud 98%Wind NNW 9 mph15 km/hThursday: Overcast and mild, with a high of 57°F14°C and morning low of 52°F11°C. Breezy from the NNW at 8 to 12 mph13 to 20 km/h. 95% chance of light rain in the morning. Thursday Night: Overcast, with a low around 49°F9°C. Windy from the NNW at 11 to 16 mph18 to 26 km/h. 72% chance of light rain overnight.
DrizzleHigh 50°F10°CFeels 44°F7°CLow 40°F4°CFeels 34°F1°CPrecip 0.02 in0.4 mm17%Cloud 56%Wind NW 16 mph26 km/hFriday: Mostly cloudy and cool, with a high of 50°F10°C. Windy from the NNW at 19 to 22 mph31 to 36 km/h. 17% chance of drizzle around midday. Dry air. Friday Night: Partly cloudy, with a low around 40°F4°C. Windy from the NW at 14 to 18 mph22 to 28 km/h. 14% chance of drizzle.
ClearHigh 55°F13°CLow 30°F-1°CFeels 25°F-4°CPrecip 0 in0 mm—Cloud 0%Wind SSW 9 mph14 km/hSaturday: Mostly clear and mild, with a high of 55°F13°C and morning low of 30°F-1°C. Breezy from the SSW at 9 to 12 mph15 to 19 km/h. Very dry. Saturday Night: Mostly clear, with a low around 31°F-1°C. Frost likely. Breezy from the SW at 8 to 12 mph14 to 19 km/h.
ClearHigh 62°F17°CLow 41°F5°CFeels 34°F1°CPrecip 0 in0 mm—Cloud 17%Wind SSW 13 mph21 km/hSunday: Mostly clear and mild, with a high of 62°F17°C and morning low of 41°F5°C. Windy from the SSW at 14 to 16 mph23 to 26 km/h. Dry air. Sunday Night: Mostly clear, with a low around 41°F5°C. Breezy from the S at 12 to 13 mph19 to 21 km/h.
DrizzleHigh 62°F17°CLow 47°F8°CFeels 42°F6°CPrecip 0.02 in0.5 mm10%Cloud 56%Wind S 9 mph14 km/hMonday: Mostly cloudy and mild, with a high of 62°F17°C and morning low of 47°F8°C. Breezy from the S at 9 to 10 mph15 to 16 km/h. 10% chance of drizzle in the afternoon. Dry air. Monday Night: Mostly cloudy, with a low around 47°F8°C. Breezy from the S at 9 to 10 mph14 to 17 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
TuesdayOct 1365°F18°C60°F16°C0.02 in0.4 mm· 16%56%DrizzleNNW 7 mph11 km/h
WednesdayOct 1458°F15°C50°F10°C0.02 in0.4 mm· 14%94%DrizzleNNE 9 mph14 km/h
ThursdayOct 1557°F14°C49°F9°C
Feels 43°F6°C
0.37 in9.4 mm· 95%98%Light RainNNW 9 mph15 km/h
FridayOct 1650°F10°C
Feels 44°F7°C
40°F4°C
Feels 34°F1°C
0.02 in0.4 mm· 17%56%DrizzleNW 16 mph26 km/h
SaturdayOct 1755°F13°C30°F-1°C
Feels 25°F-4°C
0 in0 mm· —0%ClearSSW 9 mph14 km/h
SundayOct 1862°F17°C41°F5°C
Feels 34°F1°C
0 in0 mm· —17%ClearSSW 13 mph21 km/h
MondayOct 1962°F17°C47°F8°C
Feels 42°F6°C
0.02 in0.5 mm· 10%56%DrizzleS 9 mph14 km/h
TuesdayOct 2066°F19°C47°F9°C
Feels 44°F7°C
0 in0.1 mm· 4%26%ClearSSE 9 mph14 km/h
WednesdayOct 2168°F20°C55°F13°C0.09 in2.2 mm· 19%46%DrizzleS 9 mph15 km/h
ThursdayOct 2265°F18°C57°F14°C0.17 in4.4 mm· 26%62%ShowersSSW 9 mph14 km/h
FridayOct 2366°F19°C56°F14°C0.23 in5.8 mm· 32%68%ShowersS 10 mph17 km/h
SaturdayOct 2463°F17°C56°F14°C0.19 in4.8 mm· 34%67%ShowersSW 11 mph18 km/h
SundayOct 2558°F14°C49°F10°C
Feels 46°F8°C
0.09 in2.2 mm· 17%63%ShowersW 9 mph15 km/h
MondayOct 2656°F13°C46°F8°C
Feels 41°F5°C
0.1 in2.6 mm· 12%57%DrizzleW 8 mph13 km/h
TuesdayOct 2755°F13°C44°F7°C
Feels 40°F4°C
0.12 in3 mm· 18%58%Light Freezing RainWSW 9 mph14 km/h

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About This Forecast

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Coordinates: 41.6730°N, 93.6977°W·Elevation: 253m·Timezone: America/Chicago·Population: 20,871