Weather Alert
Johnson County Weather Warning NWS WEATHER ALERT FOR THE JOHNSON COUNTY, IA AREA - Issued: 332 AM CDT Thu Sep 24 2026 Johnson County Weather Warning

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Johnson County, IA Weather - Hour by Hour Forecast

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Johnson County, IA Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Mostly Cloudy. Temperature is 63°F17°C, dew point 59°F15°C, humidity 86%. Wind direction is SSE at 3 mph5 km/h with visibility of 10 mi16 km. Barometric pressure is 30.25 in1024 mb.
Rest of Tonight - Cloudy with occasional sprinkles. Near steady temperature in the lower 60s. East winds around 5 mph... Full Forecast
Friday - Mostly cloudy with a 50% chance of showers. Highs in the mid 60s. East winds around 5 mph... Full Forecast

Johnson County Hourly Weather

24 Hour Forecast Scroll
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Midnight
Johnson County, IA Hourly Weather - Cloudy - 1:00 AM Johnson County, IA Hourly Weather - Cloudy - 2:00 AM Johnson County, IA Hourly Weather - Cloudy - 3:00 AM Johnson County, IA Hourly Weather - Cloudy - 4:00 AM Johnson County, IA Hourly Weather - Cloudy - 5:00 AM Johnson County, IA Hourly Weather - Cloudy - 6:00 AM Johnson County, IA Hourly Weather - Cloudy - 7:00 AM Johnson County, IA Hourly Weather - Cloudy - 8:00 AM Johnson County, IA Hourly Weather - Cloudy - 9:00 AM Johnson County, IA Hourly Weather - Cloudy - 10:00 AM Johnson County, IA Hourly Weather - Cloudy - 11:00 AM Johnson County, IA Hourly Weather - Cloudy - 12:00 PM Johnson County, IA Hourly Weather - Cloudy - 1:00 PM Johnson County, IA Hourly Weather - Cloudy - 2:00 PM Johnson County, IA Hourly Weather - Cloudy - 3:00 PM Johnson County, IA Hourly Weather - Cloudy - 4:00 PM Johnson County, IA Hourly Weather - Cloudy - 5:00 PM Johnson County, IA Hourly Weather - Cloudy - 6:00 PM Johnson County, IA Hourly Weather - Cloudy - 7:00 PM Johnson County, IA Hourly Weather - Cloudy - 8:00 PM Johnson County, IA Hourly Weather - Cloudy - 9:00 PM Johnson County, IA Hourly Weather - Cloudy - 10:00 PM Johnson County, IA Hourly Weather - Cloudy - 11:00 PM Johnson County, IA Hourly Weather - Cloudy - 12:00 AM
Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
63°F17°C 63°F17°C 62°F17°C 62°F17°C 61°F16°C 61°F16°C 60°F16°C 60°F16°C 61°F16°C 61°F16°C 63°F17°C 64°F18°C 66°F19°C 66°F19°C 66°F19°C 66°F19°C 65°F18°C 63°F17°C 62°F17°C 61°F16°C 61°F16°C 60°F16°C 60°F16°C 59°F15°C
Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain - - - - -
41% 41% 41% 41% 41% 41% 41% 62% 62% 62% 62% 62% 62% 41% 41% 41% 41% 41% 41% 14% 14% 14% 14% 14%
57°F14°C 57°F14°C 57°F14°C 57°F14°C 57°F14°C 56°F13°C 56°F13°C 57°F14°C 57°F14°C 58°F14°C 59°F15°C 60°F16°C 61°F16°C 61°F16°C 60°F16°C 60°F16°C 60°F16°C 59°F15°C 59°F15°C 58°F14°C 57°F14°C 56°F13°C 56°F13°C 55°F13°C
81% 81% 84% 84% 87% 84% 87% 90% 87% 90% 87% 87% 84% 84% 81% 81% 84% 87% 90% 90% 87% 87% 87% 87%
E E ENE NE NE NE NE ENE ENE E E E E E E ESE ESE E E E E E E E
2 mph 2 mph 2 mph 2 mph 2 mph 3 mph 3 mph 3 mph 4 mph 4 mph 4 mph 5 mph 5 mph 5 mph 5 mph 5 mph 5 mph 4 mph 4 mph 4 mph 4 mph 4 mph 4 mph 3 mph
10 mi16 km 6 mi10 km 6 mi10 km 5 mi8 km 5 mi8 km 3 mi5 km 3 mi5 km 3 mi5 km 5 mi8 km 5 mi8 km 5 mi8 km 5 mi8 km 5 mi8 km 6 mi10 km 6 mi10 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km
Hour (CDT)
Weather
Clouds
Temperature
Precip. Type
POP
Dewpoint
Humidity
Wind Direction
Wind Speed
Visibility
POP = Probability of Precipitation. ** Indicates missing data/values from KIOW model statistics.

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Prob Precip % = Probability of Precipitation.

Johnson County 36 Hour Forecast

POP = Probability of Precipitation. ** Indicates missing data/values from model statistics.

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