Weather Alert
Jefferson County Weather Warning NWS WEATHER ALERT FOR THE JEFFERSON COUNTY, IA AREA - Issued: 334 AM CDT Sat Sep 26 2026 Jefferson County Weather Warning

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Jefferson County, IA Weather - Hour by Hour Forecast

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Jefferson County, IA Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Overcast. Temperature is 60°F16°C, dew point 60°F16°C, humidity 100%. Wind direction is SE at 5 mph8 km/h with visibility of 10 mi16 km. Barometric pressure is 30.15 in1021 mb.
Rest of Tonight - Mostly cloudy. Lows in the upper 50s. East winds around 5 mph... Full Forecast
Saturday - Showers. Highs in the mid 60s. Southeast winds 5 to 10 mph. Chance of rain 90%... Full Forecast

Jefferson County Hourly Weather

24 Hour Forecast Scroll
Sat, Sep 26
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Jefferson County, IA Hourly Weather - Cloudy - 5:00 AM Jefferson County, IA Hourly Weather - Cloudy - 6:00 AM Jefferson County, IA Hourly Weather - Cloudy - 7:00 AM Jefferson County, IA Hourly Weather - Cloudy - 8:00 AM Jefferson County, IA Hourly Weather - Cloudy - 9:00 AM Jefferson County, IA Hourly Weather - Cloudy - 10:00 AM Jefferson County, IA Hourly Weather - Cloudy - 11:00 AM Jefferson County, IA Hourly Weather - Cloudy - 12:00 PM Jefferson County, IA Hourly Weather - Cloudy - 1:00 PM Jefferson County, IA Hourly Weather - Cloudy - 2:00 PM Jefferson County, IA Hourly Weather - Cloudy - 3:00 PM Jefferson County, IA Hourly Weather - Cloudy - 4:00 PM Jefferson County, IA Hourly Weather - Cloudy - 5:00 PM Jefferson County, IA Hourly Weather - Mostly Cloudy - 6:00 PM Jefferson County, IA Hourly Weather - Mostly Cloudy - 7:00 PM Jefferson County, IA Hourly Weather - Mostly Cloudy - 8:00 PM Jefferson County, IA Hourly Weather - Cloudy - 9:00 PM Jefferson County, IA Hourly Weather - Cloudy - 10:00 PM Jefferson County, IA Hourly Weather - Cloudy - 11:00 PM Jefferson County, IA Hourly Weather - Cloudy - 12:00 AM Jefferson County, IA Hourly Weather - Cloudy - 1:00 AM Jefferson County, IA Hourly Weather - Cloudy - 2:00 AM Jefferson County, IA Hourly Weather - Cloudy - 3:00 AM Jefferson County, IA Hourly Weather - Cloudy - 4:00 AM
Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
58°F14°C 57°F14°C 56°F13°C 56°F13°C 57°F14°C 57°F14°C 59°F15°C 60°F16°C 62°F17°C 63°F17°C 64°F18°C 65°F18°C 64°F18°C 63°F17°C 62°F17°C 61°F16°C 59°F15°C 58°F14°C 58°F14°C 57°F14°C 57°F14°C 57°F14°C 57°F14°C 57°F14°C
Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain
40% 40% 40% 55% 55% 55% 55% 55% 55% 25% 25% 25% 25% 25% 25% 21% 21% 21% 21% 21% 21% 31% 31% 31%
57°F14°C 57°F14°C 56°F13°C 56°F13°C 56°F13°C 56°F13°C 56°F13°C 56°F13°C 56°F13°C 56°F13°C 56°F13°C 56°F13°C 56°F13°C 56°F13°C 56°F13°C 56°F13°C 56°F13°C 56°F13°C 56°F13°C 55°F13°C 55°F13°C 55°F13°C 55°F13°C 55°F13°C
96% 100% 100% 100% 96% 96% 90% 87% 81% 78% 75% 73% 75% 78% 81% 84% 90% 93% 93% 93% 93% 93% 93% 93%
E ESE ESE SE SE SE SE SE SE SE SE SE SE ESE ESE ESE ESE ESE ESE ESE ESE ESE SE SE
6 mph 7 mph 7 mph 7 mph 7 mph 7 mph 7 mph 8 mph 8 mph 8 mph 10 mph 10 mph 10 mph 6 mph 6 mph 6 mph 6 mph 6 mph 6 mph 5 mph 5 mph 5 mph 5 mph 5 mph
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 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 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 KFFL model statistics.

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Prob Precip % = Probability of Precipitation.

Jefferson County 36 Hour Forecast

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

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