Weather Alert
Jefferson Weather Warning NWS WEATHER ALERT FOR THE JEFFERSON, IA AREA - Issued: 502 AM CDT Sat Sep 26 2026 Jefferson Weather Warning

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Jefferson, IA Weather - Hour by Hour Forecast

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Jefferson, IA Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Overcast. Temperature is 65°F18°C, dew point 65°F18°C, humidity 100%. Wind direction is SE at 17 mph27 km/h with visibility of 10.00 mi16 km. Barometric pressure is 30.03 in1017 mb.
Today - Cloudy with a chance of showers with a slight chance of thunderstorms. Near steady temperature in the mid 60s. Southeast winds 10 .. Full Forecast
Tonight - Cloudy with a chance of showers and thunderstorms. Lows in the upper 50s. Southeast winds 5 to 10 mph. Chance of rain 50%... Full Forecast

Jefferson Hourly Weather

24 Hour Forecast Scroll
Sat, Sep 26
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Noon
Jefferson, IA Hourly Weather - Cloudy - 1:00 PM Jefferson, IA Hourly Weather - Cloudy - 2:00 PM Jefferson, IA Hourly Weather - Cloudy - 3:00 PM Jefferson, IA Hourly Weather - Cloudy - 4:00 PM Jefferson, IA Hourly Weather - Cloudy - 5:00 PM Jefferson, IA Hourly Weather - Cloudy - 6:00 PM Jefferson, IA Hourly Weather - Cloudy - 7:00 PM Jefferson, IA Hourly Weather - Cloudy - 8:00 PM Jefferson, IA Hourly Weather - Cloudy - 9:00 PM Jefferson, IA Hourly Weather - Cloudy - 10:00 PM Jefferson, IA Hourly Weather - Cloudy - 11:00 PM Jefferson, IA Hourly Weather - Cloudy - 12:00 AM Jefferson, IA Hourly Weather - Cloudy - 1:00 AM Jefferson, IA Hourly Weather - Cloudy - 2:00 AM Jefferson, IA Hourly Weather - Cloudy - 3:00 AM Jefferson, IA Hourly Weather - Cloudy - 4:00 AM Jefferson, IA Hourly Weather - Cloudy - 5:00 AM Jefferson, IA Hourly Weather - Cloudy - 6:00 AM Jefferson, IA Hourly Weather - Cloudy - 7:00 AM Jefferson, IA Hourly Weather - Cloudy - 8:00 AM Jefferson, IA Hourly Weather - Cloudy - 9:00 AM Jefferson, IA Hourly Weather - Cloudy - 10:00 AM Jefferson, IA Hourly Weather - Cloudy - 11:00 AM Jefferson, IA Hourly Weather - Cloudy - 12:00 PM
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 64°F18°C 64°F18°C 65°F18°C 64°F18°C 62°F17°C 61°F16°C 61°F16°C 60°F16°C 60°F16°C 60°F16°C 59°F15°C 59°F15°C 59°F15°C 59°F15°C 59°F15°C 59°F15°C 58°F14°C 58°F14°C 59°F15°C 60°F16°C 61°F16°C 63°F17°C 64°F18°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
35% 35% 35% 35% 35% 35% 35% 39% 39% 39% 39% 39% 39% 56% 56% 56% 56% 56% 56% 30% 30% 30% 30% 30%
61°F16°C 61°F16°C 62°F17°C 62°F17°C 62°F17°C 61°F16°C 61°F16°C 60°F16°C 60°F16°C 59°F15°C 59°F15°C 59°F15°C 59°F15°C 59°F15°C 59°F15°C 59°F15°C 59°F15°C 58°F14°C 58°F14°C 59°F15°C 60°F16°C 61°F16°C 62°F17°C 62°F17°C
93% 90% 93% 90% 93% 97% 100% 97% 100% 96% 96% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 97% 93%
SE SE SE SE SE SE SE SE ESE ESE ESE ESE ESE ESE ESE ESE ESE ESE ESE SE SE SE SE SE
13 mph 13 mph 12 mph 12 mph 12 mph 7 mph 7 mph 7 mph 6 mph 6 mph 6 mph 6 mph 6 mph 6 mph 4 mph 4 mph 4 mph 4 mph 4 mph 4 mph 6 mph 6 mph 6 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 KPRO model statistics.

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Prob Precip % = Probability of Precipitation.

Jefferson 36 Hour Forecast

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

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