Weather Alert
Big Sieber Lake Weather Warning NWS WEATHER ALERT FOR THE BIG SIEBER LAKE, IA AREA - Issued: 458 AM CDT Sun Aug 9 2026 Big Sieber Lake Weather Warning

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Big Sieber Lake, IA Weather - Hour by Hour Forecast

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Big Sieber Lake, IA Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Lightning Observed. Temperature is 72°F22°C, dew point 68°F20°C, humidity 85%. Wind direction is N at 0 mph0 km/h with visibility of 10 mi16 km. Barometric pressure is 29.88 in1011 mb.
Rest of Tonight - Mostly cloudy with a slight chance of showers and thunderstorms. Near steady temperature in the upper 60s. Northeast winds around .. Full Forecast
Monday - Partly sunny. A chance of showers and thunderstorms in the afternoon. Humid with highs in the mid 80s. East winds around 5 mph. Ch.. Full Forecast

Big Sieber Lake Hourly Weather

24 Hour Forecast Scroll
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Big Sieber Lake, IA Hourly Weather - Mostly Cloudy - 12:00 AM Big Sieber Lake, IA Hourly Weather - Mostly Cloudy - 1:00 AM Big Sieber Lake, IA Hourly Weather - Mostly Cloudy - 2:00 AM Big Sieber Lake, IA Hourly Weather - Cloudy - 3:00 AM Big Sieber Lake, IA Hourly Weather - Cloudy - 4:00 AM Big Sieber Lake, IA Hourly Weather - Cloudy - 5:00 AM Big Sieber Lake, IA Hourly Weather - Cloudy - 6:00 AM Big Sieber Lake, IA Hourly Weather - Cloudy - 7:00 AM Big Sieber Lake, IA Hourly Weather - Cloudy - 8:00 AM Big Sieber Lake, IA Hourly Weather - Cloudy - 9:00 AM Big Sieber Lake, IA Hourly Weather - Cloudy - 10:00 AM Big Sieber Lake, IA Hourly Weather - Cloudy - 11:00 AM Big Sieber Lake, IA Hourly Weather - Mostly Cloudy - 12:00 PM Big Sieber Lake, IA Hourly Weather - Mostly Cloudy - 1:00 PM Big Sieber Lake, IA Hourly Weather - Mostly Cloudy - 2:00 PM Big Sieber Lake, IA Hourly Weather - Mostly Cloudy - 3:00 PM Big Sieber Lake, IA Hourly Weather - Mostly Cloudy - 4:00 PM Big Sieber Lake, IA Hourly Weather - Mostly Cloudy - 5:00 PM Big Sieber Lake, IA Hourly Weather - Clear - 6:00 PM Big Sieber Lake, IA Hourly Weather - Clear - 7:00 PM Big Sieber Lake, IA Hourly Weather - Clear - 8:00 PM Big Sieber Lake, IA Hourly Weather - Clear - 9:00 PM Big Sieber Lake, IA Hourly Weather - Clear - 10:00 PM Big Sieber Lake, IA Hourly Weather - Clear - 11:00 PM
Mostly Cloudy Mostly Cloudy Mostly Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Clear Clear Clear Clear Clear Clear
72°F22°C 71°F22°C 71°F22°C 70°F21°C 70°F21°C 70°F21°C 70°F21°C 70°F21°C 72°F22°C 74°F23°C 76°F24°C 79°F26°C 82°F28°C 85°F29°C 86°F30°C 87°F31°C 88°F31°C 87°F31°C 86°F30°C 85°F29°C 81°F27°C 78°F26°C 74°F23°C 72°F22°C
- - Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain - - - - - - - - - -
16% 16% 39% 39% 39% 39% 39% 39% 22% 22% 22% 22% 22% 22% 0% 0% 0% 0% 0% 0% 6% 6% 6% 6%
69°F21°C 69°F21°C 69°F21°C 68°F20°C 68°F20°C 68°F20°C 69°F21°C 69°F21°C 69°F21°C 69°F21°C 69°F21°C 69°F21°C 68°F20°C 68°F20°C 68°F20°C 68°F20°C 68°F20°C 68°F20°C 69°F21°C 69°F21°C 69°F21°C 70°F21°C 70°F21°C 70°F21°C
90% 93% 93% 93% 93% 93% 97% 97% 90% 84% 79% 72% 63% 57% 55% 53% 52% 53% 57% 59% 67% 77% 87% 93%
E E E E E E E E ESE SE SE S SW SSW W NW NNW SW SE N NNE NE NE NE
3 mph 3 mph 3 mph 3 mph 3 mph 3 mph 3 mph 3 mph 3 mph 5 mph 5 mph 5 mph 2 mph 2 mph 2 mph 5 mph 5 mph 5 mph 4 mph 4 mph 4 mph 2 mph 2 mph 2 mph
6 mi10 km 6 mi10 km 6 mi10 km 10 mi16 km 10 mi16 km 6 mi10 km 6 mi10 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 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km
Hour (CDT)
Weather
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POP = Probability of Precipitation. ** Indicates missing data/values from KSFY model statistics.

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Prob Precip % = Probability of Precipitation.

Big Sieber Lake 36 Hour Forecast

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

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