Weather Alert
McCoy Lake Weather Warning NWS WEATHER ALERT FOR THE MCCOY LAKE, SD AREA - Issued: 352 AM CDT Wed Aug 12 2026 McCoy Lake Weather Warning

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McCoy Lake, SD Weather - Hour by Hour Forecast

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McCoy Lake, SD Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Clear. Temperature is 87°F31°C, dew point 69°F21°C, humidity 55%. Wind direction is E at 9 mph14 km/h with visibility of 10 mi16 km. Barometric pressure is 29.85 in1011 mb.
Rest of Today - Mostly sunny. Patchy smoke this afternoon. Highs in the upper 80s. East winds 5 to 10 mph... Full Forecast
Tonight - Cloudy with a chance of showers and thunderstorms. Patchy smoke. Humid with lows in the mid 60s. East winds 5 to 10 mph. Chance of.. Full Forecast

McCoy Lake Hourly Weather

24 Hour Forecast Scroll
Wed, Aug 12
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Noon
McCoy Lake, SD Hourly Weather - Clear - 1:00 PM McCoy Lake, SD Hourly Weather - Clear - 2:00 PM McCoy Lake, SD Hourly Weather - Partly Cloudy - 3:00 PM McCoy Lake, SD Hourly Weather - Partly Cloudy - 4:00 PM McCoy Lake, SD Hourly Weather - Partly Cloudy - 5:00 PM McCoy Lake, SD Hourly Weather - Mostly Cloudy - 6:00 PM McCoy Lake, SD Hourly Weather - Mostly Cloudy - 7:00 PM McCoy Lake, SD Hourly Weather - Mostly Cloudy - 8:00 PM McCoy Lake, SD Hourly Weather - Cloudy - 9:00 PM McCoy Lake, SD Hourly Weather - Cloudy - 10:00 PM McCoy Lake, SD Hourly Weather - Cloudy - 11:00 PM McCoy Lake, SD Hourly Weather - Cloudy - 12:00 AM McCoy Lake, SD Hourly Weather - Cloudy - 1:00 AM McCoy Lake, SD Hourly Weather - Cloudy - 2:00 AM McCoy Lake, SD Hourly Weather - Cloudy - 3:00 AM McCoy Lake, SD Hourly Weather - Cloudy - 4:00 AM McCoy Lake, SD Hourly Weather - Cloudy - 5:00 AM McCoy Lake, SD Hourly Weather - Cloudy - 6:00 AM McCoy Lake, SD Hourly Weather - Cloudy - 7:00 AM McCoy Lake, SD Hourly Weather - Cloudy - 8:00 AM McCoy Lake, SD Hourly Weather - Cloudy - 9:00 AM McCoy Lake, SD Hourly Weather - Cloudy - 10:00 AM McCoy Lake, SD Hourly Weather - Cloudy - 11:00 AM McCoy Lake, SD Hourly Weather - Cloudy - 12:00 PM
Clear Clear Partly Cloudy Partly Cloudy Partly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
88°F31°C 89°F32°C 89°F32°C 90°F32°C 89°F32°C 88°F31°C 87°F31°C 84°F29°C 82°F28°C 79°F26°C 77°F25°C 76°F24°C 74°F23°C 72°F22°C 71°F22°C 69°F21°C 68°F20°C 68°F20°C 67°F19°C 69°F21°C 70°F21°C 72°F22°C 74°F23°C 75°F24°C
- - - - - - - Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain - - - - -
1% 1% 1% 1% 1% 1% 1% 65% 65% 65% 65% 65% 65% 67% 67% 67% 67% 67% 67% 15% 15% 15% 15% 15%
67°F19°C 67°F19°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 68°F20°C 67°F19°C 66°F19°C 65°F18°C 65°F18°C 64°F18°C 64°F18°C 63°F17°C 63°F17°C 64°F18°C 64°F18°C 65°F18°C 66°F19°C 67°F19°C
50% 48% 50% 49% 50% 54% 55% 61% 65% 72% 74% 74% 76% 79% 81% 84% 87% 84% 87% 84% 81% 79% 76% 76%
E E E E ENE ENE NE NE NE NNE NNE NE NE NE ENE ENE ENE E E E E E E E
8 mph 8 mph 7 mph 7 mph 7 mph 11 mph 11 mph 11 mph 14 mph 14 mph 14 mph 10 mph 10 mph 10 mph 10 mph 10 mph 10 mph 7 mph 7 mph 7 mph 8 mph 8 mph 8 mph 9 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
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POP
Dewpoint
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POP = Probability of Precipitation. ** Indicates missing data/values from KMHE model statistics.

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Prob Precip % = Probability of Precipitation.

McCoy Lake 36 Hour Forecast

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

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