Lannon Lake, MN 7-Day Night Weather Forecast
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Lannon Lake, MN Weather Forecast


Lannon Lake, MN Weather Forecast Date: 437 PM CDT Sun Aug 02 2026
The area/counties/county of: Big Stone, including the city of Ortonville.or toggle through each period.
Tonight... Partly cloudy. Lows in the mid 60s. Southeast winds 15 to 20 mph with gusts up to 30 mph.
Monday... Partly sunny in the morning, then becoming mostly cloudy. Humid with highs in the mid 80s. Southeast winds 15 to 20 mph with gusts up to 30 mph.
Monday Night... Mostly cloudy with a chance of thunderstorms. Showers likely after midnight. Patchy smoke after midnight. Humid with lows in the upper 50s. South winds 15 to 20 mph, becoming northwest after midnight. Chance of rain 70%.
Tuesday... Patchy smoke in the morning. Mostly sunny. Not as warm. Less humid with highs in the mid 70s. Northwest winds 5 to 10 mph with gusts up to 20 mph.
Tuesday Night... Mostly clear. Lows in the lower 50s. Southwest winds around 5 mph.
Wednesday... Mostly clear. Highs in the lower 80s. Lows around 60.
Thursday... Mostly clear. Highs in the lower 80s. Lows around 60.
Friday... Mostly clear. Highs in the lower 80s. Lows around 60.
Saturday... Mostly clear. Highs in the lower 80s. Lows around 60.
Saturday Night... Mostly clear with a slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows in the lower 60s. Chance of rain 20%.
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