County Forecast for Harmony , MN
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231500-
Fillmore-
Including the city of Preston
241 AM CDT Mon Mar 23 2026

Today   Sunny. Highs in the mid 40s. North winds 5 to 10 mph, becoming southwest this afternoon.
Tonight   Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 30s. South winds 10 to 15 mph.
Tuesday   Mostly sunny. Highs in the mid 50s. Southwest winds 10 to 15 mph.
Tuesday night   Mostly cloudy. Lows in the lower 40s. South winds 10 to 15 mph.
Wednesday   Partly sunny. Highs in the lower 60s. Southwest winds 10 to 15 mph.
Wednesday night and thursday   Mostly cloudy. Lows in the mid 40s. Highs in the lower 60s.
Thursday night   Much colder. Mostly cloudy. Lows in the mid 20s.
Friday   Much colder. Mostly sunny. Highs in the lower 40s.
Friday night   Mostly clear. Lows in the mid 20s.
Saturday   Sunny. Highs around 50.
Saturday night and sunday   Partly cloudy. Lows in the lower 30s. Highs in the upper 50s.
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Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Strong Cold Front Squashing Heat This Weekend

Record heart across the Plains, but will be followed by a strong cold front over the weekend. Scattered showers for the eastern Midwest, Northeast. » More DTN Weather Commentary

Posted at 11:59AM Fri Mar 20, 2026 CDT
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