Tue Feb 18 12:44:04 AM EST 2025 Big Stone- Including the city of Ortonville 1143 PM CST Mon Feb 17 2025 ...EXTREME COLD WARNING REMAINS IN EFFECT UNTIL NOON CST /11 AM MST/ WEDNESDAY... .REST OF TONIGHT...Mostly clear. Lows around 25 below. Northwest winds 5 to 10 mph. Wind chill readings 33 below to 43 below zero. .TUESDAY...Partly sunny. Highs around 10 below. Northwest winds 5 to 10 mph. Coldest wind chill readings 35 below to 45 below zero in the morning. .TUESDAY NIGHT...Partly cloudy. Lows around 20 below. Northwest winds 5 to 10 mph. Wind chill readings 32 below to 42 below zero. .WEDNESDAY...Mostly sunny. Highs near zero. Northwest winds 5 to 10 mph. Coldest wind chill readings 28 below to 38 below zero in the morning. .WEDNESDAY NIGHT...Clear. Lows around 15 below. Northwest winds 5 to 10 mph. Wind chill readings 19 below to 29 below zero. .THURSDAY AND THURSDAY NIGHT...Clear. Highs 5 to 10 above. Lows around 5 below. Wind chill readings 19 below to 29 below zero. .FRIDAY...Partly sunny. Highs in the lower 20s. .FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows around 10. Highs in the mid 30s. .SATURDAY NIGHT...Mostly clear. Lows in the mid 20s. .SUNDAY AND SUNDAY NIGHT...Partly cloudy. Highs in the lower 40s. Lows around 30. .MONDAY...Partly sunny. Highs in the upper 40s.