Forecast for tonight: Mostly clear, with a low around -19. Wind chill values as low as -36. Northwest wind around 5 mph. Tuesday: Sunny and cold, with a high near 2. Wind chill values as low as -36. Northwest wind 5 to 10 mph. Tuesday Night: Partly cloudy, with a low around -13. Wind chill values as low as -27. Northwest wind around 5 mph.