Why am i getting little to no heat?

I live in wisco and I had the same problem put some cardboard between the radiators and it fixed it just remember to take it out in the spring

Between the radiator? Any idea why it worked?

If air flow is OK out of your ducts, I would look to a thermostat with a higher temp setting or possibly a heat sensor feeding your computer (ECM). The cardboard blocking the airflow is an old trick but it does work sometimes. Theory is that the less air flowing over the radiator coils will allow the engine temp to rise more. You want this to happen but a higher temp thermostat will essentially do the same thing.

Thank you!!