I do not live in Cleveland, but as a meteorologist I can give you some idea of what is going on there...
Currently, the Cleveland airport is reporting 13°F with NW winds at 18mph...a wind chill factor of -4! Don't expect the temperature to rise today...in fact, it will likely drop a few degrees. And winds will remain strong...occasionally up to 30mph with below zero wind chills prevalent. Moderate snow is currently falling as well.
Cleveland is in a lake effect snow warning. The city is expected to see accumulations approaching a foot. But with lake effects, you can have some areas in the city pushing 14 to 16 inches and others in the 6 to 8 inch range. You may see periods where it is snowing like crazy for an hour or so and then get dry breaks that last at least that long. Lake effect snows fall in bands...not a solid wide swath. That said, it's a lot of snow regardless and will have some effect on the game. But even not taking the snow into account, the wind and temperatures are brutal. The football will be cold and hard. Ball carriers and receivers hands will be quite cold.
We watched the game in Denver (vs Oakland) with the snow a couple of weeks ago which turned out to quite high-scoring. However, the temperatures and winds were not a major factor. Today will be much different in Cleveland. Seems to me that this will be a low-scoring affair, pounding out yardage on the ground. It will be interesting to see how well the grounds keepers manage the field, thus affecting footing.
This will be a fun game to watch...but not necessarily fun if you have fantasy players involved (outside of maybe the Chargers D).