A shallow cold front moving across the St. Lawrence Valley early this morning will bring periods of light snow until daybreak with a dusting to one inch in some areas, according to the National Weather Service (NWS).

Developing north winds following the frontal passage and abundant stratus clouds will

result in colder temperatures today with daytime highs only in the upper teens to lower 20s, forecasters predict.

Skies will clear late in the day as high pressure builds in from southern Quebec, the service says.

Diminishing winds and clearing skies will yield very cold temperatures for tonight, NWS says. Overnight lows will be around 5 with wind chill values of -4.

As the high pressure shifts to our east, will see a gradual moderation in temperatures with highs into the mid to upper 20s on Thursday, and 35 to 40 degrees for Friday.

The forecast through Tuesday is as follows:

Thursday

Increasing clouds, with a high near 29. Wind chill values as low as -4. Light east wind.

Thursday Night

Mostly cloudy, with a low around 24. South wind 3 to 6 mph.

Friday

Mostly cloudy, with a high near 41. South wind 8 to 13 mph.

Friday Night

A 50 percent chance of showers after 7pm. Cloudy, with a low around 36. South wind 6 to 9 mph.

Saturday

A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 40. Southwest wind around 6 mph becoming northwest in the afternoon.

Saturday Night

Mostly cloudy, with a low around 28. North wind 3 to 6 mph.

Sunday

Mostly sunny, with a high near 38. Light and variable wind becoming northwest around 5 mph in the afternoon.

Sunday Night

Mostly cloudy, with a low around 29. South wind around 5 mph.

Monday

A chance of rain and snow showers. Mostly cloudy, with a high near 37. Southwest wind around 7 mph becoming northwest in the afternoon. Chance of precipitation is 30%.

Monday Night

A 30 percent chance of snow showers. Mostly cloudy, with a low around 21. Northwest wind around 8 mph.

Tuesday

Partly sunny, with a high near 28. West wind 6 to 8 mph.