How cold did it get last night, and is more cold coming?

It was a chilly Sunday morning across Alabama, and even colder temperatures will be possible in the state by the end of the work week.

It will be chilly again tonight, and frost advisories have again been issued for a large part of the state.

The National Weather Service data indicated that temperatures fell into the 30s and 40s across the state overnight early Sunday morning.

Some of the lowest temperatures were 34 degrees reported in Haleyville, Decatur and Talladega.

Here are the lowest temperatures from observed by the weather service from midnight until 6 a.m. Sunday (not the official low temperatures, however):

• Alexander City: 37 degrees

• Andalusia: 45 degrees

• Anniston: 35 degrees

• Auburn: 46 degrees

• Birmingham: 37 degrees

• Decatur: 34 degrees

• Demopolis: 36 degrees

• Dothan: 45 degrees

• Enterprise: 46 degrees

• Eufaula: 41 degrees

• Evergreen: 41 degrees

• Florala: 45 degrees

• Greenville: 42 degrees

• Guntersville: 38 degrees

• Haleyville: 34 degrees

• Huntsville: 36 degrees

• Mobile: 42 degrees

• Montgomery: 36 degrees

• Muscle Shoals: 36 degrees

• Sylacauga: 40 degrees

• Talladega: 34 degrees

• Troy: 38 degrees

• Tuscaloosa: 38 degrees

The weather service expects temperatures today (Sunday) to warm up into the 60s and 70s statewide (see today's forecast high temperatures at the top of this post).

Tonight will be another chilly one, according to forecasters, and frost advisories will be in effect for the Alabama counties in blue below:

The Alabama counties in blue will be under frost advisories through Monday morning.NWS

• The frost advisory for all of north Alabama will be in effect from 11 p.m. Sunday until 8 a.m. Monday.

• The frost advisory for all of central Alabama will be in effect from midnight until 8 a.m. Monday.

• The frost advisory for the northern part of south Alabama (Choctaw, Washington, Clarke, Wilcox, Monroe, Conecuh, Butler and Crenshaw counties) will be in effect from 2 a.m. until 8 a.m. Monday.

North Alabama is again expected to fall into the low to mid-30s. Lows in the 40s are expected in the rest of the state tonight.

Here are tonight's expected low temperatures:

Lows in the 30s and 40s are again expected in Alabama tonight.NWS

Forecasters expect temperatures to warm up some going into the work week -- but then another blast of cold air could arrive in time for the weekend.

The weather service isn't saying lock it in just yet, but said signs were pointing to another wave of cold air making it to Alabama starting on Friday.

Highs on Friday are forecast to stay in the 50s for the northern part of the state on Friday, and south Alabama may only get into the low 60s.

Here are the forecast highs for Friday:

Friday could bring much colder air to Alabama behind a cold front.NWS

Below-freezing temperatures will be possible on Friday night if this forecast holds -- and parts of north Alabama could get into the 20s.

Here is the forecast for temperatures by Saturday morning:

Below-freezing temperatures will be possible from Friday night into Saturday morning in northern Alabama.NWS

The weather service is forecasting the possibility temperatures in the 30s getting all the way into south Alabama.

Saturday morning marks the end of the weather service's forecast range, but forecasters said more freezing temperatures look to be possible Saturday night into Sunday morning as well.

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