A chilly Labor Day morning in the Northland; Isolated strong to severe thunderstorms possible tonight

Temperatures dipped into the low to mid 30s in parts of northern Minnesota early this morning, cold enough where there may have been some patchy frost!

Climatological Date of first freeze (32 F)

Low temperature reports from Monday morning, September 6, 2021

Hibbing, MN: 32 F (Record low for 9/6 is 29 set in 2018)
Brimson, MN: 34 F
Cotton, MN: 35 F
Bigfork, MN: 36 F
3 E Wright, MN: 36 F
2 S Tower, MN: 36 F
Crane Lake, MN: 37 F
Eveleth, MN: 37 F
Aitkin, MN: 37 F
McGregor, MN: 37 F
Solon Springs, WI: 37 F
Hayward, WI: 38 F
International Falls, MN: 39 F
Ely, MN: 39 F
Orr, MN: 39 F
Cook, MN: 39 F
Cloquet, MN: 39 F
Superior, WI: 39 F


Isolated strong to severe thunderstorms remain possible tonight over much of the Northland (dark green area) with a Marginal Risk for severe thunderstorms — Main severe weather threat is from large hail to quarter size (1″ diameter) with a lesser risk from damaging wind gusts >58 mph. Frequent lightning and heavy downpours are also possible with the storms that develop tonight.

Timing of tonight’s thunderstorm threat in the Northland will begin mainly after 7 PM and then continuing through the overnight.

For Duluth and Superior — Scattered showers and thunderstorms are possible late tonight (~11 PM to 4 AM)


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