Norrbotten has experienced a persistent heat wave with temperatures above 30 °C for two weeks, and SMHI forecasts 32 °C in Luleå on Wednesday. Meteorologist Linus Karlsson attributes the prolonged heat to stable high pressure, with warmth expected to continue through the week.

During week 29 (July 14–20, 2025), Luleå recorded 128 hours of sunshine—the highest weekly total in Sweden since measurements began—surpassing the previous record by four hours.

SOS Alarm in Norrbotten, Sweden is experiencing extreme call volumes from approximately 20 fires triggered by lightning in a heatwave, resulting in delayed emergency response times.

Several wildfires broke out across Överkalix and other parts of Norrbotten following a thunderstorm and lightning strikes on July 22, 2025, overwhelming local emergency services.

Grong and Namsskogan in Trøndelag have logged 13 straight days above 30 °C, breaking the 43-year Nesbyen record, amid a nationwide heatwave.