Updated Look At The 2024 Grandma’s Marathon Weekend Weather Forecast

For the last few years, the various races of Grandma's Marathon Weekend have seen fast sellouts, with this world-class event growing in popularity each year. With thousands of runners and spectators preparing for this weekend, weather is on the minds of everyone.

As any Northlander or Grandma's veteran knows, it isn't just the races. Live music at Bayfront Festival Park returns once again with Rock the Bayfront 2024 (see the lineup here) capping off the weekend's events.

The threat of rain is looming for this year, but the chances have been diminishing as the events have drawn closer. While rain and thunderstorms are still possible, there have been some chances to the forecast.

While there is a chance of rain, it doesn't look like it will be an all-day rain. It will more likely be intermittent showers and storms.

Event organizers have been letting everyone know they're watching the weather situation, announcing they will make an official call on the race if there are thunderstorms early Saturday morning.

Here's an event-by-event look at what to expect from the weather for Grandma's Marathon Weekend:

READ MORE: What Are The Average Weather Conditions For Grandma's Marathon? Full Weather History Breakdown

Friday Evening - William A Irvin 5K, Entertainment Concert (Duluth)

Cloudy with a 30% chance of rain and a slight chance of a thunderstorm. Temperatures will stay in the mid-50s with a slight lake breeze through the evening. Rain chances increase slightly late in the evening.

Saturday Morning - Grandma's Marathon Starting Line (Two Harbors)

Cloudy and around 55 degrees with a 30% chance of rain and a slight chance of a thunderstorm in the morning. A northeast breeze of 10-15 mph will provide a bit of a tailwind during the morning.

Saturday Morning - Gary Bjorklund Half Marathon/Grandma's Marathon Finish Line (Duluth)

Cloudy with temperatures around 55 degrees. There is a 50% chance of some intermittent rain and a slight chance of a thunderstorm. An east-northeast breeze (off the lake) of 10-15 mph through the morning

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Saturday Daytime (Duluth)

Rain chances diminish some into the afternoon hours, with a 40% chance of rain showers and a slight chance of a thunderstorm. It will remain cloudy with temperatures getting up to around 60 degrees. An east-northeast breeze of 10-15 mph will stick around.

Saturday Evening - Entertainment Tent Concerts (Duluth)

Rain and thunderstorm chances continue to diminish through the evening, with mostly cloudy conditions. Wind will switch to out of the north through the evening, with the temperature dropping slightly, to around 55 degrees, into the evening.