Skip to content
lakeglance

MinnesotaNatural lake, 1,528 acres, Cass County

Portage Lake wind forecast

Shoreline: USGS National Hydrography Dataset

7-day outlook

Daylight hours, 8am to 7pm local time. Wind in knots.

  1. TodayOct 26

    1-3kt

    NE, gusts 10

    High 45°F, rain 19%

    Light wind
  2. TueOct 27

    3-5kt

    SE, gusts 16

    High 49°F, rain 88%

    Use caution
  3. WedOct 28

    0-3kt

    SSW, gusts 11

    High 58°F, rain 20%

    Light wind
  4. ThuOct 29

    0-2kt

    WNW, gusts 8

    High 55°F, rain 0%

    Light wind
  5. FriOct 30

    1-2kt

    NNE, gusts 10

    High 53°F, rain 15%

    Light wind
  6. SatOct 31

    1-3kt

    SSE, gusts 12

    High 56°F, rain 44%

    Stay ashore
  7. SunNov 1

    1-3kt

    SW, gusts 11

    High 56°F, rain 28%

    Light wind

Hour by hour, next 3 days

Wind and gusts0 to 30+ ktScoreGood, caution, stay ashoreNightBest windowArrows point where the wind blows to.

This week on Portage

Over the next 7 days on Portage Lake, the windiest stretch looks like Tuesday, with gusts to about 16 kt. Thursday is the calmest day in the outlook, topping out near 2 kt.

Thursday looks best for kayaks and paddleboards. Mornings are usually calmer than afternoons, so check the hourly strip for the exact window.

Reading a lake wind forecast

Sustained wind is the average over a couple of minutes; gusts are the short peaks. On inland water the gap between the two matters as much as the average. A steady 12 kt is a pleasant sail, while 8 kt gusting 20 kt knocks small boats flat and tires out paddlers.

On a lake the size of Portage, waves stay modest, but nearby hills, trees and buildings bend the wind. Expect shifts and puffs, especially close to shore, and treat the forecast speed as an average across open water.

The National Weather Service forecast covers a 2.5 km grid, so local effects like a sea breeze off a big lake, a cold front or afternoon thunderstorms can arrive earlier or stronger than shown. Check the forecast again on the morning you go, and keep an eye on small craft advisories.

Portage Lake forecast questions

What is the wind forecast for Portage Lake this weekend?

In the National Weather Service forecast from October 26: Saturday: SSE wind 1 to 3 kt, gusts to 12 kt, high near 56°F. Sunday: SW wind 1 to 3 kt, gusts to 11 kt, high near 56°F. The live cards above always show the latest update.

When is the best day to sail on Portage Lake this week?

Based on the National Weather Service forecast from October 26, Thursday looks best, with WNW wind around 0 to 2 kt and gusts near 8 kt. Forecasts beyond three days shift, so check the live day cards above and look again the night before.

Where does the Portage Lake wind forecast come from?

From the National Weather Service gridded forecast for the 2.5 km cell over the lake. It is the same forecast local NWS offices use, updated several times a day. We convert wind to knots and add our own go or no-go call for each activity.

What wind is too strong for a kayak or paddleboard?

We flag paddling as risky once sustained wind passes about 8 kt or gusts pass 12 kt, and advise staying ashore above 12 kt sustained or 18 kt gusts. Offshore wind is the most dangerous because it pushes you away from the launch.

Nearby lakes

If Portage is blown out, these are the closest alternatives. Tap through for their wind forecasts.