WashingtonReservoir, Asotin County, Whitman County
Lower Granite Lake wind forecast
7-day outlook
Daylight hours, 8am to 7pm local time. Wind in knots.
-
TodayOct 26
1-5kt
W, gusts 10
High 51°F, rain 84%
Use caution -
TueOct 27
6-9kt
SW, gusts 17
High 53°F, rain 45%
Good -
WedOct 28
3-8kt
SSW, gusts 16
High 51°F, rain 85%
Use caution -
ThuOct 29
0-4kt
ESE, gusts 9
High 51°F, rain 29%
Light wind -
FriOct 30
0-2kt
W, gusts 6
High 48°F, rain 23%
Light wind -
SatOct 31
1-2kt
SSW, gusts 5
High 49°F, rain 19%
Light wind -
SunNov 1
1-3kt
WSW, gusts 7
High 50°F, rain 19%
Light wind
Hour by hour, next 3 days
This week on Lower Granite
Over the next 7 days on Lower Granite Lake, the windiest stretch looks like Tuesday, with gusts to about 17 kt. Friday is the calmest day in the outlook, topping out near 2 kt.
Tuesday is the pick for sailing, and Friday 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 Lower Granite, 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.
Lower Granite Lake forecast questions
What is the wind forecast for Lower Granite Lake this weekend?
In the National Weather Service forecast from October 26: Saturday: SSW wind 1 to 2 kt, gusts to 5 kt, high near 49°F. Sunday: WSW wind 1 to 3 kt, gusts to 7 kt, high near 50°F. The live cards above always show the latest update.
When is the best day to sail on Lower Granite Lake this week?
Based on the National Weather Service forecast from October 26, Tuesday looks best, with SW wind around 6 to 9 kt and gusts near 17 kt. Forecasts beyond three days shift, so check the live day cards above and look again the night before.
Where does the Lower Granite 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 Lower Granite is blown out, these are the closest alternatives. Tap through for their wind forecasts.