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Humboldt, SD · Minnehaha County
Right Now
Windy
Water
72°
Wind
16 mph
NW
Gusts
25 mph
Pressure
29.76
falling
Forecast - Tue, Jun 16
High / Low
74° / 50°
Wind
9 mph
gusts 28 mph
Precip
24%
UV
5
Sunrise
10:46 AM
Sunset
2:11 AM
Today Read
Grass LakeWind read
Calm
9 mph avg
Water read
72°
Warm-water bite
Air range
50° / 74°
today
Precip
24%
low concern
Today's forecast for Grass Lake has calm wind, 50F to 74F air temperatures, 24% chance of precipitation, and 72F water.
Turn Grass Lake's live water temp, forecast, solunar timing, and fish data into a plan for today — what to throw, when to go, and when to move.
Fishing Forecast
NEW
Major
7:47 PM - 10:17 PM
Minor
11:35 AM - 1:05 PM
Detailed temperature readings across your lake.
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Fish Species
6Water Temperature History
Current
79°
Jun 21
Low
36°
Mar 23
Average
61°
Last 12 Months
Warmest avg: June (79°F)
Coolest avg: November (44°F)
Rapid warming: April → May (+15°F)
Sharpest cooling: October → November (-14°F)
Wind speed, gusts, and pressure trends for trip timing.
Swipe days or tap points
5am - 4am
Peak Wind
13 mph
5am
Peak Gust
28 mph
highest gust
Pressure
29.82 inHg
rising
Visibility
16 mi
1% clouds
Tap chart for details, swipe left or right for different days.Tap chart for details • Swipe for different days
Pressure stability helps plan windows
Tap chart points for pressure details
Nearby Lakes
Fishing Forecast
3/5NEW
Water at 72°F -- warm-water species active.
Fish Species
6Nearby Lakes
FAQ
Grass Lake covers 0.00 acres (0.00 square miles)
Grass Lake is located in Humboldt, Minnehaha County, SD. It is accessible to the public for outdoor activities.