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Treaty Line — Boating Conditions
Tides, water temp & weather • Union County, IN
Boating Conditions at Treaty Line
Current wind, air and water temperature, tide times and a 10-day forecast for Treaty Line on Brookville Lake in Union County, Indiana. Check conditions before you launch.
Right Now
Mostly clear
Calm — good conditions to get on the water
Air Temp
74°F
Wind
2 mph
gusts 4 mph
Next Few Hours
Now
⛅
74°
14%
4 mph
12AM
⛅
73°
12%
3 mph
1AM
⛅
73°
18%
2 mph
2AM
⛅
73°
27%
4 mph
3AM
⛅
72°
20%
3 mph
4AM
⛅
71°
16%
4 mph
10-Day Boating Forecast
Sat, 9/19
🌧️
84° / 68°
Wind 14, gusts 19 mph
21% rain
Sun, 9/20
🌧️
83° / 70°
Wind 11, gusts 27 mph
27% rain
Mon, 9/21
🌧️
68° / 58°
Wind 13, gusts 25 mph
47% rain
Tue, 9/22
⛅
66° / 56°
Wind 14, gusts 26 mph
21% rain
Wed, 9/23
⛅
59° / 54°
Wind 12, gusts 22 mph
35% rain
Thu, 9/24
🌧️
62° / 53°
Wind 9, gusts 17 mph
8% rain
Fri, 9/25
⛅
69° / 56°
Wind 11, gusts 19 mph
3% rain
Sat, 9/26
⛅
65° / 52°
Wind 8, gusts 18 mph
2% rain
Sun, 9/27
⛅
68° / 46°
Wind 11, gusts 18 mph
5% rain
Mon, 9/28
⛅
72° / 50°
Wind 8, gusts 12 mph
8% rain
Weather & wave data from Open-Meteo. Tides & water temperature from NOAA CO-OPS. Conditions are estimates for trip planning — always confirm locally and check official marine forecasts before heading out.
