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Triadelphia Reservoir
Brookville, MD · Montgomery County
Right Now
Clear
Water
71°
Wind
3 mph
SSW
Gusts
6 mph
Pressure
29.90
steady
Forecast - Sat, Jul 11
High / Low
86° / 70°
Wind
4 mph
gusts 14 mph
Precip
59%
UV
6
Sunrise
9:51 AM
Sunset
12:35 AM
Every forecast metric for the week ahead, plus best days for fishing, boating, swimming, and paddling.
Quick recommendations based on wind, precip, pressure, solunar, and temperature.
Best for Fishing
Mon, Mon, Jul 13
Mon, Jul 13 scores 70/100: Solunar 4/5, Wind 7 mph.
Best for Boating
Mon, Mon, Jul 13
Mon, Jul 13 scores 90/100: Wind 7 mph, Rain 0%.
Best for Swimming
Mon, Mon, Jul 13
Mon, Jul 13 scores 80/100: Air 84°F, Rain 0%.
Best for Paddling
Mon, Mon, Jul 13
Mon, Jul 13 scores 85/100: Wind 7 mph, Rain 0%.
Ask about this week:
Swipe to see all 9 days
| Metric | Sat11 | Sun12 | Mon13 | Tue14 | Wed15 | Thu16 | Fri17 | Sat18 | Sun19 |
|---|---|---|---|---|---|---|---|---|---|
| Condition | Drizzle | Drizzle | Mostly Cloudy | Clear | Clear | Mostly Clear | Drizzle | Partly Cloudy | Drizzle |
| High / Low | 86°/70° | 83°/70° | 84°/66° | 90°/67° | 97°/71° | 96°/75° | 90°/77° | 86°/73° | 87°/72° |
| Precip | 59% | 65% | 0% | 0% | 0% | 44% | 36% | 0% | 36% |
| Wind | 7 mphgust 14 | 9 mphgust 18 | 7 mphgust 14 | 5 mphgust 14 | 8 mphgust 18 | 6 mphgust 17 | 6 mphgust 13 | 8 mphgust 16 | 11 mphgust 24 |
| Pressure | 29.95" stable | 30.09" rising | 30.18" rising | 30.11" falling | 29.96" falling | 29.94" falling | 29.94" stable | 29.94" stable | 29.83" falling |
| UV Index | 6 | 5 | 5 | 10 | 10 | 9 | 6 | 6 | 7 |
| Sunrise | 9:51 AM | 9:52 AM | 9:52 AM | 9:53 AM | 9:54 AM | 9:55 AM | 9:55 AM | 9:56 AM | 9:57 AM |
| Sunset | 12:35 AM | 12:35 AM | 12:34 AM | 12:34 AM | 12:33 AM | 12:33 AM | 12:32 AM | 12:31 AM | 12:31 AM |
| Bite Rating | 2/5waning crescent | 3/5waning crescent | 4/5NEW | 4/5NEW | 3/5NEW | 3/5NEW | 2/5waxing crescent | 2/5waxing crescent | 2/5waxing crescent |
Today Read
Triadelphia ReservoirWind read
Calm
4 mph avg
Water read
71°
Warm-water bite
Air range
70° / 86°
today
Precip
59%
watch timing
Today's forecast for Triadelphia Reservoir has calm wind, 70F to 86F air temperatures, 59% chance of precipitation, and 71F water.
Trip planner
Warm water pushes the plan toward oxygen, shade, depth changes, and low light. The planning constraint is weak timing.
Uses 8 live data sources for this lake. Tap a stat or ask a question.
Fishing Forecast
waning crescent
Major
1:48 PM - 4:18 PM
Minor
5:55 AM - 7:25 AM
Detailed temperature readings across your lake.
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Water Temperature History
Current
76°
Jul 19
Low
35°
Feb 22
Average
62°
Last 12 Months
Warmest avg: July (79°F)
Coolest avg: February (41°F)
Rapid warming: March → April (+12°F)
Sharpest cooling: October → November (-11°F)
Wind speed, gusts, and pressure trends for trip timing.
Swipe days or tap points
4am - 3am
Peak Wind
7 mph
9pm
Peak Gust
14 mph
highest gust
Pressure
29.91 inHg
rising
Visibility
11 mi
37% 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
2/5waning crescent
Water at 71°F -- warm-water species active.
Nearby Lakes
FAQ
Triadelphia Reservoir covers 832.00 acres (1.30 square miles)
Triadelphia Reservoir is located in Brookville, Montgomery County, MD. It is accessible to the public for outdoor activities.