Blue Marsh Lake Water Level
USGS gauge 01470870 · near Bernville, PA · USACE
Latest reading Oct 26, 6:00 PM · elevation
Blue Marsh Lake is 3.8 ft below normal summer pool today (286.25 ft vs 290.00 ft) — about normal for late October. It is 98% full. The Army Corps seasonal target for today is 289.27 ft (3.0 ft below). It has fallen 0.30 ft since yesterday and is down 1.85 ft over 7 days.
Water level chart
ft above sea levelNormal summer pool (290.0 ft) is 3.8 ft above the latest reading, off this chart
ReadingNormal range for the date (25th–75th pct.)Median for the date
Blue Marsh Lake fishing report & conditions
updated Oct 26, 6:49 PM ETLake 3.8 ft below normal summer pool, level falling, light WNW wind — good fall fishing day (6/10), best window 7:34 AM–8:34 AM (moonset near sunrise).
Lake 3.8 ft below normal summer pool, level falling, light NNE wind — fair fall fishing day (5/10), best window 6:18 PM–7:18 PM (moonrise near sunset).
- Water temp—no water-temperature sensor on this water yet
- Air temphigh 63°F / low 44°FPatchy Fog then Sunny
- WindLight WNW4–10 mph 6 AM–6 PM, gusts to 13
- Level3.8 ft below normal summer poolLevel falling 0.30 ft in 24 h
Official Pennsylvania fishing report: Pennsylvania Fish and Boat Commission — Biologist reports
Best fishing times today
Today is a good fishing day (solunar + local conditions)
6/10
Full moon · 99% lit · New moon Mon, Nov 9 · Sunrise 7:27 AM · Sunset 6:08 PM
Major fishing times
- Moon underfoot12:10 PM–2:10 PM
Minor fishing times
- Moonset7:34 AM–8:34 AMSunrise
- Moonrise5:38 PM–6:38 PMSunset
Fishing times for the next 7 days
| TodayOct 26 | 6/10Good | Major 12:10 PM–2:10 PM Minor 7:34 AM–8:34 AM · 5:38 PM–6:38 PM Light wind 4–10 mph |
|---|---|---|
| TueOct 27 | 5/10Fair | Major 12:39 AM–2:39 AM · 1:08 PM–3:08 PM Minor 8:52 AM–9:52 AM · 6:18 PM–7:18 PM Light wind 4–6 mph |
| WedOct 28 | 2/10Poor | Major 1:39 AM–3:39 AM · 2:11 PM–4:11 PM Minor 10:09 AM–11:09 AM · 7:09 PM–8:09 PM Calm wind 0–4 mph |
| ThuOct 29 | 4/10Fair | Major 2:43 AM–4:43 AM · 3:15 PM–5:15 PM Minor 11:19 AM–12:19 PM · 8:12 PM–9:12 PM Calm wind 0–7 mph |
| FriOct 30 | 3/10Poor | Major 3:48 AM–5:48 AM · 4:19 PM–6:19 PM Minor 12:19 PM–1:19 PM · 9:23 PM–10:23 PM Calm wind 1–7 mph |
| SatOct 31 | 4/10Fair | Major 4:50 AM–6:50 AM · 5:19 PM–7:19 PM Minor 1:07 PM–2:07 PM · 10:38 PM–11:38 PM Calm wind 0–4 mph |
| SunNov 1 | 4/10Fair | Major 4:48 AM–6:48 AM · 5:15 PM–7:15 PM Minor 12:44 PM–1:44 PM · 10:53 PM–11:53 PM Calm wind 0–6 mph |
How this rating works
Solunar theory says fish feed more when the moon is overhead or underfoot (major periods, about 2 hours) and around moonrise and moonset (minor periods, about 1 hour). On a lake or river there is no tide, so instead of tide changes we score the local conditions anglers watch: the barometric pressure trend, the wind, whether the lake level is steady, and the water temperature where it is measured.
| Base | every day starts at 1 | 1 |
|---|---|---|
| Sunrise / sunset | a period overlaps sunrise or sunset ±1 h: major +2, minor +1 (max 3) (Moonset × sunrise +1; Moonrise × sunset +1) | 2 |
| Moon phase | within 2 days of a new or full moon +2, within 4 days +1 (today: 0.5 days) | 2 |
| Local conditions | pressure 6 AM→6 PM: falling +2, steady or slowly rising +1, rising fast 0 · daytime wind 4–15 mph +1, over 20 mph (or gusts over 30) −1 · level within ±0.25 ft in 24 h +1 · water 55–75°F +1, below 45°F or above 85°F −1 (0 to 4 in total)
| 1 |
| Today | 6, rounded | 6/10 |
1–3 poor · 4–5 fair · 6–7 good · 8–10 excellent. Pressure and wind are the NOAA National Weather Service hourly forecast for this spot; the level/flow trend is the latest 24 hours of readings on this page. Days 2–7 score sun, moon, forecast pressure and forecast wind only (level and water temperature aren’t forecast). Solunar times are a rule of thumb, not a guarantee.
Solunar periods calculated for 40.38, -76.03 (moon times from astronomical equations, Blue Marsh Lake local time).
Best fishing times today
Today is a fair fishing day (solunar + local conditions)
5/10
Waning gibbous · 97% lit · New moon Mon, Nov 9 · Sunrise 7:28 AM · Sunset 6:06 PM
Major fishing times
- Moon overhead12:39 AM–2:39 AM
- Moon underfoot1:08 PM–3:08 PM
Minor fishing times
- Moonset8:52 AM–9:52 AM
- Moonrise6:18 PM–7:18 PMSunset
Fishing times for the next 7 days
| TodayOct 27 | 5/10Fair | Major 12:39 AM–2:39 AM · 1:08 PM–3:08 PM Minor 8:52 AM–9:52 AM · 6:18 PM–7:18 PM Light wind 4–6 mph |
|---|---|---|
| WedOct 28 | 2/10Poor | Major 1:39 AM–3:39 AM · 2:11 PM–4:11 PM Minor 10:09 AM–11:09 AM · 7:09 PM–8:09 PM Calm wind 0–4 mph |
| ThuOct 29 | 4/10Fair | Major 2:43 AM–4:43 AM · 3:15 PM–5:15 PM Minor 11:19 AM–12:19 PM · 8:12 PM–9:12 PM Calm wind 0–7 mph |
| FriOct 30 | 3/10Poor | Major 3:48 AM–5:48 AM · 4:19 PM–6:19 PM Minor 12:19 PM–1:19 PM · 9:23 PM–10:23 PM Calm wind 1–7 mph |
| SatOct 31 | 4/10Fair | Major 4:50 AM–6:50 AM · 5:19 PM–7:19 PM Minor 1:07 PM–2:07 PM · 10:38 PM–11:38 PM Calm wind 0–4 mph |
| SunNov 1 | 4/10Fair | Major 4:48 AM–6:48 AM · 5:15 PM–7:15 PM Minor 12:44 PM–1:44 PM · 10:53 PM–11:53 PM Calm wind 0–6 mph |
| MonNov 2 | 4/10Fair | Major 5:41 AM–7:41 AM · 6:05 PM–8:05 PM Minor 1:15 PM–2:15 PM Light wind 1–7 mph |
How this rating works
Solunar theory says fish feed more when the moon is overhead or underfoot (major periods, about 2 hours) and around moonrise and moonset (minor periods, about 1 hour). On a lake or river there is no tide, so instead of tide changes we score the local conditions anglers watch: the barometric pressure trend, the wind, whether the lake level is steady, and the water temperature where it is measured.
| Base | every day starts at 1 | 1 |
|---|---|---|
| Sunrise / sunset | a period overlaps sunrise or sunset ±1 h: major +2, minor +1 (max 3) (Moonrise × sunset +1) | 1 |
| Moon phase | within 2 days of a new or full moon +2, within 4 days +1 (today: 1.5 days) | 2 |
| Local conditions | pressure 6 AM→6 PM: falling +2, steady or slowly rising +1, rising fast 0 · daytime wind 4–15 mph +1, over 20 mph (or gusts over 30) −1 · level within ±0.25 ft in 24 h +1 · water 55–75°F +1, below 45°F or above 85°F −1 (0 to 4 in total)
| 1 |
| Today | 5, rounded | 5/10 |
1–3 poor · 4–5 fair · 6–7 good · 8–10 excellent. Pressure and wind are the NOAA National Weather Service hourly forecast for this spot; the level/flow trend is the latest 24 hours of readings on this page. Days 2–7 score sun, moon, forecast pressure and forecast wind only (level and water temperature aren’t forecast). Solunar times are a rule of thumb, not a guarantee.
Solunar periods calculated for 40.38, -76.03 (moon times from astronomical equations, Blue Marsh Lake local time).
Weather & wind at Blue Marsh Lake
air temperature, not water3-day forecast
- Tonight44°Patchy FogWind NW 5 mphRain 0%
- Tuesday63° / 39°Patchy Fog then SunnyWind N 5 mphRain 0%
- Wednesday65° / 46°Mostly SunnyWind E 0 to 5 mphRain 0%
NOAA National Weather Service forecast for 40.379, -76.033 (grid PHI), issued Oct 26, 4:09 PM local time. High / low are air temperatures; water temperature is in the fishing section above. The “Air temp & weather” tile at the top refreshes live.
October 26 in history
22 years of level records- Today286.25 ft
- Same date last year285.38 ft2025
- Median286.12 ft
- Normal range285.56 ft – 286.56 ft25th–75th percentile
- Highest since 2005287.54 ft2010
- Lowest since 2005284.33 ft2017
Last 10 days
| Date | Level (ft) | Change |
|---|---|---|
| Mon Oct 26 (today) | 286.36 | −0.39 |
| Sun Oct 25 | 286.75 | −0.28 |
| Sat Oct 24 | 287.03 | −0.27 |
| Fri Oct 23 | 287.30 | −0.25 |
| Thu Oct 22 | 287.55 | −0.24 |
| Wed Oct 21 | 287.79 | −0.24 |
| Tue Oct 20 | 288.03 | −0.36 |
| Mon Oct 19 | 288.39 | −0.48 |
| Sun Oct 18 | 288.87 | −0.41 |
| Sat Oct 17 | 289.28 | −0.39 |
Daily mean of all readings that day; today is the average so far.
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Nearby lakes & rivers
- Schuylkill River at Reading6 mi · River713 cfs90% of normal
- Schuylkill River at Berne10 mi · River229 cfs86% of normal
- Struble Lake21 mi · Lake · Honey Brook616.92 ft24h +0.02 ft
- Schuylkill River at Pottstown22 mi · River850 cfs96% of normal
- Chambers Lake26 mi · Lake · Wagontown579.75 ft±0.00 ft vs normal
- Conestoga River at Lancaster26 mi · River242 cfs152% of normal
Guides
All guides →About this data
- Gauge
- USGS 01470870 — Blue Marsh Lake near Bernville, PA
- Location
- 40.3793, -76.0327 · Pennsylvania
- Measures
- Reservoir water-surface elevation above datum
- Daily statistics
- 2005–2026 (approved daily values)
- Latest reading
- Oct 26, 6:00 PM local time (provisional)
- Page built
- Oct 26, 2026 6:49 PM ET
- Normal summer pool
- 290.00 ft — U.S. Army Corps of Engineers, Philadelphia District
- Seasonal target today
- 289.27 ft — U.S. Army Corps of Engineers (Top of Conservation)
- Storage
- 17,142 of 17,468 acre-ft (Top of Conservation)
- Also from
- U.S. Army Corps of Engineers
Source: U.S. Geological Survey Water Data for the Nation (USGS monitoring location page). Readings every 15–60 minutes; the newest values are provisional. Percentiles compare today’s reading with every past year’s daily mean for the same calendar date. Weather: NOAA National Weather Service.