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Blue Marsh Lake
75°F
Blue Marsh Lake
Reading, PA · Berks County
75°F water1,148 acres285 ft elev16 fish species
Right Now
86°
Clear
Water
75°
Wind
5 mph
NNE
Gusts
11 mph
Pressure
29.88
rising
LakeMonster planner
Plan Blue Marsh Lake
Blue Marsh Lake
Warm water pushes the plan toward oxygen, shade, depth changes, and low light. The planning constraint is finding the right window.
Best first move
Scout the first break or defined cover closest to a feeding flat.
keep shade, oxygen, and a nearby depth change in the plan A workable forecast window starts near 6am with about 1 mph wind.
Listed targets to ask about: Largemouth bass · Smallmouth bass
9 lake data sources in this readSee dataHideLatest source updated Jul 16, 6:39 AM EDT
- Current water temp
- 75°F
- Water temp history
- 500 readings
- Hourly weather
- 224 hours
- Solunar timing
- 3/5
- Fish species
- 16 listed
- Satellite imagery
- 246 captures
- Thermal imagery
- 1334 captures
- Map structure
- available
- Nearby lakes
- 3 options
The quick read is a planning aid, not a safety or access determination. The assistant will state uncertainty when the page does not contain a specific observation.
Forecast - Thu, Jul 16
High / Low
93° / 72°
Wind
6 mph
gusts 24 mph
Precip
0%
UV
9
Sunrise
5:48 AM
Sunset
8:32 PM
7-Day Weather Outlook
Every forecast metric for the week ahead, plus best days for fishing, boating, swimming, and paddling.
9 day forecast
Best Days This Week
Quick recommendations based on wind, precip, pressure, solunar, and temperature.
Best for Fishing
Mon, Jul 20
62/100
Mon, Jul 20 scores 62/100: Solunar 3/5, Wind 4 mph.
Best for Boating
Fri, Jul 17
90/100
Fri, Jul 17 scores 90/100: Wind 6 mph, Rain 0%.
Best for Swimming
Fri, Jul 17
80/100
Fri, Jul 17 scores 80/100: Air 85°F, Rain 0%.
Best for Paddling
Fri, Jul 17
85/100
Fri, Jul 17 scores 85/100: Wind 6 mph, Rain 0%.
Temperature Range
High Low
Precip & Wind
Rain % Wind mph
Daily Breakdown
Swipe to see all 9 days
| Metric | Thu16 | Fri17 | Sat18 | Sun19 | Mon20 | Tue21 | Wed22 | Thu23 | Fri24 |
|---|---|---|---|---|---|---|---|---|---|
| Condition | Mostly Clear | Mostly Cloudy | Rain | Rain | Mostly Clear | Drizzle | Rain | Mostly Clear | Partly Cloudy |
| High / Low | 93°/72° | 85°/65° | 80°/68° | 83°/67° | 83°/60° | 85°/67° | 82°/66° | 79°/60° | 82°/60° |
| Precip | 0% | 0% | 88% | 54% | 0% | 60% | 72% | 0% | 0% |
| Wind | 12 mphgust 24 | 6 mphgust 12 | 10 mphgust 20 | 10 mphgust 20 | 4 mphgust 11 | 9 mphgust 22 | 8 mphgust 22 | 8 mphgust 16 | 4 mphgust 9 |
| Pressure | 29.90" stable | 30.02" rising | 29.85" falling | 29.80" falling | 29.99" rising | 29.84" falling | 29.83" stable | 29.99" rising | 30.07" rising |
| UV Index | 9 | 6 | 5 | 7 | 8 | 6 | 6 | 8 | 6 |
| Sunrise | 5:48 AM | 5:48 AM | 5:49 AM | 5:50 AM | 5:51 AM | 5:52 AM | 5:52 AM | 5:53 AM | 5:54 AM |
| Sunset | 8:32 PM | 8:32 PM | 8:31 PM | 8:30 PM | 8:30 PM | 8:29 PM | 8:28 PM | 8:27 PM | 8:26 PM |
| Bite Rating | 3/5NEW | 2/5waxing crescent | 2/5waxing crescent | 2/5waxing crescent | 3/5waxing crescent | 2/5first quarter | 2/5first quarter | 3/5first quarter | 2/5waxing gibbous |
Today Read
Blue Marsh LakeWind read
Calm
6 mph avg
Water read
75°
Warm-water bite
Air range
72° / 93°
today
Precip
0%
low concern
Today's forecast for Blue Marsh Lake has calm wind, 72F to 93F air temperatures, 0% chance of precipitation, and 75F water.
Fishing Forecast
NEW
3/5
Major
2:53 PM - 5:23 PM
Minor
7:49 AM - 9:19 AM
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July 12, 2026
Fish Species
16Water Temperature History
Current
77°
Jul 19
Low
37°
Feb 22
Average
62°
Last 12 Months
Warmest avg: August (80°F)
Coolest avg: January (43°F)
Rapid warming: May → June (+11°F)
Sharpest cooling: October → November (-13°F)
Weather Forecast
Wind speed, gusts, and pressure trends for trip timing.
7 day view
Hourly Wind Forecast
Swipe days or tap points
16
12am - 11pm
Wind SpeedWind Gust
Tap pointsPeak Wind
12 mph
2pm
Peak Gust
24 mph
highest gust
Pressure
29.93 inHg
rising
Visibility
14 mi
53% clouds
Tap chart for details, swipe left or right for different days.Tap chart for details • Swipe for different days
Daily Pressure Forecast
Pressure stability helps plan windows
Pressure
Tap for detailsTap chart points for pressure details
Nearby Lakes
Fishing Forecast
3/5NEW
Major2:53 PM - 5:23 PM
Minor7:49 AM - 9:19 AM
Water at 75°F -- warm-water species active.
Fish Species
16Nearby Lakes
Lake facts
About Blue Marsh Lake
Direct answers from the lake profile and latest available condition data. Verify access, regulations, weather alerts, and safety conditions with local authorities.
The latest available LakeMonster reading for Blue Marsh Lake, updated Jul 16, 2026, shows 75°F surface water temperature, clear, 5 mph wind. Conditions can vary across the lake and change quickly, so check local weather, access notices, and on-water observations before acting.
Blue Marsh Lake has 1,148 acres based on the latest lake profile available to LakeMonster.
Blue Marsh Lake is listed in Reading, Berks County, PA. Check the responsible local or state agency for current access rules, permits, closures, and boating restrictions.
LakeMonster lists Largemouth bass, Smallmouth bass, White crappie, Black crappie, Bluegill, Pumpkinseed, Yellow perch, Channel catfish, Muskellunge, Northern pike, Walleye, Striped bass, White bass, Gar, Yellow bullhead, Brown bullhead for Blue Marsh Lake. A species listing does not guarantee current activity; use current temperature, weather, recent reports, and local regulations when planning.