Patapsco River near Elkridge
River flow & level · USGS gauge 01589035 · Maryland · drains 312 sq mi
Latest reading Oct 26, 6:00 PM · streamflow
The Patapsco River at Elkridge is running 64.9 cfs, 100% of the median flow for October 26 (65.0 cfs, 16 years). Gage height is 5.50 ft, 9.5 ft below flood stage (15.0 ft). Flow is about the same as 24 hours ago.
Streamflow
cubic feet per secondReadingNormal range for the date (25th–75th pct.)Median for the date
Gage height & flood stages
ft above gauge datumAction (10.0 ft) is 4.5 ft above the latest reading, off this chartMinor (15.0 ft) is 9.5 ft above the latest reading, off this chartModerate (19.0 ft) is 13.5 ft above the latest reading, off this chartMajor (21.0 ft) is 15.5 ft above the latest reading, off this chart
Reading
Patapsco River near Elkridge fishing report & conditions
updated Oct 26, 6:49 PM ETFlow 100% of normal, flow steady, light WNW wind — good fall fishing day (7/10), best window 7:34 AM–8:34 AM (moonset near sunrise).
Flow 100% of normal, flow steady, light NE wind — good fall fishing day (6/10), best window 6:25 PM–7:25 PM (moonrise near sunset).
- Water temp—no water-temperature sensor on this water yet
- Air temphigh 67°F / low 50°FSunny
- WindLight WNW4–6 mph 6 AM–6 PM, gusts to 10
- Flow100% of normalFlow steady (+0% in 24 h)
Official Maryland fishing report: Maryland DNR — Maryland fishing report (weekly)
Best fishing times today
Today is a good fishing day (solunar + local conditions)
7/10
Full moon · 99% lit · New moon Mon, Nov 9 · Sunrise 7:28 AM · Sunset 6:12 PM
Major fishing times
- Moon underfoot12:13 PM–2:13 PM
Minor fishing times
- Moonset7:34 AM–8:34 AMSunrise
- Moonrise5:44 PM–6:44 PMSunset
Fishing times for the next 7 days
| TodayOct 26 | 7/10Good | Major 12:13 PM–2:13 PM Minor 7:34 AM–8:34 AM · 5:44 PM–6:44 PM Light wind 4–6 mph |
|---|---|---|
| TueOct 27 | 5/10Fair | Major 12:41 AM–2:41 AM · 1:11 PM–3:11 PM Minor 8:51 AM–9:51 AM · 6:25 PM–7:25 PM Light wind 4–7 mph |
| WedOct 28 | 2/10Poor | Major 1:42 AM–3:42 AM · 2:14 PM–4:14 PM Minor 10:07 AM–11:07 AM · 7:17 PM–8:17 PM Calm wind 2–5 mph |
| ThuOct 29 | 4/10Fair | Major 2:46 AM–4:46 AM · 3:18 PM–5:18 PM Minor 11:18 AM–12:18 PM · 8:19 PM–9:19 PM Calm wind 0–6 mph |
| FriOct 30 | 3/10Poor | Major 3:50 AM–5:50 AM · 4:22 PM–6:22 PM Minor 12:17 PM–1:17 PM · 9:30 PM–10:30 PM Calm wind 4–5 mph |
| SatOct 31 | 5/10Fair | Major 4:53 AM–6:53 AM · 5:22 PM–7:22 PM Minor 1:06 PM–2:06 PM · 10:45 PM–11:45 PM Light wind 4–5 mph |
| SunNov 1 | 5/10Fair | Major 4:50 AM–6:50 AM · 5:18 PM–7:18 PM Minor 12:44 PM–1:44 PM · 10:59 PM–11:59 PM Light wind 2–6 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 river 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 · flow within ±15% in 24 h +1, rising over 25% −1 · water 55–75°F +1, below 45°F or above 85°F −1 (0 to 4 in total)
| 2 |
| Today | 7, rounded | 7/10 |
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 39.23, -76.72 (moon times from astronomical equations, Patapsco River near Elkridge local time).
Best fishing times today
Today is a good fishing day (solunar + local conditions)
6/10
Waning gibbous · 97% lit · New moon Mon, Nov 9 · Sunrise 7:29 AM · Sunset 6:11 PM
Major fishing times
- Moon overhead12:41 AM–2:41 AM
- Moon underfoot1:11 PM–3:11 PM
Minor fishing times
- Moonset8:51 AM–9:51 AM
- Moonrise6:25 PM–7:25 PMSunset
Fishing times for the next 7 days
| TodayOct 27 | 6/10Good | Major 12:41 AM–2:41 AM · 1:11 PM–3:11 PM Minor 8:51 AM–9:51 AM · 6:25 PM–7:25 PM Light wind 4–7 mph |
|---|---|---|
| WedOct 28 | 2/10Poor | Major 1:42 AM–3:42 AM · 2:14 PM–4:14 PM Minor 10:07 AM–11:07 AM · 7:17 PM–8:17 PM Calm wind 2–5 mph |
| ThuOct 29 | 4/10Fair | Major 2:46 AM–4:46 AM · 3:18 PM–5:18 PM Minor 11:18 AM–12:18 PM · 8:19 PM–9:19 PM Calm wind 0–6 mph |
| FriOct 30 | 3/10Poor | Major 3:50 AM–5:50 AM · 4:22 PM–6:22 PM Minor 12:17 PM–1:17 PM · 9:30 PM–10:30 PM Calm wind 4–5 mph |
| SatOct 31 | 5/10Fair | Major 4:53 AM–6:53 AM · 5:22 PM–7:22 PM Minor 1:06 PM–2:06 PM · 10:45 PM–11:45 PM Light wind 4–5 mph |
| SunNov 1 | 5/10Fair | Major 4:50 AM–6:50 AM · 5:18 PM–7:18 PM Minor 12:44 PM–1:44 PM · 10:59 PM–11:59 PM Light wind 2–6 mph |
| MonNov 2 | 4/10Fair | Major 5:43 AM–7:43 AM · 6:08 PM–8:08 PM Minor 1:16 PM–2:16 PM Light wind 4–7 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 river 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 · flow within ±15% in 24 h +1, rising over 25% −1 · water 55–75°F +1, below 45°F or above 85°F −1 (0 to 4 in total)
| 2 |
| 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 39.23, -76.72 (moon times from astronomical equations, Patapsco River near Elkridge local time).
Weather & wind at Patapsco River near Elkridge
air temperature, not water3-day forecast
- Tonight50°Mostly ClearWind NW 7 mphRain 1%
- Tuesday67° / 48°SunnyWind NE 7 mphRain 2%
- Wednesday67° / 51°Mostly SunnyWind E 5 mphRain 1%
NOAA National Weather Service forecast for 39.227, -76.723 (grid LWX), issued Oct 26, 4:52 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.
Flood stages
NOAA NWS gauge ERDM2- Action stage10 ft+4.5 ft from now
- Minor stage15 ft+9.5 ft from now
- Moderate stage19 ft+13.5 ft from now
- Major stage21 ft+15.5 ft from now
- Record crest24.76 ft2018
October 26 in history
16 years of flow records- Today64.9 cfs
- Same date last year54.4 cfs2025
- Median65.0 cfs
- Normal range58.0 cfs – 86.0 cfs25th–75th percentile
- Highest since 2011560 cfs2022
- Lowest since 201140.9 cfs2024
Last 10 days
| Date | Mean flow (cfs) | Change |
|---|---|---|
| Mon Oct 26 (today) | 64.0 | -1% |
| Sun Oct 25 | 64.5 | -1% |
| Sat Oct 24 | 65.0 | -1% |
| Fri Oct 23 | 65.9 | -3% |
| Thu Oct 22 | 68.0 | -4% |
| Wed Oct 21 | 70.7 | -5% |
| Tue Oct 20 | 74.2 | -5% |
| Mon Oct 19 | 78.2 | -15% |
| Sun Oct 18 | 91.5 | -31% |
| Sat Oct 17 | 132 | +22% |
Daily mean of all readings that day; today is the average so far.
Nearby lakes & rivers
- Patapsco River near Catonsville3 mi · River59.4 cfs97% of normal
- Patuxent River near Bowie19 mi · River133 cfs79% of normal
- Lake Serene26 mi · Lake · Edgewood52.89 ft24h ±0.00 ft
- Little Deer Creek Reservoir30 mi · Lake · Shawsville513.11 ft24h −0.01 ft
- Monocacy River at Jug Bridge near Frederick36 mi · River160 cfs71% of normal
- Monocacy River near Dickerson38 mi · River207 cfsstage 1.35 ft
Tidal water nearby
This gauge is 8 mi from NOAA tide station Fort McHenry Marsh, MD. Where the river is tidal, its level rises and falls twice a day with the tide as well as with the flow shown here — see Fort McHenry Marsh, MD tide times on TideCharts USA.
About this data
- Gauge
- USGS 01589035 — Patapsco River Near Elkridge, Md
- Location
- 39.2273, -76.7230 · Maryland
- Drainage area
- 312 sq mi
- Measures
- Streamflow (discharge), cubic feet per second
- Daily statistics
- 2011–2025 (approved daily values)
- Latest reading
- Oct 26, 6:00 PM local time (provisional)
- Page built
- Oct 26, 2026 6:49 PM ET
- Flood stages
- NWS gauge ERDM2 — National Water Prediction Service
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.