Susquehanna River at Harrisburg
River flow & level · USGS gauge 01570500 · Pennsylvania · drains 24,100 sq mi
Latest reading Oct 26, 12:00 PM · streamflow
The Susquehanna River at Harrisburg is running 11,900 cfs, 114% of the median flow for October 26 (10,400 cfs, 136 years). Gage height is 3.73 ft, 13.3 ft below flood stage (17.0 ft). Flow is up 6% from 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 (11.0 ft) is 7.3 ft above the latest reading, off this chartMinor (17.0 ft) is 13.3 ft above the latest reading, off this chartModerate (20.0 ft) is 16.3 ft above the latest reading, off this chartMajor (23.0 ft) is 19.3 ft above the latest reading, off this chart
Reading
Susquehanna River at Harrisburg fishing report & conditions
updated Oct 26, 12:50 PM ETWater 55°F, flow 114% of normal, flow steady, calm wind — good fall fishing day (7/10), best window 7:37 AM–8:37 AM (moonset near sunrise).
- Water temp55°Fmeasured Oct 26, 12:30 PM · this gauge
- Air temphigh 70°F / low 46°FSunny
- WindCalm0–5 mph 6 AM–6 PM, gusts to 10
- Flow114% of normalFlow steady (+6% 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)
7/10
Full moon · 99% lit · New moon Mon, Nov 9 · Sunrise 7:30 AM · Sunset 6:11 PM
Major fishing times
- Moon underfoot12:14 PM–2:14 PM
Minor fishing times
- Moonset7:37 AM–8:37 AMSunrise
- Moonrise5:42 PM–6:42 PMSunset
Fishing times for the next 7 days
| TodayOct 26 | 7/10Good | Major 12:14 PM–2:14 PM Minor 7:37 AM–8:37 AM · 5:42 PM–6:42 PM Calm wind 0–5 mph |
|---|---|---|
| TueOct 27 | 4/10Fair | Major 12:42 AM–2:42 AM · 1:12 PM–3:12 PM Minor 8:55 AM–9:55 AM · 6:22 PM–7:22 PM Calm wind 1–4 mph |
| WedOct 28 | 2/10Poor | Major 1:43 AM–3:43 AM · 2:14 PM–4:14 PM Minor 10:12 AM–11:12 AM · 7:13 PM–8:13 PM Calm wind 1–4 mph |
| ThuOct 29 | 4/10Fair | Major 2:47 AM–4:47 AM · 3:19 PM–5:19 PM Minor 11:23 AM–12:23 PM · 8:16 PM–9:16 PM Calm wind 1–5 mph |
| FriOct 30 | 3/10Poor | Major 3:51 AM–5:51 AM · 4:23 PM–6:23 PM Minor 12:22 PM–1:22 PM · 9:27 PM–10:27 PM Calm wind 1–5 mph |
| SatOct 31 | 4/10Fair | Major 4:53 AM–6:53 AM · 5:23 PM–7:23 PM Minor 1:10 PM–2:10 PM · 10:42 PM–11:42 PM Calm wind 1–2 mph |
| SunNov 1 | 4/10Fair | Major 4:51 AM–6:51 AM · 5:18 PM–7:18 PM Minor 12:48 PM–1:48 PM · 10:57 PM–11:57 PM Calm wind 1–5 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; water temperature measured at this gauge. 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 40.25, -76.89 (moon times from astronomical equations, Susquehanna River at Harrisburg local time).
Weather & wind at Susquehanna River at Harrisburg
air temperature, not water3-day forecast
- This Afternoon70° / 46°SunnyWind NW 5 mphRain 0%
- Tuesday66° / 43°SunnyWind N 3 mphRain 0%
- Wednesday67° / 48°Partly SunnyWind SE 3 mphRain 0%
NOAA National Weather Service forecast for 40.255, -76.886 (grid CTP), issued Oct 26, 12:06 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 HARP1- Action stage11 ft+7.3 ft from now
- Minor stage17 ft+13.3 ft from now
- Moderate stage20 ft+16.3 ft from now
- Major stage23 ft+19.3 ft from now
- Record crest33.27 ft1972
October 26 in history
136 years of flow records- Today11,900 cfs
- Same date last year6,110 cfs2025
- Median10,400 cfs
- Normal range6,150 cfs – 29,100 cfs25th–75th percentile
- Highest since 1891233,000 cfs1891
- Lowest since 18912,000 cfs1931
Last 10 days
| Date | Mean flow (cfs) | Change |
|---|---|---|
| Mon Oct 26 (today) | 11,916 | +5% |
| Sun Oct 25 | 11,300 | -4% |
| Sat Oct 24 | 11,800 | -6% |
| Fri Oct 23 | 12,600 | -5% |
| Thu Oct 22 | 13,300 | -6% |
| Wed Oct 21 | 14,100 | -3% |
| Tue Oct 20 | 14,500 | -6% |
| Mon Oct 19 | 15,500 | -6% |
| Sun Oct 18 | 16,500 | -6% |
| Sat Oct 17 | 17,500 | -11% |
Daily mean of all readings that day; today is the average so far.
Nearby lakes & rivers
- Conodoguinet Creek near Hogestown7 mi · River229 cfs113% of normal
- Swatara Creek at Middletown9 mi · River2.16 ftstage 2.16 ft
- Swatara Creek near Hershey12 mi · River280 cfs89% of normal
- Swatara Creek near Palmyra14 mi · River260 cfsstage 3.42 ft
- West Conewago Creek near Manchester15 mi · River109 cfs87% of normal
- Swatara Creek at Harper Tavern19 mi · River186 cfs108% of normal
About this data
- Gauge
- USGS 01570500 — Susquehanna River at Harrisburg, PA
- Location
- 40.2547, -76.8861 · Pennsylvania
- Drainage area
- 24,100 sq mi
- Measures
- Streamflow (discharge), cubic feet per second
- Daily statistics
- 1891–2026 (approved daily values)
- Latest reading
- Oct 26, 12:00 PM local time (provisional)
- Page built
- Oct 26, 2026 12:50 PM ET
- Flood stages
- NWS gauge HARP1 — 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.