Grass River at Chase Mills
River flow & level · USGS gauge 04265432 · New York · drains 598 sq mi
Latest reading Oct 26, 5:00 PM · streamflow
The Grass River at Chase Mills is running 323 cfs, 45% of the median flow for October 26 (710 cfs, 23 years). Gage height is 4.62 ft, 2.4 ft below action stage (7.0 ft). Flow is down 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 (7.0 ft) is 2.4 ft above the latest reading, off this chart
Reading
Grass River at Chase Mills fishing report & conditions
updated Oct 26, 6:49 PM ETFlow 45% of normal, flow steady, light W wind — good fall fishing day (7/10), best window 7:42 AM–8:42 AM (moonset near sunrise).
Flow 45% of normal, flow steady, calm wind — fair fall fishing day (5/10), best window 5:57 PM–6:57 PM (moonrise near sunset).
- Water temp—no water-temperature sensor on this water yet
- Air temphigh 45°F / low 27°FSunny
- WindLight W4–7 mph 6 AM–6 PM, gusts to 14
- Flow45% of normalFlow steady (-6% in 24 h)
Official New York fishing report: NYSDEC — Freshwater fishing & regional fishing hotlines
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 5:57 PM
Major fishing times
- Moon underfoot12:06 PM–2:06 PM
Minor fishing times
- Moonset7:42 AM–8:42 AMSunrise
- Moonrise5:20 PM–6:20 PMSunset
Fishing times for the next 7 days
| TodayOct 26 | 7/10Good | Major 12:06 PM–2:06 PM Minor 7:42 AM–8:42 AM · 5:20 PM–6:20 PM Light wind 4–7 mph |
|---|---|---|
| TueOct 27 | 4/10Fair | Major 12:35 AM–2:35 AM · 1:04 PM–3:04 PM Minor 9:04 AM–10:04 AM · 5:57 PM–6:57 PM Calm wind 0–4 mph |
| WedOct 28 | 3/10Poor | Major 1:35 AM–3:35 AM · 2:07 PM–4:07 PM Minor 10:24 AM–11:24 AM · 6:45 PM–7:45 PM Calm wind 0–1 mph |
| ThuOct 29 | 5/10Fair | Major 2:39 AM–4:39 AM · 3:11 PM–5:11 PM Minor 11:36 AM–12:36 PM · 7:47 PM–8:47 PM Moderate wind 6–13 mph |
| FriOct 30 | 4/10Fair | Major 3:44 AM–5:44 AM · 4:15 PM–6:15 PM Minor 12:35 PM–1:35 PM · 9:00 PM–10:00 PM Light wind 4–8 mph |
| SatOct 31 | 4/10Fair | Major 4:46 AM–6:46 AM · 5:15 PM–7:15 PM Minor 1:19 PM–2:19 PM · 10:19 PM–11:19 PM Calm wind 1–2 mph |
| SunNov 1 | 4/10Fair | Major 4:44 AM–6:44 AM · 5:11 PM–7:11 PM Minor 12:53 PM–1:53 PM · 10:38 PM–11:38 PM Calm wind 1–4 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 44.85, -75.08 (moon times from astronomical equations, Grass River at Chase Mills 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 7:32 AM · Sunset 5:55 PM
Major fishing times
- Moon overhead12:35 AM–2:35 AM
- Moon underfoot1:04 PM–3:04 PM
Minor fishing times
- Moonset9:04 AM–10:04 AM
- Moonrise5:57 PM–6:57 PMSunset
Fishing times for the next 7 days
| TodayOct 27 | 5/10Fair | Major 12:35 AM–2:35 AM · 1:04 PM–3:04 PM Minor 9:04 AM–10:04 AM · 5:57 PM–6:57 PM Calm wind 0–4 mph |
|---|---|---|
| WedOct 28 | 3/10Poor | Major 1:35 AM–3:35 AM · 2:07 PM–4:07 PM Minor 10:24 AM–11:24 AM · 6:45 PM–7:45 PM Calm wind 0–1 mph |
| ThuOct 29 | 5/10Fair | Major 2:39 AM–4:39 AM · 3:11 PM–5:11 PM Minor 11:36 AM–12:36 PM · 7:47 PM–8:47 PM Moderate wind 6–13 mph |
| FriOct 30 | 4/10Fair | Major 3:44 AM–5:44 AM · 4:15 PM–6:15 PM Minor 12:35 PM–1:35 PM · 9:00 PM–10:00 PM Light wind 4–8 mph |
| SatOct 31 | 4/10Fair | Major 4:46 AM–6:46 AM · 5:15 PM–7:15 PM Minor 1:19 PM–2:19 PM · 10:19 PM–11:19 PM Calm wind 1–2 mph |
| SunNov 1 | 4/10Fair | Major 4:44 AM–6:44 AM · 5:11 PM–7:11 PM Minor 12:53 PM–1:53 PM · 10:38 PM–11:38 PM Calm wind 1–4 mph |
| MonNov 2 | 3/10Poor | Major 5:37 AM–7:37 AM · 6:01 PM–8:01 PM Minor 1:20 PM–2:20 PM · 11:54 PM–12:54 AM Calm wind 2–5 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) (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)
| 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 44.85, -75.08 (moon times from astronomical equations, Grass River at Chase Mills local time).
Weather & wind at Grass River at Chase Mills
air temperature, not water3-day forecast
- Tonight27°Mostly ClearWind N 3 to 8 mphRain 1%
- Tuesday45° / 23°SunnyWind N 3 mphRain 0%
- Wednesday53° / 41°Mostly SunnyWind SE 1 mphRain 0%
NOAA National Weather Service forecast for 44.847, -75.078 (grid BTV), issued Oct 26, 2:35 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 CHAN6- Action stage7 ft+2.4 ft from now
- Record crest8.48 ft2024
October 26 in history
23 years of flow records- Today323 cfs
- Same date last year326 cfs2025
- Median710 cfs
- Normal range374 cfs – 1,450 cfs25th–75th percentile
- Highest since 20043,850 cfs2006
- Lowest since 2004203 cfs2019
Last 10 days
| Date | Mean flow (cfs) | Change |
|---|---|---|
| Mon Oct 26 (today) | 327 | -6% |
| Sun Oct 25 | 347 | -9% |
| Sat Oct 24 | 383 | -12% |
| Fri Oct 23 | 436 | -16% |
| Thu Oct 22 | 520 | -18% |
| Wed Oct 21 | 636 | -18% |
| Tue Oct 20 | 774 | -20% |
| Mon Oct 19 | 964 | -21% |
| Sun Oct 18 | 1,220 | -10% |
| Sat Oct 17 | 1,360 | +7% |
Daily mean of all readings that day; today is the average so far.
Nearby lakes & rivers
- Raquette River at Raymondville5 mi · River1,010 cfs65% of normal
- St. Regis River at Brasher Center15 mi · River493 cfs66% of normal
- Oswegatchie River near Heuvelton23 mi · River1,070 cfs101% of normal
- Raquette River at South Colton25 mi · River1,790 cfs133% of normal
- Raquette River at Piercefield49 mi · River751 cfs100% of normal
- Stillwater Reservoir66 mi · Lake · Beaver River1,666.77 ft−2.21 ft vs normal
About this data
- Gauge
- USGS 04265432 — Grass River At Chase Mills Ny
- Location
- 44.8465, -75.0784 · New York
- Drainage area
- 598 sq mi
- Measures
- Streamflow (discharge), cubic feet per second
- Daily statistics
- 2004–2026 (approved daily values)
- Latest reading
- Oct 26, 5:00 PM local time (provisional)
- Page built
- Oct 26, 2026 6:49 PM ET
- Flood stages
- NWS gauge CHAN6 — 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.