Upper Mystic Lake, Gate House Water Level
USGS gauge 01102505 · at Winchester, MA
Latest reading Oct 26, 6:00 PM · elevation
Upper Mystic Lake, Gate House is at 114.24 ft today. It has fallen 0.01 ft since yesterday and is down 0.11 ft over 7 days.
Water level chart
ft above sea levelReading
Upper Mystic Lake, Gate House fishing report & conditions
updated Oct 26, 6:49 PM ETLevel steady, light W wind — good fall fishing day (7/10), best window 7:19 AM–8:19 AM (moonset near sunrise).
Level steady, light N wind — good fall fishing day (6/10), best window 5:51 PM–6:51 PM (moonrise near sunset).
- Water temp—no water-temperature sensor on this water yet
- Air temphigh 53°F / low 42°FSunny
- WindLight W6–8 mph 6 AM–6 PM, gusts to 12
- Level114.24 ftLevel steady (−0.01 ft in 24 h)
Official Massachusetts fishing info: MassWildlife — Trout stocking report & Go Fish MA
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 7:10 AM · Sunset 5:45 PM
Major fishing times
- Moon underfoot11:50 AM–1:50 PM
Minor fishing times
- Moonset7:19 AM–8:19 AMSunrise
- Moonrise5:12 PM–6:12 PMSunset
Fishing times for the next 7 days
| TodayOct 26 | 7/10Good | Major 11:50 AM–1:50 PM Minor 7:19 AM–8:19 AM · 5:12 PM–6:12 PM Light wind 6–8 mph |
|---|---|---|
| TueOct 27 | 5/10Fair | Major 12:18 AM–2:18 AM · 12:48 PM–2:48 PM Minor 8:38 AM–9:38 AM · 5:51 PM–6:51 PM Light wind 4–8 mph |
| WedOct 28 | 3/10Poor | Major 1:19 AM–3:19 AM · 1:50 PM–3:50 PM Minor 9:57 AM–10:57 AM · 6:40 PM–7:40 PM Calm wind 2–4 mph |
| ThuOct 29 | 5/10Fair | Major 2:23 AM–4:23 AM · 2:55 PM–4:55 PM Minor 11:08 AM–12:08 PM · 7:42 PM–8:42 PM Light wind 6–10 mph |
| FriOct 30 | 4/10Fair | Major 3:27 AM–5:27 AM · 3:59 PM–5:59 PM Minor 12:07 PM–1:07 PM · 8:54 PM–9:54 PM Light wind 7–9 mph |
| SatOct 31 | 5/10Fair | Major 4:29 AM–6:29 AM · 4:59 PM–6:59 PM Minor 12:54 PM–1:54 PM · 10:11 PM–11:11 PM Light wind 4–6 mph |
| SunNov 1 | 5/10Fair | Major 4:27 AM–6:27 AM · 4:54 PM–6:54 PM Minor 12:30 PM–1:30 PM · 10:28 PM–11:28 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 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)
| 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 42.43, -71.15 (moon times from astronomical equations, Upper Mystic Lake, Gate House 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 7:12 AM · Sunset 5:44 PM
Major fishing times
- Moon overhead12:18 AM–2:18 AM
- Moon underfoot12:48 PM–2:48 PM
Minor fishing times
- Moonset8:38 AM–9:38 AM
- Moonrise5:51 PM–6:51 PMSunset
Fishing times for the next 7 days
| TodayOct 27 | 6/10Good | Major 12:18 AM–2:18 AM · 12:48 PM–2:48 PM Minor 8:38 AM–9:38 AM · 5:51 PM–6:51 PM Light wind 4–8 mph |
|---|---|---|
| WedOct 28 | 3/10Poor | Major 1:19 AM–3:19 AM · 1:50 PM–3:50 PM Minor 9:57 AM–10:57 AM · 6:40 PM–7:40 PM Calm wind 2–4 mph |
| ThuOct 29 | 5/10Fair | Major 2:23 AM–4:23 AM · 2:55 PM–4:55 PM Minor 11:08 AM–12:08 PM · 7:42 PM–8:42 PM Light wind 6–10 mph |
| FriOct 30 | 4/10Fair | Major 3:27 AM–5:27 AM · 3:59 PM–5:59 PM Minor 12:07 PM–1:07 PM · 8:54 PM–9:54 PM Light wind 7–9 mph |
| SatOct 31 | 5/10Fair | Major 4:29 AM–6:29 AM · 4:59 PM–6:59 PM Minor 12:54 PM–1:54 PM · 10:11 PM–11:11 PM Light wind 4–6 mph |
| SunNov 1 | 5/10Fair | Major 4:27 AM–6:27 AM · 4:54 PM–6:54 PM Minor 12:30 PM–1:30 PM · 10:28 PM–11:28 PM Light wind 2–6 mph |
| MonNov 2 | 4/10Fair | Major 5:20 AM–7:20 AM · 5:45 PM–7:45 PM Minor 12:59 PM–1:59 PM · 11:42 PM–12:42 AM Light wind 5–7 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)
| 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 42.43, -71.15 (moon times from astronomical equations, Upper Mystic Lake, Gate House local time).
Weather & wind at Upper Mystic Lake, Gate House
air temperature, not water3-day forecast
- Tonight42°Mostly ClearWind NW 6 to 9 mphRain 3%
- Tuesday53° / 30°SunnyWind N 3 to 8 mphRain 0%
- Wednesday58° / 41°SunnyWind W 3 mphRain 0%
NOAA National Weather Service forecast for 42.431, -71.148 (grid BOX), issued Oct 26, 3:01 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.
Last 10 days
| Date | Level (ft) | Change |
|---|---|---|
| Mon Oct 26 (today) | 114.25 | −0.01 |
| Sun Oct 25 | 114.25 | −0.01 |
| Sat Oct 24 | 114.27 | −0.01 |
| Fri Oct 23 | 114.28 | −0.02 |
| Thu Oct 22 | 114.30 | −0.02 |
| Wed Oct 21 | 114.32 | −0.02 |
| Tue Oct 20 | 114.34 | −0.02 |
| Mon Oct 19 | 114.36 | −0.01 |
Daily mean of all readings that day; today is the average so far.
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Nearby lakes & rivers
- Fresh Pond in Gate House3 mi · Lake · Cambridge15.95 ft24h −0.02 ft
- Merrimack River below Concord River at Lowell17 mi · River2,070 cfs56% of normal
- Merrimack River at Lawrence19 mi · River9.08 ftstage 9.08 ft
- Kingsbury Pond24 mi · Lake · Norfolk126.20 ft24h ±0.00 ft
- Long Pond43 mi · Lake · Parkhurst Drive near Lakeville53.34 ft24h −0.02 ft
- Ashumet Pond, Falmouth63 mi · Lake43.60 ft−0.83 ft vs normal
Nearby tides
Heading to the coast? The nearest NOAA tide station is Amelia Earhart Dam, Mystic River, MA, 4 mi away — see Amelia Earhart Dam, Mystic River, MA tide times on TideCharts USA.
About this data
- Gauge
- USGS 01102505 — Upper Mystic Lake, Gate House, At Winchester, Ma
- Location
- 42.4312, -71.1477 · Massachusetts
- Measures
- Reservoir water-surface elevation above datum
- Daily statistics
- Not available (approved daily values)
- Latest reading
- Oct 26, 6:00 PM local time (provisional)
- Page built
- Oct 26, 2026 6:49 PM ET
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.