Umbagog Lake
Coos County, NH
MAYBE on Umbagog Lake — light winds and rising pressure after a passing system for this window. Watch a front passing through. Weather-only read (no on-water history calibrating this yet).
Tue · Oct 27, 4 AM → 8 AM (America/New_York)
The latest cached fishing-weather read for Umbagog Lake in Coos County, NH is MAYBE. Its highlighted window has passed, so use the 7-day forecast below for the next available window. The main factor in its favor was dry conditions across the window, while the main watch-out was a front passing through. Its cached forecast evidence included wind near 6 mph out of the south, gusting to 10 mph; surface pressure near 975 hPa on a rising trend; 0.00 inches of rain; and air temperature near 37 °F with clear dominant. Confidence in this cached read is low; it was generated October 26, 2026, 8:52 AM UTC, and reads refresh on a daily cadence. This is a weather-only read built from forecast weather; it does not yet use on-water reports, and confidence is capped until local water data or feedback exists.
Conditions at a glance
- Wind
- 6mph
S · gust 10
- Rain / Weather
- 0in
Clear
- Temp
- 37°F
3°C · hum 50%
- Pressure
- 28.79inHg
Rising
7-Day Fishing Forecast
One read per day — the bite call, the window, the weather behind it
- MAYBEMon · Oct 26Window passedA front passing through57° / 34°F6 mph · Sgust 260.00 in↓ -2.3 hPa
- MAYBETue · Oct 274 AM → 8 AMA front passing through41° / 28°F7 mph · NWgust 190.00 in↑ +8.1 hPa
- MAYBEWed · Oct 2812 PM → 4 PMA front passing through50° / 28°F4 mph · SWgust 70.00 in↓ -1.4 hPa
- MAYBEThu · Oct 299 AM → 1 PMA front passing through61° / 34°F3 mph · SWgust 320.00 in↓ -13.4 hPa
- SKIPFri · Oct 304 AM → 8 AMExtreme gusts55° / 41°F11 mph · SWgust 350.04 in↑ +5.1 hPa
- MAYBESat · Oct 314 AM → 8 AMA front passing through45° / 32°F6 mph · NWgust 230.01 in↑ +7.8 hPa
- MAYBESun · Nov 19 AM → 1 PMA front passing through54° / 32°F4 mph · SWgust 110.00 in↓ -7.5 hPa
Last 3 days
Recent context — what just happened
Weather-only read. Confidence is capped until local water data or feedback exists.
About Umbagog Lake
- Type
- Natural shallow lake
- Managing agency
- U.S. Fish and Wildlife Service (Umbagog National Wildlife Refuge), co-managed with the States of Maine and New Hampshire
- Dam
- Errol Dam (Androscoggin River)
Primary species: Brook trout, Landlocked salmon, White perch, Crappie, Northern pike.
Notable structure: Submerged stonewall at Potter Farm (marked by buoys), Harpers Meadow floating bog (Floating Island National Natural Landmark), North-end deep hole over 40 ft, Metallak Island, Molls Rock, Big/Bear/Blake Islands and numerous coves.
How Umbagog Lake fishes in different weather
How do cold fronts affect fishing on Umbagog Lake?
Cold fronts hit a shallow natural lake like Umbagog Lake hard because the whole water column reacts fast. With little depth to buffer it, water temperatures swing quickly and the post-front bluebird high pushes fish off the flats. They slide to the deepest water available, into the thickest weeds, or onto isolated hard spots and drop-offs. Recovery tracks how fast the shallows rebound. Adjust by targeting the lake's deeper holes, weed edges, and any subtle structure, slowing down, and fishing the more stable weather on either side of the front.
How much does wind matter on Umbagog Lake?
Wind is the single biggest daily variable on a shallow natural lake like Umbagog Lake. A breeze stacks plankton and baitfish on windward shorelines and flats and pulls active fish up to feed, so the wind-blown side is usually the place to start. Wind also stirs the shallows, adding color that can trigger fish — up to a point, since a hard blow can over-muddy a shallow lake or make it unsafe to fish. Calm, bright, slick days are the grind here, with fish scattered and neutral. Follow the wind, but respect it.
How does barometric pressure change fishing on Umbagog Lake?
Falling pressure ahead of a front is a strong feeding trigger on Umbagog Lake, and because the lake is shallow, fish respond quickly and often feed hard right before the weather turns. The downside is the reverse: the stable high pressure and bright calm behind a front are tough on shallow-water fish that have nowhere deep to retreat. Prioritize the falling-pressure window, and when a high settles in, slow down and target the deepest water, thickest weeds, and hard spots where fish feel most secure.
Where are the fish in summer on Umbagog Lake?
A shallow natural lake like Umbagog Lake is usually too shallow to hold a strong thermocline, so summer location comes down to vegetation, oxygen, and shade rather than a depth band. Fish spread across weed flats in low light and pull to the lake's deeper holes, channels, and vegetation edges through the midday heat. In the dog days, oxygen in the thickest shallows can dip. Fish the flats and weed lines early and late, slide to the deeper water and cleaner weed edges midday, and take advantage of night and low-light windows.
When is the best time of year to fish Umbagog Lake?
The season on Umbagog Lake follows water temperature, and shallow lakes warm and cool fast. Spring comes early here: the shallows heat quickly and fish move up to spawn and feed, often the year's most productive window. Summer scatters them across weeds and flats, best in low light and wind. Fall's cooling concentrates bait and fish for a strong feed. In winter, fish pull to the deepest water, and in colder climates the lake may switch to a hardwater season. Let water temperature, not the date, set your plan.
Nearby waters
- B Pond· Oxford County, ME
- Greenough Pond· Coos County, NH
- Fox Pond· Oxford County, ME
- Sweat Pond· Coos County, NH
- C Pond· Oxford County, ME
- North Pond· Oxford County, ME
Weather data by Open-Meteo — CC BY 4.0. Fishing Weather derives the fishing read.