Snake River near Heise
River flow & level · USGS gauge 13037500 · Idaho · drains 5,752 sq mi
Latest reading Oct 26, 10:30 AM · streamflow
The Snake River at Heise is running 2,020 cfs, 66% of the median flow for October 26 (3,050 cfs, 116 years). Gage height is 2.04 ft, 6.0 ft below flood stage (8.0 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 (6.2 ft) is 4.2 ft above the latest reading, off this chartMinor (8.0 ft) is 6.0 ft above the latest reading, off this chartModerate (9.5 ft) is 7.5 ft above the latest reading, off this chartMajor (11.0 ft) is 9.0 ft above the latest reading, off this chart
Reading
Snake River near Heise fishing report & conditions
updated Oct 26, 12:50 PM ETFlow 66% of normal, flow steady, moderate SSE wind — good fall fishing day (7/10), best window 8:13 AM–9:13 AM (moonset near sunrise).
- Water temp—no water-temperature sensor on this water yet
- Air temphigh 60°F / low 34°FPatchy Fog then Mostly Sunny
- WindModerate SSE12–18 mph 6 AM–6 PM, gusts to 28
- Flow66% of normalFlow steady (+0% in 24 h)
Official Idaho fishing info: Idaho Fish and Game — Idaho Fishing Planner
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 7:55 AM · Sunset 6:25 PM
Major fishing times
- Moon overhead12:11 AM–2:11 AM
- Moon underfoot12:38 PM–2:38 PM
Minor fishing times
- Moonset8:13 AM–9:13 AMSunrise
- Moonrise5:54 PM–6:54 PMSunset
Fishing times for the next 7 days
| TodayOct 26 | 7/10Good | Major 12:11 AM–2:11 AM · 12:38 PM–2:38 PM Minor 8:13 AM–9:13 AM · 5:54 PM–6:54 PM Moderate wind 12–18 mph |
|---|---|---|
| TueOct 27 | 4/10Fair | Major 1:07 AM–3:07 AM · 1:37 PM–3:37 PM Minor 9:34 AM–10:34 AM · 6:33 PM–7:33 PM Breezy wind 7–28 mph |
| WedOct 28 | 3/10Poor | Major 2:08 AM–4:08 AM · 2:40 PM–4:40 PM Minor 10:53 AM–11:53 AM · 7:23 PM–8:23 PM Moderate wind 4–16 mph |
| ThuOct 29 | 5/10Fair | Major 3:12 AM–5:12 AM · 3:44 PM–5:44 PM Minor 12:03 PM–1:03 PM · 8:27 PM–9:27 PM Moderate wind 4–17 mph |
| FriOct 30 | 4/10Fair | Major 4:16 AM–6:16 AM · 4:48 PM–6:48 PM Minor 1:00 PM–2:00 PM · 9:40 PM–10:40 PM Moderate wind 5–17 mph |
| SatOct 31 | 5/10Fair | Major 5:18 AM–7:18 AM · 5:48 PM–7:48 PM Minor 1:45 PM–2:45 PM · 10:58 PM–11:58 PM Light wind 4–10 mph |
| SunNov 1 | 5/10Fair | Major 5:16 AM–7:16 AM · 5:42 PM–7:42 PM Minor 1:19 PM–2:19 PM · 11:15 PM–12:15 AM Light wind 6–13 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 43.61, -111.66 (moon times from astronomical equations, Snake River near Heise local time).
Weather & wind at Snake River near Heise
air temperature, not water3-day forecast
- Today60° / 34°Patchy Fog then Mostly SunnyWind SSE 13 to 18 mphRain 82%
- Tuesday48° / 30°Mostly CloudyWind SW 13 to 28 mphRain 11%
- Wednesday50° / 32°SunnyWind SSW 12 to 16 mphRain 1%
NOAA National Weather Service forecast for 43.612, -111.660 (grid PIH), issued Oct 26, 5:31 AM 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 HEII1- Action stage6.25 ft+4.2 ft from now
- Minor stage8 ft+6.0 ft from now
- Moderate stage9.5 ft+7.5 ft from now
- Major stage11 ft+9.0 ft from now
- Record crest11.26 ft1997
October 26 in history
116 years of flow records- Today2,020 cfs
- Same date last year2,040 cfs2025
- Median3,050 cfs
- Normal range2,670 cfs – 3,600 cfs25th–75th percentile
- Highest since 19118,690 cfs1984
- Lowest since 19111,410 cfs1978
Last 10 days
| Date | Mean flow (cfs) | Change |
|---|---|---|
| Mon Oct 26 (today) | 2,023 | -0% |
| Sun Oct 25 | 2,030 | -1% |
| Sat Oct 24 | 2,050 | -0% |
| Fri Oct 23 | 2,060 | -1% |
| Thu Oct 22 | 2,080 | -12% |
| Wed Oct 21 | 2,360 | -2% |
| Tue Oct 20 | 2,400 | -21% |
| Mon Oct 19 | 3,050 | -0% |
| Sun Oct 18 | 3,060 | -0% |
| Sat Oct 17 | 3,070 | -5% |
Daily mean of all readings that day; today is the average so far.
Nearby lakes & rivers
About this data
- Gauge
- USGS 13037500 — Snake River Nr Heise Id
- Location
- 43.6125, -111.6600 · Idaho
- Drainage area
- 5,752 sq mi
- Measures
- Streamflow (discharge), cubic feet per second
- Daily statistics
- 1911–2026 (approved daily values)
- Latest reading
- Oct 26, 10:30 AM local time (provisional)
- Page built
- Oct 26, 2026 12:50 PM ET
- Flood stages
- NWS gauge HEII1 — 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.