Measured · 5 gauges reporting · 3:24 PM EDT on September 28, 2026
The park and national-forest streams along the crest — Rapidan, Tye, Smith and the brook water off the ridge.
Blue Ridge water is running 46–66°F across 5 gauges reporting in the last 6 hours. 3 are in prime shape — Smith River at 46°F, Smith River at 51°F, Smith River at 59°F. 2 sit in the 64–70°F transitional band, where the fish are catchable early and should be left alone by mid-afternoon. Air peaks at 80°F on Thu, and water will follow it up by roughly half that — move to first light before it lands.
Every temperature behind the clock on this page is a measurement — USGS water temperature at a real gauge, taken within 6 hours of the reading's own hour. Hours ahead of the last measurement are projected from the hourly air forecast and are labelled as projected. That is also why the lists below are only as long as the gauge network is dense — a river with no gauge on it has nothing measured to report.
Data refreshed nightly, current-hour rendered live — this page carries 24 hours of measured water behind 3:24 PM EDT on September 28, 2026 and 48 ahead of it, and shows the hour you are reading it in.
The bands are the map's own: the same breaks BirdTrout paints water with, so a stream that is green here is green there.
under 64°F — trout are feeding
64–70°F — fish early, keep fights short
over 70°F, or under 40°F — leave it alone
Nothing in this band right now.
The bugs whose peak covers this month in Blue Ridge, with the water temperature each is active in. Peak only — a shoulder month is on the bug's own page.
Air peaks at 80°F on Thu, and water will follow it up by roughly half that — move to first light before it lands.
| Day | High | Low | Rain |
|---|---|---|---|
| Mon 2026-09-28 | 66°F | 51°F | 0.00″ |
| Tue 2026-09-29 | 64°F | 55°F | 0.07″ |
| Wed 2026-09-30 | 76°F | 51°F | 0.00″ |
| Thu 2026-10-01 | 80°F | 56°F | 0.00″ |
Air, not water. Water follows smoothed air with a sensitivity well below one — a spring creek barely feels a hot afternoon and a shallow freestone nearly tracks it — so this table is a direction, and the measurements above are the answer.
182 classified stream miles in Blue Ridge, by VDWR habitat class. This is the standing classification, not today's temperature — it is what the water is normally, which is the context the readings above sit in.
| Class | Miles |
|---|---|
| II | 81 |
| VI | 49 |
| III | 32 |
| V | 10 |
| VII | 5 |
| IV | 4 |
| I | 1 |
Rivers here with a full BirdTrout page — survey history, access, public land and regulations — whether or not a gauge is reporting on them this hour.