St. Louis River
River in Minnesota, read from 2 USGS gauges, draining about 3,430 square miles. Figures refresh every fifteen minutes.
Discharge
391
cfs · 26 min ago
Normal for today
1,200
cfs median, 118 yrs
Water temp
58
°F · 56 min ago
Gage height
2.58
ft
Gauges on this water
Reading by reach
Reading the number
On this date the gauge has averaged 1,200 cfs over 118 years of record, with the middle half of years falling between 866 and 2,030 cfs. Today is below that band: lower, clearer and, in summer, warmer water than a typical October day here.
Regional hatch calendar
What is likely hatching near St. Louis River
St. Louis River does not have its own verified chart yet. This calendar is combined from the verified charts on Bois Brule River (68 mi), Namekagon River (97 mi). Treat it as regional timing, and file a report if you see something different here.
| Insect | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Blue-Winged Olive | January: absent | February: absent | March: active | April: peak | May: active | June: active | July: absent | August: absent | September: peak | October: active | November: absent | December: absent |
| Brown Drake | January: absent | February: absent | March: absent | April: absent | May: absent | June: peak | July: absent | August: absent | September: absent | October: absent | November: absent | December: absent |
| Hendrickson | January: absent | February: absent | March: absent | April: peak | May: peak | June: absent | July: absent | August: absent | September: absent | October: absent | November: absent | December: absent |
| Hex | January: absent | February: absent | March: absent | April: absent | May: absent | June: peak | July: peak | August: absent | September: absent | October: absent | November: absent | December: absent |
| Isonychia | January: absent | February: absent | March: absent | April: absent | May: absent | June: active | July: peak | August: active | September: absent | October: absent | November: absent | December: absent |
| March Brown | January: absent | February: absent | March: absent | April: absent | May: active | June: peak | July: absent | August: absent | September: absent | October: absent | November: absent | December: absent |
| Sulphur | January: absent | February: absent | March: absent | April: absent | May: peak | June: active | July: absent | August: absent | September: absent | October: absent | November: absent | December: absent |
| Caddis | January: absent | February: absent | March: absent | April: absent | May: peak | June: peak | July: active | August: active | September: active | October: active | November: absent | December: absent |
| Terrestrials | January: absent | February: absent | March: absent | April: absent | May: absent | June: absent | July: active | August: peak | September: active | October: absent | November: absent | December: absent |
| Trico | January: absent | February: absent | March: absent | April: absent | May: absent | June: absent | July: peak | August: absent | September: absent | October: absent | November: absent | December: absent |
| White Fly | January: absent | February: absent | March: absent | April: absent | May: absent | June: absent | July: absent | August: peak | September: absent | October: absent | November: absent | December: absent |
Reports
From anglers on St. Louis River
No reports filed here yet. The first one becomes the page’s local knowledge, stamped with the flow at the time. File a report.