Colorado Hatch Conditions for Late May
| Insects |
Color |
Dates |
Emergence |
Size |
Spinner Fall |
Illustrations
© The Flyfisher Group |
Caddisflies |
| Little Sister Sedge |
Green to Greenish Brown |
May 15 - Aug 30 |
Afternoon & Evening |
14-16 |
NA |
|
| Little Tan Short Horn Sedge |
Dark Brown to Yellow |
Mar 1 - Aug 30 |
Sporadic |
14-16 |
NA |
|
| Spotted Sedge |
Brownish Yellow |
May 15 - Sep 30 |
Sporadic |
10-12 |
NA |
|
Mayflies |
| Blue Winged Olive |
Light Olive Brown to Brown Olive |
Mar 1 - Nov 15 |
Clouds & warmest part of day |
16-18 |
Evening |
|
| Western Black Quill |
Purplish Black to Grayish Brown |
Apr 1 - Jun 30 |
Mid Morning |
14-12 |
Evening |
|
Midges |
| Black Midge |
Blackish to Black |
Apr 1 - Nov 15 |
All Day |
18-20 |
2-3 Hours |
|
| Chocolate Brown Midge |
Brown to Chocolate |
Feb 15 - Dec 15 |
All Day |
20-22 |
2-3 Hours |
|
| Micro Black Midge |
Blackish to Black |
Mar 1 - Nov 15 |
Morning |
22-26 |
2-3 Hours |
|
| Snow Midge |
Gray to Charcoal |
Jan 1 - Dec 31 |
Warmest part of day |
24-28 |
2-3 Hours |
|
Stoneflies |
| Salmon Fly |
Black to Reddish Brown |
May 15 - Jul 15 |
50-60° Water Late Morning on |
4-8 |
NA |
|
| Small Western |
Brownish |
May 15 - Jul 15 |
46-56° Water Temps |
14-18 |
NA |
|
Terrestrials |
| Beetle |
Brownish to Black |
May 1 - Nov 30 |
All Day |
10-18 |
NA |
|
| Black Ant |
Black |
May 1 - Nov 15 |
All Day |
20-24 |
NA |
|
| Grasshopper |
Green to Brownish Tan |
May 15 - Nov 15 |
All Day |
2-14 |
NA |
|
| Red Ant |
Red to Orangish |
May 1 - Oct 15 |
All Day |
18-22 |
NA |
|
Water Flow Graph for Waterton |
Current Flow:41cfs Measured:05/21/201300:15 |
| | Current Year |
| Date/Time | 05/17 00:15 |
| Discharge (CFS) | 76 |
| | Current Year |
| Date/Time | 05/17 03:15 |
| Discharge (CFS) | 76 |
| | Current Year |
| Date/Time | 05/17 06:15 |
| Discharge (CFS) | 76 |
| | Current Year |
| Date/Time | 05/17 09:15 |
| Discharge (CFS) | 76 |
| | Current Year |
| Date/Time | 05/17 12:15 |
| Discharge (CFS) | 76 |
| | Current Year |
| Date/Time | 05/17 15:15 |
| Discharge (CFS) | 76 |
| | Current Year |
| Date/Time | 05/17 18:15 |
| Discharge (CFS) | 73 |
| | Current Year |
| Date/Time | 05/17 21:15 |
| Discharge (CFS) | 73 |
| | Current Year |
| Date/Time | 05/18 00:15 |
| Discharge (CFS) | 73 |
| | Current Year |
| Date/Time | 05/18 03:15 |
| Discharge (CFS) | 73 |
| | Current Year |
| Date/Time | 05/18 06:15 |
| Discharge (CFS) | 73 |
| | Current Year |
| Date/Time | 05/18 09:15 |
| Discharge (CFS) | 73 |
| | Current Year |
| Date/Time | 05/18 12:15 |
| Discharge (CFS) | 82 |
| | Current Year |
| Date/Time | 05/18 15:15 |
| Discharge (CFS) | 45 |
| | Current Year |
| Date/Time | 05/18 18:15 |
| Discharge (CFS) | 45 |
| | Current Year |
| Date/Time | 05/18 21:15 |
| Discharge (CFS) | 41 |
| | Current Year |
| Date/Time | 05/19 00:15 |
| Discharge (CFS) | 41 |
| | Current Year |
| Date/Time | 05/19 03:15 |
| Discharge (CFS) | 41 |
| | Current Year |
| Date/Time | 05/19 06:15 |
| Discharge (CFS) | 41 |
| | Current Year |
| Date/Time | 05/19 09:15 |
| Discharge (CFS) | 41 |
| | Current Year |
| Date/Time | 05/19 12:15 |
| Discharge (CFS) | 39 |
| | Current Year |
| Date/Time | 05/19 15:15 |
| Discharge (CFS) | 37 |
| | Current Year |
| Date/Time | 05/19 18:15 |
| Discharge (CFS) | 37 |
| | Current Year |
| Date/Time | 05/19 21:15 |
| Discharge (CFS) | 37 |
| | Current Year |
| Date/Time | 05/20 00:15 |
| Discharge (CFS) | 37 |
| | Current Year |
| Date/Time | 05/20 03:15 |
| Discharge (CFS) | 37 |
| | Current Year |
| Date/Time | 05/20 06:15 |
| Discharge (CFS) | 37 |
| | Current Year |
| Date/Time | 05/20 09:15 |
| Discharge (CFS) | 37 |
| | Current Year |
| Date/Time | 05/20 12:15 |
| Discharge (CFS) | 37 |
| | Current Year |
| Date/Time | 05/20 15:15 |
| Discharge (CFS) | 35 |
| | Current Year |
| Date/Time | 05/20 18:15 |
| Discharge (CFS) | 43 |
| | Current Year |
| Date/Time | 05/20 21:15 |
| Discharge (CFS) | 41 |
| | Current Year |
| Date/Time | 05/21 00:15 |
| Discharge (CFS) | 41 |
| | 5 Year Average |
| Date/Time | 05/17 00:15 |
| Discharge (CFS) | 145.6 |
| | 5 Year Average |
| Date/Time | 05/17 03:15 |
| Discharge (CFS) | 145.6 |
| | 5 Year Average |
| Date/Time | 05/17 06:15 |
| Discharge (CFS) | 145.6 |
| | 5 Year Average |
| Date/Time | 05/17 09:15 |
| Discharge (CFS) | 126 |
| | 5 Year Average |
| Date/Time | 05/17 12:15 |
| Discharge (CFS) | 159.2 |
| | 5 Year Average |
| Date/Time | 05/17 15:15 |
| Discharge (CFS) | 162.6 |
| | 5 Year Average |
| Date/Time | 05/17 18:15 |
| Discharge (CFS) | 160.8 |
| | 5 Year Average |
| Date/Time | 05/17 21:15 |
| Discharge (CFS) | 156 |
| | 5 Year Average |
| Date/Time | 05/18 00:15 |
| Discharge (CFS) | 156.6 |
| | 5 Year Average |
| Date/Time | 05/18 03:15 |
| Discharge (CFS) | 156.4 |
| | 5 Year Average |
| Date/Time | 05/18 06:15 |
| Discharge (CFS) | 157.2 |
| | 5 Year Average |
| Date/Time | 05/18 09:15 |
| Discharge (CFS) | 156.6 |
| | 5 Year Average |
| Date/Time | 05/18 12:15 |
| Discharge (CFS) | 167.6 |
| | 5 Year Average |
| Date/Time | 05/18 15:15 |
| Discharge (CFS) | 157 |
| | 5 Year Average |
| Date/Time | 05/18 18:15 |
| Discharge (CFS) | 176 |
| | 5 Year Average |
| Date/Time | 05/18 21:15 |
| Discharge (CFS) | 176 |
| | 5 Year Average |
| Date/Time | 05/19 00:15 |
| Discharge (CFS) | 177.2 |
| | 5 Year Average |
| Date/Time | 05/19 03:15 |
| Discharge (CFS) | 176.6 |
| | 5 Year Average |
| Date/Time | 05/19 06:15 |
| Discharge (CFS) | 177 |
| | 5 Year Average |
| Date/Time | 05/19 09:15 |
| Discharge (CFS) | 178.2 |
| | 5 Year Average |
| Date/Time | 05/19 12:15 |
| Discharge (CFS) | 182 |
| | 5 Year Average |
| Date/Time | 05/19 15:15 |
| Discharge (CFS) | 179.8 |
| | 5 Year Average |
| Date/Time | 05/19 18:15 |
| Discharge (CFS) | 179.8 |
| | 5 Year Average |
| Date/Time | 05/19 21:15 |
| Discharge (CFS) | 177.8 |
| | 5 Year Average |
| Date/Time | 05/20 00:15 |
| Discharge (CFS) | 178.6 |
| | 5 Year Average |
| Date/Time | 05/20 03:15 |
| Discharge (CFS) | 178.2 |
| | 5 Year Average |
| Date/Time | 05/20 06:15 |
| Discharge (CFS) | 178.8 |
| | 5 Year Average |
| Date/Time | 05/20 09:15 |
| Discharge (CFS) | 178.8 |
| | 5 Year Average |
| Date/Time | 05/20 12:15 |
| Discharge (CFS) | 183.8 |
| | 5 Year Average |
| Date/Time | 05/20 15:15 |
| Discharge (CFS) | 177 |
| | 5 Year Average |
| Date/Time | 05/20 18:15 |
| Discharge (CFS) | 179.4 |
| | 5 Year Average |
| Date/Time | 05/20 21:15 |
| Discharge (CFS) | 179 |
| | 5 Year Average |
| Date/Time | 05/21 00:15 |
| Discharge (CFS) | 180.2 |
| | 5 Year Average |
| Date/Time | 05/21 03:15 |
| Discharge (CFS) | 213 |
| | 5 Year Average |
| Date/Time | 05/21 06:15 |
| Discharge (CFS) | 157.6 |
| | 5 Year Average |
| Date/Time | 05/21 09:15 |
| Discharge (CFS) | 174.5 |
| | 5 Year Average |
| Date/Time | 05/21 12:15 |
| Discharge (CFS) | 163.8 |
| | 5 Year Average |
| Date/Time | 05/21 15:15 |
| Discharge (CFS) | 163.6 |
| | 5 Year Average |
| Date/Time | 05/21 18:15 |
| Discharge (CFS) | 148 |
| | 5 Year Average |
| Date/Time | 05/21 21:15 |
| Discharge (CFS) | 166.2 |
| | 5 Year Average |
| Date/Time | 05/22 00:15 |
| Discharge (CFS) | 166.2 |
| | 5 Year Average |
| Date/Time | 05/22 03:15 |
| Discharge (CFS) | 166.2 |
| | 5 Year Average |
| Date/Time | 05/22 06:15 |
| Discharge (CFS) | 166.2 |
| | 5 Year Average |
| Date/Time | 05/22 09:15 |
| Discharge (CFS) | 166.8 |
| | 5 Year Average |
| Date/Time | 05/22 12:15 |
| Discharge (CFS) | 183.2 |
| | 5 Year Average |
| Date/Time | 05/22 15:15 |
| Discharge (CFS) | 213 |
| | 5 Year Average |
| Date/Time | 05/22 18:15 |
| Discharge (CFS) | 222.6 |
| | 5 Year Average |
| Date/Time | 05/22 21:15 |
| Discharge (CFS) | 224.2 |
| | 5 Year Average |
| Date/Time | 05/23 00:15 |
| Discharge (CFS) | 225.4 |
| | 5 Year Average |
| Date/Time | 05/23 03:15 |
| Discharge (CFS) | 224.8 |
| | 5 Year Average |
| Date/Time | 05/23 06:15 |
| Discharge (CFS) | 227.8 |
| | 5 Year Average |
| Date/Time | 05/23 09:15 |
| Discharge (CFS) | 227.2 |
| | 5 Year Average |
| Date/Time | 05/23 12:15 |
| Discharge (CFS) | 239.4 |
| | 5 Year Average |
| Date/Time | 05/23 15:15 |
| Discharge (CFS) | 242 |
| | 5 Year Average |
| Date/Time | 05/23 18:15 |
| Discharge (CFS) | 292.5 |
| | 5 Year Average |
| Date/Time | 05/23 21:15 |
| Discharge (CFS) | 290.5 |
Weather for Waterton |
Current: 43.9 °F Partly Cloudy
Wind: 0 mph NW
|
Current Condtions
Partly Cloudy
Temperature: 43.9 °F
Wind Speed: 0 mph NW
Gusts: 5 mph SSW
Rain Today: 0 "
Data by WeatherBug.com
Wednesday's Forecast

Partly cloudy with a 20 percent chance of thunderstorms. Highs in the mid 70s.
Data by WeatherBug.com
Archived Fishing Reports for Waterton