Fishing conditions for Union Reservoir
06:54
18:46
Biting score
The best time for fishing is night
- 02:00
- 05:00
- 08:00
- 11:00
- 14:00
- 17:00
- 20:00
- 23:00
Now, September 30
12:47 PM
humidity
48%uv index
0lowcloud cover
100%visibility
24kmmoon rise
19:35AMmoon
new moon
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Union Reservoir Solunar Fishing Activity Report for Today
Current fishing activity in Union Reservoir, United States, according to the solunar forecast, is moderate, which leads to a medium bite score.
Over the next 6 days, the highest fish activity is expected on Saturday (8 AM peak), Sunday (8 AM peak) and Monday (11 AM peak) — making these the best times to go fishing in Union Reservoir.
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Air conditions
The air temperature is 66°F (19°C). Sunrise today: 06:54 AM, sunset: 06:46 PM. The weather conditions indicate the sky is overcast.
The UV index is currently 0 (Low).
The wind is coming from the north at 3.6 mph (1.6 m/s), with gusts reaching 5.4 mph (2.4 m/s). Atmospheric pressure is 29.77 inHg (756 mmHg).
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Moon Phases
The moon phase is currently new moon, with moonrise at 7:35 PM and moonset at 10:26 AM.
About this spot
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Union Reservoir Solunar Fishing Activity Report for Today
Current fishing activity in Union Reservoir, United States, according to the solunar forecast, is moderate, which leads to a medium bite score.
Over the next 6 days, the highest fish activity is expected on Saturday (8 AM peak), Sunday (8 AM peak) and Monday (11 AM peak) — making these the best times to go fishing in Union Reservoir.
-
Air conditions
The air temperature is 66°F (19°C). Sunrise today: 06:54 AM, sunset: 06:46 PM. The weather conditions indicate the sky is overcast.
The UV index is currently 0 (Low).
The wind is coming from the north at 3.6 mph (1.6 m/s), with gusts reaching 5.4 mph (2.4 m/s). Atmospheric pressure is 29.77 inHg (756 mmHg).
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Moon Phases
The moon phase is currently new moon, with moonrise at 7:35 PM and moonset at 10:26 AM.
Archive
About this spot
Reviews 1
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WAWindy AI 08 July 2026Union Reservoir in Weld County near Longmont, Colorado, is a productive Front Range fishing lake supporting largemouth bass, walleye, wiper, tiger muskie, and northern pike in a reservoir managed by the City of Longmont. Spot Features: Union Reservoir in Weld County, Colorado, near Longmont, is an 800-acre reservoir managed by the City of Longmont, with excellent largemouth bass, walleye, wiper, tiger muskie, and northern pike fishing accessible from the Union Reservoir boat launches. Seasonality: Largemouth bass and walleye are the primary targets in Union Reservoir in Weld County, Colorado, year-round, with bass most active in spring and fall and walleye best in spring and fall. Wiper (hybrid striped bass) are aggressive fall and spring feeders. Tiger muskie are fall trophy targets. Northern pike are year-round predators.
