Arrowhead Reservoir, CO Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Arrowhead Reservoir Weather Forecast
| REST OF TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
| Patchy Fog | Patchy Fog | Mostly Clear | Mostly Sunny | Mostly Clear | Clear | Clear | Mostly Sunny | Partly Cloudy | Partly Cloudy | Mostly Clear | Sunny |
| Lo: 47°FLo: 8°C | Hi: 79°FHi: 26°C | Lo: 49°FLo: 9°C | Hi: 85°FHi: 29°C | Lo: 46°FLo: 8°C | Hi: 80°FHi: 27°C Lo: 51°FLo: 11°C | Hi: 80°FHi: 27°C Lo: 51°FLo: 11°C | Hi: 87°FHi: 31°C | Hi: 87°FHi: 31°C Lo: 57°FLo: 14°C | Hi: 87°FHi: 31°C Lo: 57°FLo: 14°C | Lo: 53°FLo: 12°C | Hi: 83°FHi: 28°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1249 AM MDT Fri Oct 02 2026 

Arrowhead Reservoir Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Arrowhead Reservoir Weather Map
Arrowhead Reservoir Quick Facts
Arrowhead Reservoir Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1149 PM MDT Thu Oct 1 2026
Key Messages
- Dry and unseasonably warm weather returns for the majority of the week ahead. Record/near record warmth next Monday.
- A few showers expected Tuesday as a weak disturbance moves across.
Discussion
/Through Thursday/... Issued at 1100 PM MDT Thu Oct 1 2026
It was a pleasant day across northeastern Colorado today. Sunshine returned and the urban corridor only saw highs in the upper 60s to near 70. Tonight`s temperatures will feel like fall as lows in the 40s are expected in the plains with ...
Weather World