Colorado River near Granby
4.0 mi- Level
- 1.0 ft
- Flow
- 22 cfs
Forecast peak 3.3 ft Sat 6 AM
Reading from Sat 4:40 AM · NWS gauge page
Appearance
Observed 5:35 AM MDT at KGNB
Clear and 32°0°.
Today: low 28°−2° (likely 28°−2° to 32°0°), high 51°11° (likely 48°9° to 55°13°).
Now 32°0°
Clear · Feels like 28°−2°
No precipitation expected in the next 2 hours.
From forecast models
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 5a | Clear | 29°−2° (likely 28°−2° to 33°1°) | 29°−2° | 0% | 2 mph3 km/h from ESE, gusts 2 mph3 km/h | 92% | 1% | 0 |
| Sat 6a | Clear | 29°−2° (likely 28°−2° to 33°1°) | 25°−4° | 5% | 3 mph5 km/h from ESE, gusts 3 mph4 km/h | 88% | 3% | 0 |
| Sat 7a | Sunny | 28°−2° (likely 28°−2° to 33°1°) | 23°−5° | 5% | 5 mph8 km/h from E, gusts 2 mph4 km/h | 92% | 8% | 0 |
| Sat 8a | Sunny | 28°−2° (likely 28°−2° to 38°3°) | 23°−5° | 5% | 5 mph8 km/h from E, gusts 6 mph9 km/h | 96% | 13% | 0 |
| Sat 9a | Partly sunny | 32°0° (likely 32°0° to 43°6°) | 26°−3° | 5% | 7 mph11 km/h from E, gusts 8 mph12 km/h | 89% | 23% | 0 |
| Sat 10a | Partly sunny | 39°4° (likely 39°4° to 48°9°) | 34°1° | 5% | 7 mph11 km/h from E, gusts 13 mph21 km/h | 70% | 35% | 1 |
| Sat 11a | Cloudy | 44°7° (likely 44°7° to 53°12°) | 39°4° | 5% | 9 mph14 km/h from ESE, gusts 24 mph38 km/h | 58% | 79% | 3 |
| Sat 12p | Partly sunny | 48°9° (likely 48°9° to 55°13°) | 43°6° | 10% | 10 mph16 km/h from ESE, gusts 23 mph37 km/h | 49% | 75% | 4 |
| Sat 1p | Cloudy | 50°10° (likely 48°9° to 55°13°) | 46°8° | 10% | 12 mph19 km/h from ESE, gusts 24 mph39 km/h | 44% | 82% | 4 |
| Sat 2p | Cloudy | 49°9° (likely 47°8° to 53°12°) | 44°7° | 10% | 13 mph21 km/h from SE, gusts 22 mph35 km/h | 44% | 86% | 3 |
| Sat 3p | Cloudy | 49°9° (likely 47°8° to 52°11°) | 44°7° | 20% | 14 mph23 km/h from SE, gusts 19 mph30 km/h | 44% | 96% | 2 |
| Sat 4p | Cloudy | 49°9° (likely 45°7° to 49°9°) | 44°7° | 20% | 13 mph21 km/h from SE, gusts 18 mph30 km/h | 44% | 95% | 1 |
| Sat 5p | Cloudy | 48°9° (likely 42°6° to 48°9°) | 43°6° | 20% | 12 mph19 km/h from SE, gusts 14 mph22 km/h | 44% | 95% | 0 |
| Sat 6p | Cloudy | 44°7° (likely 40°4° to 44°7°) | 38°3° | 20% | 10 mph16 km/h from ESE, gusts 13 mph22 km/h | 49% | 96% | 0 |
| Sat 7p | Showers | 42°6° (likely 39°4° to 42°6°) | 36°2° | 20% | 9 mph14 km/h from ESE, gusts 9 mph15 km/h | 57% | 81% | 0 |
| Sat 8p | Showers | 40°4° (likely 37°3° to 41°5°) | 33°1° | 20% | 10 mph16 km/h from ESE, gusts 7 mph11 km/h | 62% | 62% | 0 |
| Sat 9p | Cloudy | 39°4° (likely 36°2° to 40°4°) | 33°1° | 10% | 9 mph14 km/h from ESE, gusts 5 mph8 km/h | 64% | 84% | 0 |
| Sat 10p | Mostly clear | 38°3° (likely 36°2° to 38°3°) | 32°0° | 10% | 8 mph13 km/h from E, gusts 5 mph7 km/h | 70% | 59% | 0 |
| Sat 11p | Cloudy | 37°3° (likely 34°1° to 38°3°) | 32°0° | 10% | 7 mph11 km/h from E, gusts 3 mph6 km/h | 72% | 75% | 0 |
| Sun 12a | Cloudy | 36°2° (likely 33°1° to 39°4°) | 31°−1° | 5% | 6 mph10 km/h from E, gusts 4 mph7 km/h | 75% | 72% | 0 |
| Sun 1a | Cloudy | 35°2° (likely 32°0° to 38°3°) | 31°−1° | 5% | 5 mph8 km/h from ESE, gusts 5 mph8 km/h | 78% | 77% | 0 |
| Sun 2a | Cloudy | 33°1° (likely 32°0° to 38°3°) | 30°−1° | 5% | 3 mph5 km/h from ESE, gusts 4 mph7 km/h | 85% | 83% | 0 |
| Sun 3a | Cloudy | 31°−1° (likely 31°−1° to 38°3°) | 31°−1° | 5% | 2 mph3 km/h from SE, gusts 5 mph8 km/h | 88% | 80% | 0 |
| Sun 4a | Cloudy | 32°0° (likely 31°−1° to 38°3°) | 29°−2° | 5% | 3 mph5 km/h from SE, gusts 4 mph6 km/h | 85% | 79% | 0 |
| Sun 5a | Cloudy | 31°−1° (likely 31°−1° to 37°3°) | 31°−1° | 5% | 2 mph3 km/h from SSE, gusts 3 mph6 km/h | 88% | 76% | 0 |
| Sun 6a | Cloudy | 30°−1° (likely 30°−1° to 37°3°) | 30°−1° | 5% | 2 mph3 km/h from SSE, gusts 2 mph4 km/h | 88% | 74% | 0 |
| Sun 7a | Cloudy | 29°−2° (likely 29°−2° to 37°3°) | 29°−2° | 5% | 2 mph3 km/h from ESE, gusts 3 mph4 km/h | 92% | 70% | 0 |
| Sun 8a | Cloudy | 29°−2° (likely 29°−2° to 39°4°) | 29°−2° | 5% | 1 mph2 km/h from SSE, gusts 3 mph5 km/h | 92% | 61% | 0 |
| Sun 9a | Cloudy | 32°0° (likely 32°0° to 42°6°) | 32°0° | 10% | 1 mph2 km/h from SSW, gusts 2 mph4 km/h | 92% | 61% | 1 |
| Sun 10a | Sunny | 39°4° (likely 39°4° to 45°7°) | 39°4° | 10% | 1 mph2 km/h from SSW, gusts 3 mph5 km/h | 76% | 42% | 2 |
| Sun 11a | Sunny | 45°7° (likely 45°7° to 50°10°) | 45°7° | 10% | 1 mph2 km/h from SSW, gusts 5 mph8 km/h | 60% | 43% | 3 |
| Sun 12p | Sunny | 50°10° (likely 50°10° to 54°12°) | 49°9° | 40%, 0.02 in0.5 mm | 3 mph5 km/h from WSW, gusts 7 mph11 km/h | 48% | 26% | 4 |
| Sun 1p | Showers | 54°12° (likely 47°8° to 56°13°) | 54°12° | 40%, 0.02 in0.5 mm | 5 mph8 km/h from W, gusts 15 mph25 km/h | 38% | 49% | 4 |
| Sun 2p | Showers | 53°12° (likely 50°10° to 57°14°) | 53°12° | 40%, 0.02 in0.5 mm | 6 mph10 km/h from W, gusts 10 mph17 km/h | 36% | 57% | 3 |
| Sun 3p | Showers | 53°12° (likely 51°11° to 57°14°) | 53°12° | 50%, 0.02 in0.5 mm | 6 mph10 km/h from WSW, gusts 16 mph26 km/h | 36% | 79% | 3 |
| Sun 4p | Showers | 53°12° (likely 50°10° to 54°12°) | 53°12° | 50%, 0.02 in0.5 mm | 5 mph8 km/h from WSW, gusts 9 mph15 km/h | 38% | 81% | 2 |
| Sun 5p | Showers | 50°10° (likely 48°9° to 51°11°) | 48°9° | 50%, 0.02 in0.5 mm | 5 mph8 km/h from WSW, gusts 8 mph13 km/h | 44% | 50% | 1 |
| Sun 6p | Showers | 46°8° (likely 43°6° to 47°8°) | 45°7° | 70%, 0.04 in1 mm | 3 mph5 km/h from WSW, gusts 8 mph13 km/h | 56% | 67% | 0 |
| Sun 7p | Showers | 44°7° (likely 40°4° to 44°7°) | 44°7° | 70%, 0.04 in1 mm | 2 mph3 km/h from SW, gusts 14 mph23 km/h | 62% | 69% | 0 |
| Sun 8p | Showers | 41°5° (likely 37°3° to 41°5°) | 39°4° | 70%, 0.04 in1 mm | 3 mph5 km/h from SW, gusts 7 mph11 km/h | 73% | 66% | 0 |
| Sun 9p | Snow | 38°3° (likely 37°3° to 40°4°) | 38°3° | 70%, 0.04 in1 mm | 2 mph3 km/h from WSW, gusts 8 mph12 km/h | 82% | 81% | 0 |
| Sun 10p | Cloudy | 36°2° (likely 36°2° to 39°4°) | 36°2° | 70%, 0.04 in1 mm | 2 mph3 km/h from WSW, gusts 5 mph8 km/h | 89% | 89% | 0 |
| Sun 11p | Cloudy | 34°1° (likely 34°1° to 39°4°) | 34°1° | 70%, 0.04 in1 mm | 1 mph2 km/h from SW, gusts 4 mph6 km/h | 96% | 93% | 0 |
| Mon 12a | Snow | 33°1° (likely 33°1° to 38°3°) | 33°1° | 70%, 0.02 in0.5 mm | 0 mph0 km/h, gusts 5 mph8 km/h | 96% | 97% | 0 |
| Mon 1a | Drizzle | 32°0° (likely 32°0° to 40°4°) | 32°0° | 70%, 0.02 in0.5 mm | 0 mph0 km/h, gusts 4 mph6 km/h | 96% | 96% | 0 |
| Mon 2a | Drizzle | 30°−1° (likely 30°−1° to 40°4°) | 30°−1° | 70%, 0.02 in0.5 mm | 0 mph0 km/h, gusts 4 mph6 km/h | 100% | 96% | 0 |
| Mon 3a | Snow | 28°−2° (likely 28°−2° to 40°4°) | 28°−2° | 70%, 0.02 in0.5 mm | 0 mph0 km/h, gusts 3 mph4 km/h | 100% | 99% | 0 |
| Mon 4a | Snow | 27°−3° (likely 27°−3° to 40°4°) | 27°−3° | 70%, 0.02 in0.5 mm | 0 mph0 km/h, gusts 4 mph6 km/h | 100% | 99% | 0 |
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
20% chance
Evening
6 PM–midnight
20% chance
Overnight
midnight–6 AM
Dry
Official NWS forecast
Today: A slight chance of rain showers after 3pm. Partly sunny. High near 51, with temperatures falling to around 48 in the afternoon. East southeast wind 3 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Tonight: Partly cloudy, with a low around 28. East southeast wind around 2 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
50% chance · 0.12 in3 mm
Evening
6 PM–midnight
70% chance · 0.24 in6.1 mm
Overnight
midnight–6 AM
70% chance · 0.2 in0.4 cm
Official NWS forecast
Day: A chance of rain showers after noon. Partly sunny, with a high near 54. South southwest wind 1 to 6 mph. Chance of precipitation is 50%.
Night: Rain showers likely before 9pm, then rain and snow showers likely between 9pm and midnight, then rain and snow showers likely. Mostly cloudy, with a low around 26. West southwest wind 0 to 3 mph. Chance of precipitation is 70%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
60% chance · 0.01 in0.3 mm
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of snow showers before 9am, then a slight chance of rain and snow showers between 9am and noon. Partly sunny, with a high near 51. Chance of precipitation is 20%.
Night: Mostly clear, with a low around 19.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 55.
Night: Mostly clear, with a low around 20.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 57.
Night: Mostly clear, with a low around 21.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 59.
Night: Partly cloudy, with a low around 25.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers after noon. Partly sunny, with a high near 58.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
30% chance · 0.1 in0.3 cm
Evening
6 PM–midnight
30% chance · 0.1 in0.4 cm
Overnight
midnight–6 AM
20% chance · 0.2 in0.6 cm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
20% chance · 0.3 in0.7 cm
Afternoon
noon–6 PM
30% chance · 0.2 in0.6 cm
Evening
6 PM–midnight
30% chance
Overnight
midnight–6 AM
30% chance · 0.02 in0.5 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
30% chance · 0.2 in0.5 cm
Afternoon
noon–6 PM
30% chance
Evening
6 PM–midnight
30% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Dry, high 51°, low 28°.
Dry, high 54°, low 26°, warming up.
Dry, high 51°, low 19°, cooling off.
Mostly dry, highs 41–59°.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (BOU) (opens in a new tab)
No meaningful changes from yesterday’s forecast.
Forecast peak 3.3 ft Sat 6 AM
Reading from Sat 4:40 AM · NWS gauge page
Forecast peak 3.4 ft Sat 6 AM
Reading from Sat 3:45 AM · NWS gauge page
Forecast peak 2.4 ft Sat 6 AM
Reading from Sat 3:45 AM · NWS gauge page
Forecast peak 0.7 ft Sat 5 AM
Reading from Sat 4 AM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
About 76% less heating than a typical week.
Heating degree days, base 65°F
47, 17 and 5°F are the test points heat pumps are rated at. About 19 hours are near freezing and damp, when outdoor units defrost more often.
Dry air outside (dew point 27°F). Indoor air will run dry too — a humidifier keeping indoor relative humidity in the 30–50% range is more comfortable and cuts static shocks, without going so high it fogs cold windows.
No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.
Today’s expected high is about typical for the date.
Granby weather by month: normals, records, snow and freeze dates
Sunrise 7:24 AM, sunset 6:11 PM.
Clear 5:57–6:56 AM; moon 96% lit but below the horizon.
Waxing gibbous
96% lit · growing
UniColorado Heating & Cooling installs heat pumps, furnaces and air conditioning across the Front Range. 12,000+ heat pumps installed since 2014.