Saint Vrain Creek below Longmont
3.1 mi- Level
- 10.1 ft
- Flow
- 109 cfs
Reading from Sat 7 AM · NWS gauge page
Appearance
Observed 7:55 AM MDT at KEIK
Sunny and 46°8°.
Today: low 38°3° (likely 38°3° to 47°8°), high 55°13° (likely 55°13° to 58°14°).
Now 46°8°
Sunny
No precipitation expected in the next 2 hours.
From forecast models
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 8a | Mostly cloudy | 45°7° (likely 45°7° to 49°9°) | 40°4° | 5% | 10 mph16 km/h from N, gusts 9 mph15 km/h | 70% | 61% | 0 |
| Sat 9a | Partly sunny | 49°9° (likely 47°8° to 51°11°) | 44°7° | 5% | 13 mph21 km/h from NNE, gusts 15 mph23 km/h | 63% | 48% | 0 |
| Sat 10a | Mostly sunny | 51°11° (likely 48°9° to 53°12°) | 51°11° | 5% | 13 mph21 km/h from NNE, gusts 16 mph26 km/h | 59% | 54% | 1 |
| Sat 11a | Sunny | 52°11° (likely 49°9° to 54°12°) | 52°11° | 5% | 12 mph19 km/h from NNE, gusts 14 mph22 km/h | 56% | 37% | 3 |
| Sat 12p | Mostly cloudy | 52°11° (likely 50°10° to 55°13°) | 52°11° | 10%, 0.01 in0.3 mm | 10 mph16 km/h from NE, gusts 14 mph22 km/h | 52% | 37% | 4 |
| Sat 1p | Mostly cloudy | 54°12° (likely 52°11° to 56°13°) | 54°12° | 10%, 0.01 in0.3 mm | 10 mph16 km/h from NE, gusts 13 mph21 km/h | 48% | 38% | 4 |
| Sat 2p | Mostly cloudy | 54°12° (likely 53°12° to 57°14°) | 54°12° | 10%, 0.01 in0.3 mm | 9 mph14 km/h from NE, gusts 12 mph19 km/h | 48% | 52% | 3 |
| Sat 3p | Cloudy | 54°12° (likely 53°12° to 58°14°) | 54°12° | 30%, 0.01 in0.3 mm | 9 mph14 km/h from NE, gusts 12 mph19 km/h | 48% | 92% | 2 |
| Sat 4p | Partly sunny | 54°12° (likely 52°11° to 58°14°) | 54°12° | 30%, 0.01 in0.3 mm | 8 mph13 km/h from ENE, gusts 10 mph16 km/h | 48% | 84% | 1 |
| Sat 5p | Cloudy | 53°12° (likely 50°10° to 56°13°) | 53°12° | 30%, 0.01 in0.3 mm | 7 mph11 km/h from ENE, gusts 12 mph19 km/h | 52% | 98% | 0 |
| Sat 6p | Cloudy | 51°11° (likely 48°9° to 54°12°) | 51°11° | 30%, 0.03 in0.8 mm | 7 mph11 km/h from E, gusts 12 mph19 km/h | 61% | 100% | 0 |
| Sat 7p | Cloudy | 48°9° (likely 45°7° to 52°11°) | 45°7° | 30%, 0.03 in0.8 mm | 6 mph10 km/h from SE, gusts 14 mph22 km/h | 68% | 98% | 0 |
| Sat 8p | Drizzle | 47°8° (likely 44°7° to 50°10°) | 45°7° | 30%, 0.03 in0.8 mm | 5 mph8 km/h from ESE, gusts 12 mph20 km/h | 74% | 100% | 0 |
| Sat 9p | Cloudy | 46°8° (likely 44°7° to 49°9°) | 44°7° | 20%, 0.03 in0.8 mm | 5 mph8 km/h from ESE, gusts 9 mph14 km/h | 79% | 98% | 0 |
| Sat 10p | Cloudy | 46°8° (likely 43°6° to 47°8°) | 45°7° | 20%, 0.03 in0.8 mm | 3 mph5 km/h from SE, gusts 7 mph12 km/h | 76% | 92% | 0 |
| Sat 11p | Cloudy | 45°7° (likely 42°6° to 47°8°) | 44°7° | 20%, 0.03 in0.8 mm | 3 mph5 km/h from ESE, gusts 8 mph14 km/h | 79% | 85% | 0 |
| Sun 12a | Cloudy | 44°7° (likely 41°5° to 46°8°) | 41°5° | 5% | 5 mph8 km/h from ESE, gusts 9 mph14 km/h | 82% | 82% | 0 |
| Sun 1a | Cloudy | 43°6° (likely 40°4° to 45°7°) | 40°4° | 5% | 5 mph8 km/h from ESE, gusts 8 mph12 km/h | 86% | 79% | 0 |
| Sun 2a | Cloudy | 43°6° (likely 40°4° to 44°7°) | 40°4° | 5% | 5 mph8 km/h from E, gusts 7 mph12 km/h | 86% | 79% | 0 |
| Sun 3a | Cloudy | 41°5° (likely 39°4° to 43°6°) | 38°3° | 5% | 5 mph8 km/h from E, gusts 8 mph13 km/h | 93% | 79% | 0 |
| Sun 4a | Cloudy | 41°5° (likely 39°4° to 43°6°) | 38°3° | 5% | 5 mph8 km/h from E, gusts 7 mph11 km/h | 93% | 76% | 0 |
| Sun 5a | Cloudy | 40°4° (likely 38°3° to 42°6°) | 38°3° | 5% | 3 mph5 km/h from E, gusts 6 mph10 km/h | 96% | 83% | 0 |
| Sun 6a | Cloudy | 39°4° (likely 37°3° to 41°5°) | 36°2° | 0% | 5 mph8 km/h from E, gusts 6 mph10 km/h | 100% | 86% | 0 |
| Sun 7a | Mostly sunny | 39°4° (likely 37°3° to 41°5°) | 37°3° | 0% | 3 mph5 km/h from E, gusts 7 mph11 km/h | 100% | 53% | 0 |
| Sun 8a | Cloudy | 39°4° (likely 38°3° to 42°6°) | 37°3° | 0% | 3 mph5 km/h from ENE, gusts 7 mph12 km/h | 100% | 83% | 0 |
| Sun 9a | Cloudy | 42°6° (likely 40°4° to 44°7°) | 39°4° | 5% | 5 mph8 km/h from ENE, gusts 7 mph11 km/h | 100% | 82% | 1 |
| Sun 10a | Cloudy | 46°8° (likely 42°6° to 46°8°) | 44°7° | 5% | 5 mph8 km/h from ENE, gusts 7 mph11 km/h | 89% | 85% | 2 |
| Sun 11a | Cloudy | 48°9° (likely 45°7° to 49°9°) | 47°8° | 5% | 3 mph5 km/h from NE, gusts 7 mph11 km/h | 83% | 89% | 3 |
| Sun 12p | Partly sunny | 51°11° (likely 48°9° to 53°12°) | 51°11° | 5% | 3 mph5 km/h from NE, gusts 7 mph11 km/h | 74% | 78% | 4 |
| Sun 1p | Sunny | 54°12° (likely 50°10° to 56°13°) | 54°12° | 5% | 3 mph5 km/h from NE, gusts 9 mph14 km/h | 66% | 37% | 5 |
| Sun 2p | Mostly cloudy | 56°13° (likely 52°11° to 58°14°) | 56°13° | 5% | 5 mph8 km/h from NNE, gusts 8 mph13 km/h | 62% | 62% | 5 |
| Sun 3p | Mostly cloudy | 56°13° (likely 53°12° to 60°16°) | 56°13° | 10% | 7 mph11 km/h from NNE, gusts 9 mph14 km/h | 62% | 49% | 4 |
| Sun 4p | Mostly cloudy | 57°14° (likely 53°12° to 60°16°) | 57°14° | 10% | 8 mph13 km/h from NNE, gusts 11 mph18 km/h | 59% | 41% | 3 |
| Sun 5p | Cloudy | 56°13° (likely 53°12° to 58°14°) | 56°13° | 10% | 9 mph14 km/h from NNE, gusts 15 mph24 km/h | 62% | 79% | 1 |
| Sun 6p | Cloudy | 54°12° (likely 50°10° to 56°13°) | 54°12° | 80%, 0.07 in1.8 mm | 9 mph14 km/h from NNE, gusts 18 mph29 km/h | 69% | 98% | 0 |
| Sun 7p | Cloudy | 52°11° (likely 48°9° to 54°12°) | 52°11° | 80%, 0.07 in1.8 mm | 9 mph14 km/h from N, gusts 22 mph36 km/h | 74% | 93% | 0 |
| Sun 8p | Cloudy | 50°10° (likely 46°8° to 52°11°) | 46°8° | 80%, 0.07 in1.8 mm | 9 mph14 km/h from N, gusts 22 mph36 km/h | 83% | 100% | 0 |
| Sun 9p | Cloudy | 48°9° (likely 45°7° to 51°11°) | 44°7° | 80%, 0.07 in1.8 mm | 9 mph14 km/h from N, gusts 16 mph25 km/h | 93% | 100% | 0 |
| Sun 10p | Cloudy | 47°8° (likely 45°7° to 50°10°) | 43°6° | 80%, 0.07 in1.8 mm | 8 mph13 km/h from N, gusts 19 mph31 km/h | 96% | 100% | 0 |
| Sun 11p | Showers | 46°8° (likely 45°7° to 50°10°) | 42°6° | 80%, 0.07 in1.8 mm | 7 mph11 km/h from N, gusts 22 mph35 km/h | 100% | 99% | 0 |
| Mon 12a | Showers | 46°8° (likely 44°7° to 49°9°) | 43°6° | 70%, 0.04 in1 mm | 6 mph10 km/h from N, gusts 20 mph32 km/h | 96% | 99% | 0 |
| Mon 1a | Drizzle | 45°7° (likely 45°7° to 49°9°) | 42°6° | 70%, 0.04 in1 mm | 6 mph10 km/h from N, gusts 17 mph28 km/h | 100% | 99% | 0 |
| Mon 2a | Drizzle | 45°7° (likely 44°7° to 48°9°) | 42°6° | 70%, 0.04 in1 mm | 6 mph10 km/h from N, gusts 20 mph32 km/h | 96% | 99% | 0 |
| Mon 3a | Drizzle | 44°7° (likely 44°7° to 48°9°) | 41°5° | 70%, 0.04 in1 mm | 6 mph10 km/h from N, gusts 13 mph21 km/h | 100% | 99% | 0 |
| Mon 4a | Drizzle | 43°6° (likely 43°6° to 48°9°) | 40°4° | 70%, 0.04 in1 mm | 5 mph8 km/h from N, gusts 18 mph28 km/h | 100% | 99% | 0 |
| Mon 5a | Drizzle | 42°6° (likely 42°6° to 48°9°) | 39°4° | 70%, 0.04 in1 mm | 5 mph8 km/h from N, gusts 15 mph25 km/h | 100% | 100% | 0 |
| Mon 6a | Showers | 42°6° (likely 42°6° to 48°9°) | 40°4° | 20%, 0.01 in0.3 mm | 3 mph5 km/h from N, gusts 12 mph19 km/h | 100% | 99% | 0 |
| Mon 7a | Showers | 42°6° (likely 42°6° to 48°9°) | 40°4° | 20%, 0.01 in0.3 mm | 3 mph5 km/h from NNE, gusts 8 mph12 km/h | 100% | 90% | 0 |
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
30% chance · 0.06 in1.5 mm
Evening
6 PM–midnight
30% chance · 0.18 in4.6 mm
Overnight
midnight–6 AM
Dry
Official NWS forecast
Today: A chance of rain showers after 3pm. Mostly cloudy. High near 55, with temperatures falling to around 53 in the afternoon. Northeast wind 7 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Tonight: A chance of rain showers before midnight. Mostly cloudy. Low around 38, with temperatures rising to around 40 overnight. East southeast wind 3 to 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
80% chance · 0.42 in11 mm
Overnight
midnight–6 AM
70% chance · 0.24 in6.1 mm
Official NWS forecast
Day: Partly sunny, with a high near 57. Northeast wind 3 to 9 mph.
Night: Rain showers. Cloudy, with a low around 41. North wind 5 to 9 mph. Chance of precipitation is 80%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
30% chance · 0.03 in0.6 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 rain showers before noon. Partly sunny, with a high near 59. Northeast wind around 5 mph. Chance of precipitation is 20%.
Night: Mostly clear, with a low around 35.
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 65.
Night: Mostly clear, with a low around 37.
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: Mostly sunny, with a high near 65.
Night: Partly cloudy, with a low around 36.
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: Mostly sunny, with a high near 66.
Night: Partly cloudy, with a low around 38.
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: Partly sunny, with a high near 65.
Night: Mostly cloudy, with a low around 39.
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
20% chance · 0.05 in1.1 mm
Overnight
midnight–6 AM
Dry
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
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
30% chance
Overnight
midnight–6 AM
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.
Morning
6 AM–noon
20% chance
Afternoon
noon–6 PM
20% chance
Evening
6 PM–midnight
Dry
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 55°, low 38°.
Dry, high 57°, low 41°.
Dry, high 59°, low 35°.
Mostly dry, highs 53–66°.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (BOU) (opens in a new tab)
No meaningful changes from yesterday’s forecast.
Reading from Sat 7 AM · NWS gauge page
Reading from Sat 7 AM · NWS gauge page
Reading from Sat 6:30 AM · NWS gauge page
Reading from Sat 6:30 AM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
About 75% 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 10 hours are near freezing and damp, when outdoor units defrost more often.
Dry air outside (dew point 32°F).
No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.
Today’s expected high is 7°4° colder than typical.
On average 9°5° warmer than normal (daily mean temperature).
Firestone weather by month: normals, records, snow and freeze dates
Sunrise 7:20 AM, sunset 6:07 PM.
Clouds most of the night (about 87% cover).
Waxing gibbous
97% lit · growing
UniColorado Heating & Cooling installs heat pumps, furnaces and air conditioning across the Front Range. 12,000+ heat pumps installed since 2014.