Saint Vrain Creek at Lyons
6.9 mi- Level
- 2.8 ft
Reading from Sat 4:15 AM · NWS gauge page
Appearance
Observed 5:55 AM MDT at KLMO
Clear and 47°8°, 10°6° colder than a typical Oct 24.
Today: low 37°3° (likely 37°3° to 43°6°), high 52°11° (likely 51°11° to 58°14°).
Now 47°8°
Clear
No precipitation expected in the next 2 hours.
From forecast models
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 6a | Clear | 49°9° (likely 45°7° to 49°9°) | 48°9° | 10% | 3 mph5 km/h from SE, gusts 7 mph12 km/h | 54% | 23% | 0 |
| Sat 7a | Mostly sunny | 47°8° (likely 45°7° to 47°8°) | 45°7° | 10% | 5 mph8 km/h from ESE, gusts 6 mph10 km/h | 58% | 39% | 0 |
| Sat 8a | Mostly cloudy | 47°8° (likely 45°7° to 48°9°) | 44°7° | 10% | 6 mph10 km/h from E, gusts 7 mph12 km/h | 60% | 58% | 0 |
| Sat 9a | Mostly sunny | 48°9° (likely 46°8° to 50°10°) | 44°7° | 10% | 8 mph13 km/h from ENE, gusts 6 mph10 km/h | 60% | 49% | 1 |
| Sat 10a | Sunny | 49°9° (likely 46°8° to 51°11°) | 46°8° | 10% | 8 mph13 km/h from ENE, gusts 9 mph15 km/h | 61% | 32% | 2 |
| Sat 11a | Cloudy | 49°9° (likely 46°8° to 52°11°) | 46°8° | 10% | 7 mph11 km/h from ENE, gusts 10 mph16 km/h | 61% | 66% | 3 |
| Sat 12p | Cloudy | 49°9° (likely 47°8° to 52°11°) | 46°8° | 20%, 0.01 in0.3 mm | 7 mph11 km/h from ENE, gusts 10 mph17 km/h | 63% | 84% | 4 |
| Sat 1p | Cloudy | 51°11° (likely 48°9° to 52°11°) | 51°11° | 20%, 0.01 in0.3 mm | 7 mph11 km/h from ENE, gusts 9 mph15 km/h | 56% | 86% | 4 |
| Sat 2p | Cloudy | 50°10° (likely 49°9° to 52°11°) | 48°9° | 20%, 0.01 in0.3 mm | 6 mph10 km/h from ENE, gusts 9 mph15 km/h | 56% | 84% | 4 |
| Sat 3p | Cloudy | 50°10° (likely 48°9° to 52°11°) | 48°9° | 30%, 0.01 in0.3 mm | 6 mph10 km/h from ENE, gusts 10 mph16 km/h | 56% | 92% | 4 |
| Sat 4p | Cloudy | 50°10° (likely 47°8° to 51°11°) | 48°9° | 30%, 0.01 in0.3 mm | 6 mph10 km/h from ENE, gusts 8 mph13 km/h | 56% | 95% | 2 |
| Sat 5p | Showers | 48°9° (likely 43°6° to 50°10°) | 45°7° | 30%, 0.01 in0.3 mm | 6 mph10 km/h from E, gusts 8 mph12 km/h | 63% | 94% | 1 |
| Sat 6p | Drizzle | 45°7° (likely 41°5° to 48°9°) | 43°6° | 40%, 0.02 in0.5 mm | 5 mph8 km/h from E, gusts 5 mph8 km/h | 68% | 100% | 0 |
| Sat 7p | Cloudy | 43°6° (likely 40°4° to 47°8°) | 41°5° | 40%, 0.02 in0.5 mm | 3 mph5 km/h from ESE, gusts 5 mph7 km/h | 73% | 96% | 0 |
| Sat 8p | Cloudy | 43°6° (likely 40°4° to 46°8°) | 43°6° | 40%, 0.02 in0.5 mm | 2 mph3 km/h from ESE, gusts 4 mph6 km/h | 73% | 89% | 0 |
| Sat 9p | Cloudy | 43°6° (likely 39°4° to 45°7°) | 43°6° | 20%, 0.02 in0.5 mm | 2 mph3 km/h from SSE, gusts 4 mph7 km/h | 76% | 89% | 0 |
| Sat 10p | Cloudy | 43°6° (likely 39°4° to 44°7°) | 43°6° | 20%, 0.02 in0.5 mm | 2 mph3 km/h from SSE, gusts 5 mph7 km/h | 76% | 89% | 0 |
| Sat 11p | Showers | 43°6° (likely 38°3° to 43°6°) | 43°6° | 20%, 0.02 in0.5 mm | 2 mph3 km/h from SSE, gusts 5 mph8 km/h | 76% | 93% | 0 |
| Sun 12a | Cloudy | 42°6° (likely 38°3° to 42°6°) | 42°6° | 10% | 2 mph3 km/h from SSE, gusts 5 mph8 km/h | 82% | 95% | 0 |
| Sun 1a | Cloudy | 40°4° (likely 38°3° to 41°5°) | 40°4° | 10% | 2 mph3 km/h from SSE, gusts 5 mph8 km/h | 85% | 95% | 0 |
| Sun 2a | Fog | 41°5° (likely 37°3° to 41°5°) | 41°5° | 10% | 2 mph3 km/h from SE, gusts 5 mph8 km/h | 86% | 93% | 0 |
| Sun 3a | Cloudy | 40°4° (likely 37°3° to 40°4°) | 40°4° | 5% | 1 mph2 km/h from SE, gusts 5 mph9 km/h | 89% | 91% | 0 |
| Sun 4a | Fog | 39°4° (likely 37°3° to 40°4°) | 39°4° | 5% | 1 mph2 km/h from SE, gusts 4 mph7 km/h | 92% | 87% | 0 |
| Sun 5a | Fog | 38°3° (likely 37°3° to 39°4°) | 38°3° | 5% | 2 mph3 km/h from SE, gusts 5 mph8 km/h | 96% | 84% | 0 |
| Sun 6a | Fog | 37°3° (likely 36°2° to 39°4°) | 37°3° | 0% | 2 mph3 km/h from SE, gusts 5 mph7 km/h | 100% | 80% | 0 |
| Sun 7a | Fog | 37°3° (likely 37°3° to 39°4°) | 37°3° | 0% | 2 mph3 km/h from ESE, gusts 5 mph7 km/h | 100% | 78% | 0 |
| Sun 8a | Fog | 37°3° (likely 37°3° to 39°4°) | 37°3° | 0% | 2 mph3 km/h from ESE, gusts 4 mph6 km/h | 100% | 79% | 0 |
| Sun 9a | Fog | 39°4° (likely 38°3° to 40°4°) | 39°4° | 5% | 2 mph3 km/h from NE, gusts 4 mph6 km/h | 100% | 77% | 1 |
| Sun 10a | Fog | 42°6° (likely 39°4° to 42°6°) | 42°6° | 5% | 2 mph3 km/h from ENE, gusts 6 mph9 km/h | 96% | 79% | 2 |
| Sun 11a | Fog | 45°7° (likely 40°4° to 45°7°) | 44°7° | 5% | 3 mph5 km/h from ENE, gusts 6 mph10 km/h | 89% | 81% | 3 |
| Sun 12p | Cloudy | 47°8° (likely 42°6° to 47°8°) | 46°8° | 20%, 0.01 in0.3 mm | 3 mph5 km/h from E, gusts 6 mph9 km/h | 83% | 81% | 4 |
| Sun 1p | Showers | 49°9° (likely 44°7° to 50°10°) | 48°9° | 20%, 0.01 in0.3 mm | 3 mph5 km/h from ENE, gusts 7 mph11 km/h | 77% | 75% | 5 |
| Sun 2p | Partly sunny | 49°9° (likely 47°8° to 51°11°) | 48°9° | 20%, 0.01 in0.3 mm | 3 mph5 km/h from ENE, gusts 9 mph14 km/h | 74% | 39% | 5 |
| Sun 3p | Showers | 50°10° (likely 49°9° to 52°11°) | 49°9° | 20%, 0.01 in0.3 mm | 3 mph5 km/h from ENE, gusts 7 mph12 km/h | 71% | 59% | 4 |
| Sun 4p | Cloudy | 51°11° (likely 49°9° to 52°11°) | 51°11° | 20%, 0.01 in0.3 mm | 3 mph5 km/h from NE, gusts 7 mph12 km/h | 68% | 66% | 3 |
| Sun 5p | Cloudy | 49°9° (likely 48°9° to 51°11°) | 47°8° | 20%, 0.01 in0.3 mm | 5 mph8 km/h from NE, gusts 9 mph14 km/h | 74% | 78% | 1 |
| Sun 6p | Drizzle | 47°8° (likely 46°8° to 48°9°) | 45°7° | 70%, 0.04 in1 mm | 5 mph8 km/h from NNE, gusts 10 mph16 km/h | 79% | 97% | 0 |
| Sun 7p | Showers | 45°7° (likely 44°7° to 46°8°) | 44°7° | 70%, 0.04 in1 mm | 3 mph5 km/h from NNE, gusts 11 mph17 km/h | 86% | 99% | 0 |
| Sun 8p | Showers | 44°7° (likely 43°6° to 46°8°) | 44°7° | 70%, 0.04 in1 mm | 2 mph3 km/h from NNE, gusts 10 mph17 km/h | 86% | 99% | 0 |
| Sun 9p | Showers | 44°7° (likely 43°6° to 45°7°) | 44°7° | 70%, 0.04 in1 mm | 2 mph3 km/h from N, gusts 11 mph17 km/h | 89% | 99% | 0 |
| Sun 10p | Drizzle | 44°7° (likely 42°6° to 45°7°) | 44°7° | 70%, 0.04 in1 mm | 2 mph3 km/h from N, gusts 9 mph15 km/h | 89% | 99% | 0 |
| Sun 11p | Showers | 44°7° (likely 42°6° to 45°7°) | 44°7° | 70%, 0.04 in1 mm | 2 mph3 km/h from N, gusts 8 mph12 km/h | 89% | 99% | 0 |
| Mon 12a | Showers | 44°7° (likely 42°6° to 45°7°) | 44°7° | 70%, 0.03 in0.8 mm | 0 mph0 km/h, gusts 6 mph10 km/h | 89% | 99% | 0 |
| Mon 1a | Showers | 44°7° (likely 41°5° to 47°8°) | 44°7° | 70%, 0.03 in0.8 mm | 0 mph0 km/h, gusts 3 mph5 km/h | 89% | 99% | 0 |
| Mon 2a | Showers | 44°7° (likely 41°5° to 45°7°) | 44°7° | 70%, 0.03 in0.8 mm | 0 mph0 km/h, gusts 3 mph4 km/h | 86% | 75% | 0 |
| Mon 3a | Showers | 43°6° (likely 39°4° to 44°7°) | 43°6° | 70%, 0.03 in0.8 mm | 0 mph0 km/h, gusts 5 mph7 km/h | 89% | 97% | 0 |
| Mon 4a | Showers | 42°6° (likely 40°4° to 44°7°) | 42°6° | 70%, 0.03 in0.8 mm | 0 mph0 km/h, gusts 5 mph8 km/h | 93% | 99% | 0 |
| Mon 5a | Showers | 42°6° (likely 40°4° to 44°7°) | 42°6° | 70%, 0.03 in0.8 mm | 0 mph0 km/h, gusts 3 mph5 km/h | 89% | 95% | 0 |
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
30% chance · 0.06 in1.5 mm
Evening
6 PM–midnight
40% chance · 0.12 in3 mm
Overnight
midnight–6 AM
Dry
Official NWS forecast
Today: A chance of rain showers after noon. Mostly cloudy. High near 52, with temperatures falling to around 48 in the afternoon. East wind 3 to 8 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. Cloudy, with a low around 37. Southeast wind 1 to 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
20% chance · 0.06 in1.5 mm
Evening
6 PM–midnight
70% chance · 0.24 in6.1 mm
Overnight
midnight–6 AM
70% chance · 0.18 in4.6 mm
Official NWS forecast
Day: A slight chance of rain showers after noon. Partly sunny. High near 51, with temperatures falling to around 49 in the afternoon. East northeast wind around 5 mph. Chance of precipitation is 20%.
Night: Rain showers likely. Cloudy, with a low around 41. North northeast wind 0 to 5 mph. Chance of precipitation is 70%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
50% chance · 0.03 in0.7 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 chance of rain showers before noon. Partly sunny, with a high near 57. East northeast wind 0 to 3 mph. Chance of precipitation is 30%.
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: Sunny, with a high near 64.
Night: Mostly clear, with a low around 39.
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 63.
Night: Partly cloudy, with a low around 40.
Forecasts agreeIndependent forecasts are close; the range is narrow.
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 64.
Night: Partly cloudy, with a low around 43.
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 64.
Night: Mostly cloudy, with a low around 43.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
20% chance · 0.03 in0.7 mm
Evening
6 PM–midnight
30% chance · 0.04 in0.9 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
20% chance · 0.2 in0.4 cm
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
30% chance · 0.02 in0.5 mm
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.
30% chance of rain, high 52°, low 37°.
Dry, high 51°, low 41°.
Dry, high 57°, low 37°, warming up.
Mostly dry, highs 49–64°.
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 4:15 AM · NWS gauge page
Reading from Sat 4:45 AM · NWS gauge page
Reading from Sat 3:15 AM · NWS gauge page
Reading from Sat 4:15 AM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
About 71% 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 13 hours are near freezing and damp, when outdoor units defrost more often.
Dry air outside (dew point 33°F).
No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.
Today’s expected high is 10°6° colder than typical.
On average 9°5° warmer than normal (daily mean temperature).
Altona weather by month: normals, records, snow and freeze dates
Sunrise 7:21 AM, sunset 6:08 PM.
Cloud forecast not available for tonight.
Waxing gibbous
96% lit · growing
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