Boulder Creek (CO) at North 75TH St.
5.7 mi- Level
- 4.3 ft
- Flow
- 5 cfs
Reading from Fri 5:15 AM · NWS gauge page
Observed 6:15 AM MDT at KEIK
Lafayette, CO weather
Mostly cloudy and 63°17°, 15°8° warmer than a typical Oct 23.
Today: low 46°8° (likely 46°8° to 57°14°), high 78°26° (likely 76°24° to 78°26°).
Now 63°17°
Mostly cloudy
- Wind
- 10 mph17 km/h
- From the south. Gusts to 21 mph34 km/h around 1 PM
- Dew point
- 41°5°
- Comfortable
- UV index
- 0Low
- Moderate 12–4 PM · peak 4
- Air quality
- 58Moderate
- Main pollutant: PM10 (dust)
- Pressure
- 29.85 inHg1011 hPa
- Steady over the last 3 h
Next 2 hours
No precipitation expected in the next 2 hours.
From forecast models
Next 48 hours
Good hours for
This morningUp to 70°21° by 11 AM · Partly cloudy
This afternoonUp to 77°25° by 4 PM · Clear
TonightDown to 48°9° by 5 AM · Mostly cloudy
Tomorrow morningUp to 52°11° by 10 AM · Mostly cloudy
Tomorrow afternoonNear 54°12° · rain chance 20% · Cloudy
Tomorrow nightDown to 40°4° by 4 AM · rain chance 40% · Mostly cloudy
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Fri 7a | Mostly sunny | 53°12° (likely 52°11° to 59°15°) | 53°12° | 5% | 6 mph10 km/h from SSW, gusts 13 mph21 km/h | 74% | 64% | 0 |
| Fri 8a | Mostly cloudy | 55°13° (likely 55°13° to 58°14°) | 55°13° | 5% | 7 mph11 km/h from SSW, gusts 12 mph19 km/h | 69% | 62% | 0 |
| Fri 9a | Cloudy | 59°15° (likely 59°15° to 63°17°) | 59°15° | 5% | 7 mph11 km/h from SSW, gusts 15 mph24 km/h | 62% | 68% | 0 |
| Fri 10a | Partly sunny | 66°19° (likely 64°18° to 69°21°) | 66°19° | 5% | 8 mph13 km/h from SSW, gusts 18 mph29 km/h | 47% | 52% | 1 |
| Fri 11a | Sunny | 70°21° (likely 69°21° to 73°23°) | 70°21° | 5% | 8 mph13 km/h from S, gusts 18 mph30 km/h | 38% | 5% | 2 |
| Fri 12p | Sunny | 73°23° (likely 72°22° to 76°24°) | 73°23° | 0% | 9 mph14 km/h from S, gusts 18 mph29 km/h | 31% | 0% | 4 |
| Fri 1p | Sunny | 75°24° (likely 74°23° to 77°25°) | 75°24° | 0% | 9 mph14 km/h from S, gusts 21 mph34 km/h | 27% | 0% | 4 |
| Fri 2p | Sunny | 76°24° (likely 76°24° to 78°26°) | 76°24° | 0% | 9 mph14 km/h from SSW, gusts 21 mph34 km/h | 24% | 0% | 4 |
| Fri 3p | Sunny | 76°24° (likely 76°24° to 78°26°) | 76°24° | 0% | 10 mph16 km/h from SW, gusts 20 mph32 km/h | 23% | 9% | 3 |
| Fri 4p | Sunny | 77°25° (likely 76°24° to 78°26°) | 77°25° | 0% | 10 mph16 km/h from SW, gusts 17 mph27 km/h | 22% | 14% | 2 |
| Fri 5p | Partly sunny | 74°23° (likely 73°23° to 76°24°) | 74°23° | 0% | 9 mph14 km/h from WSW, gusts 14 mph23 km/h | 25% | 25% | 1 |
| Fri 6p | Mostly clear | 70°21° (likely 68°20° to 71°22°) | 70°21° | 0% | 8 mph13 km/h from W, gusts 9 mph14 km/h | 29% | 33% | 0 |
| Fri 7p | Mostly clear | 66°19° (likely 62°17° to 66°19°) | 66°19° | 0% | 7 mph11 km/h from W, gusts 15 mph24 km/h | 33% | 64% | 0 |
| Fri 8p | Partly cloudy | 62°17° (likely 59°15° to 63°17°) | 62°17° | 0% | 7 mph11 km/h from W, gusts 19 mph30 km/h | 39% | 79% | 0 |
| Fri 9p | Partly cloudy | 60°16° (likely 58°14° to 61°16°) | 60°16° | 0% | 7 mph11 km/h from W, gusts 13 mph21 km/h | 42% | 81% | 0 |
| Fri 10p | Partly cloudy | 58°14° (likely 56°13° to 59°15°) | 58°14° | 0% | 6 mph10 km/h from W, gusts 12 mph19 km/h | 45% | 81% | 0 |
| Fri 11p | Partly cloudy | 56°13° (likely 54°12° to 57°14°) | 56°13° | 0% | 6 mph10 km/h from W, gusts 8 mph13 km/h | 49% | 44% | 0 |
| Sat 12a | Partly cloudy | 54°12° (likely 53°12° to 55°13°) | 54°12° | 0% | 5 mph8 km/h from W, gusts 7 mph11 km/h | 52% | 50% | 0 |
| Sat 1a | Mostly clear | 52°11° (likely 50°10° to 53°12°) | 52°11° | 0% | 5 mph8 km/h from W, gusts 5 mph8 km/h | 56% | 71% | 0 |
| Sat 2a | Mostly clear | 51°11° (likely 48°9° to 52°11°) | 51°11° | 0% | 5 mph8 km/h from W, gusts 6 mph10 km/h | 56% | 67% | 0 |
| Sat 3a | Cloudy | 50°10° (likely 48°9° to 51°11°) | 48°9° | 0% | 5 mph8 km/h from W, gusts 6 mph9 km/h | 58% | 68% | 0 |
| Sat 4a | Cloudy | 49°9° (likely 48°9° to 50°10°) | 48°9° | 0% | 3 mph5 km/h from W, gusts 6 mph9 km/h | 61% | 66% | 0 |
| Sat 5a | Cloudy | 48°9° (likely 47°8° to 50°10°) | 47°8° | 0% | 3 mph5 km/h from WSW, gusts 5 mph8 km/h | 63% | 70% | 0 |
| Sat 6a | Cloudy | 47°8° (likely 46°8° to 50°10°) | 46°8° | 5% | 3 mph5 km/h from NNW, gusts 8 mph12 km/h | 63% | 78% | 0 |
| Sat 7a | Mostly sunny | 47°8° (likely 46°8° to 48°9°) | 45°7° | 5% | 5 mph8 km/h from N, gusts 8 mph12 km/h | 63% | 58% | 0 |
| Sat 8a | Cloudy | 46°8° (likely 46°8° to 49°9°) | 43°6° | 5% | 6 mph10 km/h from N, gusts 11 mph18 km/h | 68% | 76% | 0 |
| Sat 9a | Cloudy | 50°10° (likely 47°8° to 51°11°) | 47°8° | 5% | 8 mph13 km/h from NE, gusts 10 mph16 km/h | 63% | 67% | 1 |
| Sat 10a | Mostly cloudy | 52°11° (likely 46°8° to 53°12°) | 52°11° | 5% | 9 mph14 km/h from NE, gusts 13 mph22 km/h | 59% | 40% | 2 |
| Sat 11a | Partly sunny | 52°11° (likely 47°8° to 53°12°) | 52°11° | 5% | 8 mph13 km/h from NE, gusts 12 mph19 km/h | 56% | 64% | 3 |
| Sat 12p | Cloudy | 53°12° (likely 47°8° to 53°12°) | 53°12° | 20% | 8 mph13 km/h from NE, gusts 10 mph17 km/h | 52% | 77% | 4 |
| Sat 1p | Cloudy | 53°12° (likely 48°9° to 54°12°) | 53°12° | 20% | 8 mph13 km/h from NE, gusts 10 mph15 km/h | 52% | 80% | 4 |
| Sat 2p | Cloudy | 54°12° (likely 49°9° to 55°13°) | 54°12° | 20% | 7 mph11 km/h from NE, gusts 9 mph15 km/h | 48% | 84% | 4 |
| Sat 3p | Cloudy | 54°12° (likely 50°10° to 55°13°) | 54°12° | 20% | 7 mph11 km/h from ENE, gusts 8 mph13 km/h | 48% | 88% | 3 |
| Sat 4p | Cloudy | 54°12° (likely 49°9° to 54°12°) | 54°12° | 20% | 6 mph10 km/h from ENE, gusts 7 mph11 km/h | 47% | 90% | 2 |
| Sat 5p | Cloudy | 54°12° (likely 49°9° to 54°12°) | 54°12° | 20% | 6 mph10 km/h from ENE, gusts 9 mph14 km/h | 45% | 98% | 1 |
| Sat 6p | Drizzle | 51°11° (likely 46°8° to 51°11°) | 51°11° | 40% | 5 mph8 km/h from ENE, gusts 9 mph14 km/h | 52% | 99% | 0 |
| Sat 7p | Drizzle | 48°9° (likely 44°7° to 49°9°) | 47°8° | 40% | 3 mph5 km/h from ENE, gusts 5 mph7 km/h | 60% | 91% | 0 |
| Sat 8p | Cloudy | 47°8° (likely 43°6° to 48°9°) | 47°8° | 40% | 2 mph3 km/h from E, gusts 4 mph7 km/h | 65% | 86% | 0 |
| Sat 9p | Cloudy | 46°8° (likely 42°6° to 47°8°) | 46°8° | 40% | 2 mph3 km/h from E, gusts 8 mph13 km/h | 68% | 84% | 0 |
| Sat 10p | Cloudy | 46°8° (likely 41°5° to 46°8°) | 46°8° | 40% | 2 mph3 km/h from E, gusts 5 mph9 km/h | 68% | 77% | 0 |
| Sat 11p | Cloudy | 45°7° (likely 40°4° to 46°8°) | 45°7° | 40% | 1 mph2 km/h from E, gusts 5 mph9 km/h | 73% | 77% | 0 |
| Sun 12a | Cloudy | 44°7° (likely 39°4° to 46°8°) | 44°7° | 30% | 1 mph2 km/h from E, gusts 6 mph9 km/h | 76% | 76% | 0 |
| Sun 1a | Partly cloudy | 43°6° (likely 38°3° to 47°8°) | 43°6° | 30% | 1 mph2 km/h from E, gusts 7 mph11 km/h | 79% | 72% | 0 |
| Sun 2a | Showers | 42°6° (likely 38°3° to 47°8°) | 42°6° | 30% | 1 mph2 km/h from E, gusts 5 mph9 km/h | 86% | 83% | 0 |
| Sun 3a | Showers | 41°5° (likely 37°3° to 47°8°) | 41°5° | 30% | 1 mph2 km/h from E, gusts 4 mph6 km/h | 89% | 81% | 0 |
| Sun 4a | Showers | 40°4° (likely 36°2° to 44°7°) | 40°4° | 30% | 1 mph2 km/h from ENE, gusts 5 mph8 km/h | 92% | 77% | 0 |
| Sun 5a | Showers | 40°4° (likely 35°2° to 42°6°) | 40°4° | 30% | 1 mph2 km/h from NE, gusts 4 mph6 km/h | 92% | 77% | 0 |
| Sun 6a | Cloudy | 40°4° (likely 35°2° to 42°6°) | 40°4° | 10% | 1 mph2 km/h from NNE, gusts 2 mph4 km/h | 92% | 74% | 0 |
Days ahead
Shaded: typical range for these dates (1991–2020)
Today, Oct 23. Cloudy. High 78°26°, low 46°8°. Typical 63°17° / 30°−1°. Dry. Forecasts agree.
Morning
6 AM–noon
Cloudy, 55°13°Dry
Afternoon
noon–6 PM
Sunny, 77°25°Dry
Evening
6 PM–midnight
Partly cloudy, 62°17°Dry
Overnight
midnight–6 AM
Cloudy, 48°9°Dry
Official NWS forecast
Today: Mostly sunny. High near 78, with temperatures falling to around 74 in the afternoon. Southwest wind 6 to 10 mph, with gusts as high as 16 mph.
Tonight: Partly cloudy. Low around 46, with temperatures rising to around 48 overnight. West wind 3 to 8 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 76°24°–78°26°
- Low, likely
- 46°8°–57°14°
- Typical high / low
- 63°17° / 30°−1°
- Wind
- 20 mph32 km/h, gusts 30 mph47 km/h
- UV peak
- 5
Tomorrow, Oct 24. Drizzle. High 55°13°, low 39°4°. Typical 62°17° / 30°−1°. Rain 0.03 in0.8 mm, 20% chance. Mostly agree.
Morning
6 AM–noon
Cloudy, 46°8°Dry
Afternoon
noon–6 PM
Cloudy, 54°12°Dry
Evening
6 PM–midnight
Drizzle, 47°8°40% chance
Overnight
midnight–6 AM
Showers, 40°4°30% chance
Official NWS forecast
Day: A slight chance of rain showers after noon. Partly sunny, with a high near 55. North northeast wind 3 to 9 mph, with gusts as high as 16 mph. Chance of precipitation is 20%.
Night: A chance of rain showers. Mostly cloudy, with a low around 39. East northeast wind 1 to 5 mph. Chance of precipitation is 40%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 52°11°–56°13°
- Low, likely
- 39°4°–45°7°
- Typical high / low
- 62°17° / 30°−1°
- Wind
- 11 mph17 km/h, gusts 19 mph31 km/h
- UV peak
- 4
Sunday, Oct 25. Mostly cloudy. High 56°13°, low 40°4°. Typical 62°17° / 30°−1°. Dry. Forecasts differ.
Morning
6 AM–noon
Cloudy, 39°4°Dry
Afternoon
noon–6 PM
Mostly sunny, 58°14°Dry
Evening
6 PM–midnight
Drizzle, 48°9°50% chance · 0.08 in2.1 mm
Overnight
midnight–6 AM
Drizzle, 44°7°50% chance · 0.05 in1.2 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers after noon. Mostly cloudy, with a high near 56. North northeast wind 1 to 6 mph. Chance of precipitation is 20%.
Night: A chance of rain showers. Mostly cloudy, with a low around 40. Chance of precipitation is 50%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 52°11°–61°16°
- Low, likely
- 35°2°–42°6°
- Typical high / low
- 62°17° / 30°−1°
- Wind
- 16 mph26 km/h, gusts 25 mph40 km/h
- UV peak
- 5
Monday, Oct 26. Showers. High 58°14°, low 37°3°. Typical 62°17° / 30°−1°. Rain 0.11 in2.8 mm, 30% chance. Forecasts differ.
Morning
6 AM–noon
Drizzle, 44°6°40% chance · 0.05 in1.3 mm
Afternoon
noon–6 PM
Mostly sunny, 57°14°20% chance
Evening
6 PM–midnight
Clear, 47°8°Dry
Overnight
midnight–6 AM
Clear, 37°3°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain showers. Partly sunny, with a high near 58.
Night: Partly cloudy, with a low around 37.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 53°12°–60°16°
- Low, likely
- 37°3°–43°6°
- Typical high / low
- 62°17° / 30°−1°
- Wind
- 8 mph12 km/h, gusts 23 mph37 km/h
- UV peak
- 4
Tuesday, Oct 27. Partly sunny. High 63°17°, low 39°4°. Typical 61°16° / 29°−2°. Dry. Mostly agree. Best day outdoors this week.
Morning
6 AM–noon
Sunny, 38°3°Dry
Afternoon
noon–6 PM
Sunny, 62°17°Dry
Evening
6 PM–midnight
Clear, 51°11°Dry
Overnight
midnight–6 AM
Clear, 41°5°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 63.
Night: Mostly clear, with a low around 39.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Best day outdoors this week: the one dry, mild day the forecasts agree on (high 63°17°).
- High, likely
- 61°16°–64°18°
- Low, likely
- 35°2°–39°4°
- Typical high / low
- 61°16° / 29°−2°
- Wind
- 7 mph12 km/h
- UV peak
- 4
Wednesday, Oct 28. Partly sunny. High 64°18°, low 39°4°. Typical 61°16° / 29°−2°. Dry. Forecasts differ.
Morning
6 AM–noon
Sunny, 43°6°Dry
Afternoon
noon–6 PM
Sunny, 62°17°Dry
Evening
6 PM–midnight
Clear, 50°10°Dry
Overnight
midnight–6 AM
Clear, 36°2°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 39.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 59°15°–68°20°
- Low, likely
- 35°2°–44°7°
- Typical high / low
- 61°16° / 29°−2°
- Wind
- 10 mph15 km/h, gusts 32 mph52 km/h
- UV peak
- 4
Thursday, Oct 29. Mostly cloudy. High 61°16°, low 38°3°. Typical 60°16° / 29°−2°. Dry. Forecasts differ.
Morning
6 AM–noon
Cloudy, 39°4°Dry
Afternoon
noon–6 PM
Cloudy, 58°15°Dry
Evening
6 PM–midnight
Partly cloudy, 48°9°Dry
Overnight
midnight–6 AM
Clear, 37°3°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 61.
Night: Mostly cloudy, with a low around 38.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 53°12°–64°18°
- Low, likely
- 34°1°–39°4°
- Typical high / low
- 60°16° / 29°−2°
- Wind
- 10 mph16 km/h, gusts 16 mph26 km/h
- UV peak
- 4
Friday, Oct 30. Cloudy. High 60°16°, low 36°2°. Typical 60°16° / 28°−2°. Dry. Mostly agree.
Morning
6 AM–noon
Mostly sunny, 40°4°Dry
Afternoon
noon–6 PM
Cloudy, 60°15°Dry
Evening
6 PM–midnight
Partly cloudy, 48°9°Dry
Overnight
midnight–6 AM
Partly cloudy, 39°4°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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 58°14°–63°17°
- Low, likely
- 34°1°–40°4°
- Typical high / low
- 60°16° / 28°−2°
- Wind
- 7 mph11 km/h, gusts 17 mph27 km/h
- UV peak
- 4
Saturday, Oct 31. Cloudy. High 63°17°, low 39°4°. Typical 60°16° / 28°−2°. Dry. Forecasts differ.
Morning
6 AM–noon
Mostly sunny, 44°7°Dry
Afternoon
noon–6 PM
Sunny, 64°18°Dry
Evening
6 PM–midnight
Mostly clear, 52°11°Dry
Overnight
midnight–6 AM
Mostly clear, 41°5°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.
- High, likely
- 58°14°–66°19°
- Low, likely
- 36°2°–42°6°
- Typical high / low
- 60°16° / 28°−2°
- Wind
- 7 mph12 km/h
- UV peak
- 3
Sunday, Nov 1. Cloudy. High 58°14°, low 41°5°. Typical 59°15° / 28°−2°. Rain 0.04 in1 mm, 20% chance. Mostly agree.
Morning
6 AM–noon
Cloudy, 45°7°Dry
Afternoon
noon–6 PM
Cloudy, 60°16°Dry
Evening
6 PM–midnight
Cloudy, 54°12°20% 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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 55°13°–61°16°
- Low, likely
- 39°4°–43°6°
- Typical high / low
- 59°15° / 28°−2°
- Wind
- 6 mph10 km/h
- UV peak
- 3
The outlook
Today
Dry, high 78°, low 46°.
Tomorrow
Dry, high 55°, low 39°, cooling off.
Sunday
Dry, high 56°, low 40°.
Rest of week
Mostly dry, highs 58–64°.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (BOU) (opens in a new tab)
What changed since yesterday
No meaningful changes from yesterday’s forecast.
Radar
Radar data: NOAA MRMS, rendered by forecast.blue
Radar loads when scrolled into view
Rivers
NOAA river gauges within 25 mi
Below flood stage
Boulder Creek (CO) below Broadway St
9.6 mi- Level
- 1.1 ft
- Flow
- 23 cfs
Reading from Fri 4:15 AM · NWS gauge page
South Boulder Creek (CO) above Eldorado Springs
12 mi- Level
- 2.0 ft
- Flow
- 10 cfs
Reading from Fri 5:15 AM · NWS gauge page
Boulder Creek (CO) near Orodell
12 mi- Level
- 1.8 ft
Reading from Fri 5:15 AM · NWS gauge page
For your home
What this week’s weather means for heating, cooling, pipes and fresh air.
Heating this week
About 83% less heating than a typical week.
This week 23Typical 136
Heating degree days, base 65°F
Heat-pump hours, next 7 days
- h below 47°F
- 14
- h below 17°F
- 0
- h below 5°F
- 0
47, 17 and 5°F are the test points heat pumps are rated at. About 5 hours are near freezing and damp, when outdoor units defrost more often.
Comfort
Dry air outside (dew point 41°F).
Open the windows?
Today, 10:00 AM–9:00 PM
Good stretch to open the windows.
Is this typical?
LONGMONT 2 ESE · official normals 1991–2020 · records 1893–2026
Oct 23, today vs a typical year
Today’s expected high is 15°8° warmer than typical.
- Normal high / low
- 63°17° / 30°−1°
- Forecast high / low
- 78°26° / 46°8°
- Record high
- 86°30° in 2003
- Record low
- 16°−9° in 1920
Last 7 days vs normal
On average 6°3° warmer than normal (daily mean temperature).
- −4°−2°SatOct 17
- +5°+3°SunOct 18
- +9°+5°MonOct 19
- +6°+3°TueOct 20
- +9°+5°WedOct 21
- +13°+7°ThuOct 22
- —FriOct 23
Lafayette weather by month: normals, records, snow and freeze dates
Sun & moon
Sun
Sunrise 7:19 AM, sunset 6:09 PM.
- Daylight
- 10 h 50 min
- Losing 2 min 30 s a day; shortest Dec 21, 1 h 30 min less
- Golden hour
- 5:31–6:26 PM
- Morning 7:02–7:57 AM
- Blue hour
- 6:26–6:36 PM
- Morning 6:51–7:02 AM; first light 6:51 AM
Stars tonight? Poor
Clouds most of the night (about 65% cover).
Moon
Waxing gibbous
92% lit · growing
- Today
- sets 4:29 AM · rises 4:42 PM
- Full moon
- Oct 25
- New moon
- Nov 9
UniColorado Heating & Cooling, a Denver HVAC installer
UniColorado Heating & Cooling installs heat pumps, furnaces and air conditioning across the Front Range. 12,000+ heat pumps installed since 2014.