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Observed 6:15 AM MDT at KBDU

Jamestown, CO weather

Partly cloudy and 52°11°, 18°10° colder than a typical Oct 24.

Today: low 34°1° (likely 34°1° to 37°3°), high 45°7° (likely 45°7° to 54°12°).

Forecasts differ

Now 52°11°

Partly cloudy

Wind
Calm
Up to 7 mph11 km/h through 7 PM
Dew point
32°0°
Dry, static shocks likely
UV index
0Low
Moderate 11 AM–4 PM · peak 4
Air today
45Good
EPA forecast · Ozone
Pressure (notable)
30.22 inHg1023 hPa
Rising fast · +0.17 inHg+5.6 hPa in 3 h

Next 2 hours

No precipitation expected in the next 2 hours.

Next 48 hours

About the same as this time yesterday (54°12° then, 52°11° now)

Good hours for
  • Dry until 3 PM
  • Rain today 3 PM–midnight (40%, 0.15 in3.8 mm)
  • Fog tonight 2–3 AM
  • Fog tomorrow 4–10 AM
  • Rain tomorrow 3 PM–6 AM (70%, 0.33 in8.4 mm)
  1. This morningNear 44°7° · rain chance 10% · Mostly cloudy
  2. This afternoonNear 43°6° · Rain 3–6 PM (40%)
  3. TonightDown to 35°2° by 4 AM · Rain 6 PM–midnight (40%)
  4. Tomorrow morningUp to 43°6° by 11 AM · Mostly cloudy · rain chance 10%
  5. Tomorrow afternoonNear 44°7° · Rain 3–6 PM (40%)
  6. Tomorrow nightNear 39°4° · Rain all night (70%)
Hourly forecast, next 48 hours, in the place's local time
HourConditionsTemperatureFeels likePrecipitationWindHumidityCloud coverUV index
Sat 7aCloudy42°6° (likely 42°6° to 44°7°)39°4°10%5 mph8 km/h from SE, gusts 8 mph12 km/h62%73%0
Sat 8aCloudy41°5° (likely 40°4° to 44°7°)38°3°10%5 mph8 km/h from ESE, gusts 7 mph11 km/h65%81%0
Sat 9aCloudy42°6° (likely 42°6° to 45°7°)38°3°10%6 mph10 km/h from E, gusts 8 mph13 km/h65%74%1
Sat 10aMostly cloudy43°6° (likely 41°5° to 46°8°)39°4°10%7 mph11 km/h from E, gusts 9 mph15 km/h65%48%2
Sat 11aMostly cloudy45°7° (likely 41°5° to 46°8°)41°5°10%7 mph11 km/h from E, gusts 10 mph16 km/h63%53%3
Sat 12pMostly sunny44°7° (likely 42°6° to 47°8°)40°4°30%, 0.01 in0.3 mm7 mph11 km/h from E, gusts 10 mph16 km/h65%59%4
Sat 1pMostly sunny45°7° (likely 43°6° to 47°8°)41°5°30%, 0.01 in0.3 mm7 mph11 km/h from E, gusts 9 mph15 km/h65%59%4
Sat 2pCloudy43°6° (likely 43°6° to 46°8°)39°4°30%, 0.01 in0.3 mm6 mph10 km/h from E, gusts 9 mph14 km/h70%94%4
Sat 3pCloudy43°6° (likely 43°6° to 45°7°)39°4°40%, 0.01 in0.3 mm6 mph10 km/h from E, gusts 8 mph13 km/h67%99%4
Sat 4pCloudy42°6° (likely 42°6° to 44°7°)38°3°40%, 0.01 in0.3 mm6 mph10 km/h from E, gusts 9 mph14 km/h70%100%1
Sat 5pCloudy41°5° (likely 40°4° to 43°6°)38°3°40%, 0.01 in0.3 mm5 mph8 km/h from ESE, gusts 8 mph12 km/h73%99%1
Sat 6pCloudy40°4° (likely 38°3° to 41°5°)37°3°40%, 0.02 in0.5 mm5 mph8 km/h from ESE, gusts 6 mph10 km/h73%99%0
Sat 7pSnow37°3° (likely 36°2° to 40°4°)34°1°40%, 0.02 in0.5 mm3 mph5 km/h from ESE, gusts 5 mph7 km/h85%99%0
Sat 8pSnow38°3° (likely 35°2° to 39°4°)38°3°40%, 0.02 in0.5 mm2 mph3 km/h from SE, gusts 4 mph7 km/h82%96%0
Sat 9pSnow38°3° (likely 35°2° to 38°3°)36°2°20%, 0.02 in0.5 mm3 mph5 km/h from SSE, gusts 4 mph6 km/h85%98%0
Sat 10pCloudy37°3° (likely 35°2° to 37°3°)37°3°20%, 0.02 in0.5 mm2 mph3 km/h from SSE, gusts 4 mph7 km/h89%98%0
Sat 11pCloudy37°3° (likely 34°1° to 37°3°)37°3°20%, 0.02 in0.5 mm2 mph3 km/h from S, gusts 5 mph8 km/h89%83%0
Sun 12aMostly cloudy37°3° (likely 34°1° to 37°3°)37°3°10%2 mph3 km/h from S, gusts 5 mph8 km/h89%93%0
Sun 1aCloudy36°2° (likely 34°1° to 36°2°)36°2°10%2 mph3 km/h from S, gusts 5 mph9 km/h92%94%0
Sun 2aFog36°2° (likely 34°1° to 36°2°)36°2°10%1 mph2 km/h from S, gusts 5 mph8 km/h92%91%0
Sun 3aMostly cloudy36°2° (likely 34°1° to 36°2°)36°2°5%2 mph3 km/h from S, gusts 5 mph9 km/h89%90%0
Sun 4aFog35°2° (likely 33°1° to 36°2°)35°2°5%2 mph3 km/h from S, gusts 5 mph8 km/h92%87%0
Sun 5aFog35°2° (likely 33°1° to 36°2°)35°2°5%1 mph2 km/h from S, gusts 6 mph9 km/h92%84%0
Sun 6aFog34°1° (likely 33°1° to 37°3°)34°1°0%1 mph2 km/h from S, gusts 4 mph7 km/h96%81%0
Sun 7aFog34°1° (likely 33°1° to 38°3°)34°1°0%1 mph2 km/h from S, gusts 4 mph6 km/h96%77%0
Sun 8aFog34°1° (likely 33°1° to 40°4°)34°1°0%1 mph2 km/h from SSE, gusts 2 mph4 km/h100%77%0
Sun 9aFog36°2° (likely 34°1° to 42°6°)36°2°10%2 mph3 km/h from E, gusts 3 mph4 km/h92%76%1
Sun 10aPartly sunny41°5° (likely 35°2° to 45°7°)39°4°10%3 mph5 km/h from ESE, gusts 9 mph14 km/h86%72%2
Sun 11aFog43°6° (likely 37°3° to 47°8°)40°4°10%5 mph8 km/h from ESE, gusts 10 mph15 km/h79%77%3
Sun 12pShowers44°7° (likely 38°3° to 48°9°)41°5°30%, 0.01 in0.3 mm6 mph10 km/h from E, gusts 9 mph14 km/h79%77%4
Sun 1pShowers44°7° (likely 41°5° to 49°9°)41°5°30%, 0.01 in0.3 mm5 mph8 km/h from E, gusts 10 mph16 km/h82%71%5
Sun 2pPartly sunny44°7° (likely 43°6° to 49°9°)41°5°30%, 0.01 in0.3 mm5 mph8 km/h from E, gusts 11 mph18 km/h82%51%5
Sun 3pShowers43°6° (likely 43°6° to 48°9°)40°4°40%, 0.01 in0.3 mm5 mph8 km/h from E, gusts 10 mph17 km/h86%64%4
Sun 4pDrizzle43°6° (likely 43°6° to 48°9°)40°4°40%, 0.01 in0.3 mm5 mph8 km/h from E, gusts 7 mph11 km/h86%68%3
Sun 5pCloudy43°6° (likely 43°6° to 46°8°)41°5°40%, 0.01 in0.3 mm3 mph5 km/h from ENE, gusts 7 mph11 km/h86%96%1
Sun 6pCloudy40°4° (likely 40°4° to 43°6°)40°4°70%, 0.03 in0.8 mm2 mph3 km/h from ENE, gusts 6 mph10 km/h92%98%0
Sun 7pShowers38°3° (likely 38°3° to 42°6°)38°3°70%, 0.03 in0.8 mm2 mph3 km/h from NE, gusts 7 mph11 km/h100%99%0
Sun 8pShowers38°3° (likely 38°3° to 42°6°)38°3°70%, 0.03 in0.8 mm2 mph3 km/h from NNE, gusts 6 mph10 km/h96%99%0
Sun 9pShowers39°4° (likely 38°3° to 41°5°)39°4°70%, 0.03 in0.8 mm1 mph2 km/h from NNE, gusts 7 mph11 km/h96%99%0
Sun 10pShowers39°4° (likely 37°3° to 41°5°)39°4°70%, 0.03 in0.8 mm1 mph2 km/h from N, gusts 6 mph9 km/h96%93%0
Sun 11pShowers39°4° (likely 37°3° to 41°5°)39°4°70%, 0.03 in0.8 mm1 mph2 km/h from SW, gusts 5 mph8 km/h96%90%0
Mon 12aShowers39°4° (likely 36°2° to 42°6°)39°4°70%, 0.02 in0.5 mm0 mph0 km/h, gusts 4 mph6 km/h96%90%0
Mon 1aShowers39°4° (likely 36°2° to 43°6°)39°4°70%, 0.02 in0.5 mm0 mph0 km/h, gusts 2 mph4 km/h92%92%0
Mon 2aShowers38°3° (likely 36°2° to 41°5°)38°3°70%, 0.02 in0.5 mm0 mph0 km/h, gusts 3 mph5 km/h96%86%0
Mon 3aSnow38°3° (likely 36°2° to 41°5°)38°3°70%, 0.02 in0.5 mm0 mph0 km/h, gusts 4 mph6 km/h92%98%0
Mon 4aSnow37°3° (likely 36°2° to 41°5°)37°3°70%, 0.02 in0.5 mm0 mph0 km/h, gusts 4 mph7 km/h92%99%0
Mon 5aSnow37°3° (likely 36°2° to 42°6°)37°3°70%, 0.02 in0.5 mm0 mph0 km/h, gusts 4 mph7 km/h89%99%0
Mon 6aSnow37°3° (likely 36°2° to 40°4°)37°3°30%, 0.01 in0.3 mm0 mph0 km/h, gusts 4 mph7 km/h89%97%0

Days ahead

Shaded: typical range for these dates (1991–2020)
  1. Today, Oct 24. Snow. High 45°7°, low 34°1°. Typical 63°17° / 35°2°. Snow 0.03 in0.8 mm, 40% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Cloudy, 41°5°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 45°7°

      40% chance · 0.06 in1.5 mm

    3. Evening

      6 PM–midnight

      Snow, 38°3°

      40% chance · 0.12 in3 mm

    4. Overnight

      midnight–6 AM

      Mostly cloudy, 35°2°

      Dry

    Official NWS forecast

    Today: A chance of rain showers between noon and 4pm, then a chance of rain and snow showers. Mostly cloudy. High near 45, with temperatures falling to around 41 in the afternoon. East southeast wind around 7 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

    Tonight: A chance of rain and snow showers before midnight. Cloudy, with a low around 34. South 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.

    High, likely
    45°7°–54°12°
    Low, likely
    34°1°–37°3°
    Typical high / low
    63°17° / 35°2°
    Wind
    9 mph14 km/h, gusts 18 mph28 km/h
    UV peak
    4
  2. Tomorrow, Oct 25. Drizzle. High 45°7°, low 36°2°. Typical 62°17° / 34°1°. Rain 0.06 in1.5 mm, 40% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Fog, 34°1°

      Dry

    2. Afternoon

      noon–6 PM

      Showers, 44°7°

      40% chance · 0.06 in1.5 mm

    3. Evening

      6 PM–midnight

      Showers, 38°3°

      70% chance · 0.18 in4.6 mm

    4. Overnight

      midnight–6 AM

      Snow, 37°3°

      70% chance · 0.12 in3 mm

    Official NWS forecast

    Day: A chance of rain showers after noon. Partly sunny. High near 45, with temperatures falling to around 43 in the afternoon. East southeast wind 1 to 6 mph. Chance of precipitation is 40%.

    Night: Rain showers likely before 3am, then rain and snow showers likely. Cloudy, with a low around 36. North wind around 2 mph. Chance of precipitation is 70%.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    44°7°–50°10°
    Low, likely
    32°0°–36°2°
    Typical high / low
    62°17° / 34°1°
    Wind
    7 mph10 km/h, gusts 16 mph26 km/h
    UV peak
    5
  3. Monday, Oct 26. Snow. High 48°9°, low 33°1°. Typical 62°17° / 34°1°. Snow 0–1 in0–3 cm, 30% chance. Mostly agree.
    1. Morning

      6 AM–noon

      Snow, 38°3°

      30% chance · 0.02 in0.5 mm

    2. Afternoon

      noon–6 PM

      Sunny, 52°11°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 39°4°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 35°1°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: A chance of rain and snow showers. Mostly sunny, with a high near 48. Southeast wind 0 to 3 mph. Chance of precipitation is 30%.

    Night: Mostly clear, with a low around 33.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    48°9°–53°12°
    Low, likely
    32°0°–37°3°
    Typical high / low
    62°17° / 34°1°
    Wind
    9 mph14 km/h, gusts 24 mph39 km/h
    UV peak
    5
  4. Tuesday, Oct 27. Mostly sunny. High 57°14°, low 36°2°. Typical 62°17° / 34°1°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Sunny, 38°4°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 57°14°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 44°7°

      Dry

    4. Overnight

      midnight–6 AM

      Partly cloudy, 37°3°

      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 36.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    54°12°–60°16°
    Low, likely
    31°−1°–36°2°
    Typical high / low
    62°17° / 34°1°
    Wind
    18 mph28 km/h, gusts 47 mph75 km/h
    UV peak
    5
  5. Wednesday, Oct 28. Mostly sunny. High 56°13°, low 36°2°. Typical 61°16° / 34°1°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Sunny, 40°4°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 56°13°

      Dry

    3. Evening

      6 PM–midnight

      Mostly clear, 43°6°

      Dry

    4. Overnight

      midnight–6 AM

      Cloudy, 40°4°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Sunny, with a high near 56.

    Night: Partly cloudy, with a low around 36.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    55°13°–57°14°
    Low, likely
    32°0°–39°4°
    Typical high / low
    61°16° / 34°1°
    Wind
    8 mph13 km/h, gusts 44 mph71 km/h
    UV peak
    5
  6. Thursday, Oct 29. Partly sunny. High 56°13°, low 39°4°. Typical 61°16° / 33°1°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Cloudy, 43°6°

      Dry

    2. Afternoon

      noon–6 PM

      Partly sunny, 58°15°

      Dry

    3. Evening

      6 PM–midnight

      Partly cloudy, 45°7°

      Dry

    4. Overnight

      midnight–6 AM

      Cloudy, 43°6°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Mostly sunny, with a high near 56.

    Night: Partly cloudy, with a low around 39.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    56°13°–61°16°
    Low, likely
    34°1°–42°6°
    Typical high / low
    61°16° / 33°1°
    Wind
    11 mph17 km/h, gusts 26 mph42 km/h
    UV peak
    4
  7. Friday, Oct 30. Cloudy. High 56°13°, low 39°4°. Typical 61°16° / 33°1°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Cloudy, 47°8°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 59°15°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 47°8°

      Dry

    4. Overnight

      midnight–6 AM

      Cloudy, 42°5°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Partly sunny, with a high near 56.

    Night: A slight chance of rain showers after midnight. Mostly cloudy, with a low around 39.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    56°13°–61°16°
    Low, likely
    39°4°–43°6°
    Typical high / low
    61°16° / 33°1°
    Wind
    8 mph13 km/h, gusts 20 mph32 km/h
    UV peak
    4
  8. Saturday, Oct 31. Drizzle. High 54°12°, low 37°3°. Typical 60°16° / 33°1°. Rain 0.08 in2 mm, 30% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Partly sunny, 45°7°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 56°13°

      30% chance · 0.04 in0.9 mm

    3. Evening

      6 PM–midnight

      Drizzle, 41°5°

      30% chance · 0.04 in0.9 mm

    4. Overnight

      midnight–6 AM

      Drizzle, 33°0°

      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
    49°9°–57°14°
    Low, likely
    35°2°–39°4°
    Typical high / low
    60°16° / 33°1°
    Wind
    12 mph20 km/h, gusts 26 mph41 km/h
    UV peak
    4
  9. Sunday, Nov 1. Drizzle. High 45°7°, low 31°−1°. Typical 60°16° / 32°0°. Rain 0.13 in3.3 mm, 40% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Sunny, 36°2°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 46°8°

      30% chance · 0.2 in0.6 cm

    3. Evening

      6 PM–midnight

      Clear, 35°2°

      40% chance

    4. Overnight

      midnight–6 AM

      Clear, 32°0°

      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.

    High, likely
    39°4°–53°12°
    Low, likely
    29°−2°–33°1°
    Typical high / low
    60°16° / 32°0°
    Wind
    31 mph49 km/h, gusts 60 mph97 km/h
    UV peak
    4
  10. Monday, Nov 2. Cloudy. High 49°9°, low 32°0°. Typical 60°16° / 32°0°. Rain 0.05 in1.3 mm, 30% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Sunny, 40°4°

      30% chance

    2. Afternoon

      noon–6 PM

      Cloudy, 48°9°

      30% chance

    3. Evening

      6 PM–midnight

      Cloudy, 39°4°

      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.

    High, likely
    44°7°–54°12°
    Low, likely
    29°−2°–35°2°
    Typical high / low
    60°16° / 32°0°
    Wind
    19 mph30 km/h, gusts 49 mph79 km/h
    UV peak
    4

The outlook

  1. Today

    38% chance of snow, high 45°, low 34°.

  2. Tomorrow

    35% chance of rain, high 45°, low 36°.

  3. Monday

    Dry, high 48°, low 33°, warming up.

  4. Rest of week

    Mostly dry, highs 45–57°.

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

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Boulder Creek (CO) near Orodell

8.7 mi
Below flood stage
Level
1.7 ft

Reading from Sat 5:15 AM · NWS gauge page

Boulder Creek (CO) below Broadway St

9.6 mi
Below flood stage
Level
1.0 ft
Flow
16 cfs

Reading from Sat 4:15 AM · NWS gauge page

Saint Vrain Creek at Lyons

9.6 mi
Below flood stage
Level
2.8 ft

Reading from Sat 5:15 AM · NWS gauge page

Saint Vrain Creek at Hygiene

12 mi
Below flood stage
Level
0.0 ft

Reading from Sat 5:45 AM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 58% less heating than a typical week.

This week 50Typical 121

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F
47
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 29 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 32°F).

Open the windows?

No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.

Is this typical?

BOULDER · official normals 1991–2020 · records 1893–2026

Oct 24, today vs a typical year

Today’s expected high is 18°10° colder than typical.

Normal high / low
63°17° / 35°2°
Forecast high / low
45°7° / 34°1°
Record high
83°28° in 2014
Record low
19°−7° in 1975

Last 7 days vs normal

On average 9°5° warmer than normal (daily mean temperature).

  1. +3°+2°SunOct 18
  2. +4°+2°MonOct 19
  3. +8°+4°TueOct 20
  4. —WedOct 21
  5. +13°+7°ThuOct 22
  6. +17°+9°FriOct 23
  7. —SatOct 24

Jamestown weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Sunrise 7:22 AM, sunset 6:08 PM.

Daylight
10 h 47 min
Losing 2 min 25 s a day; shortest Dec 21, 1 h 28 min less
Golden hour
5:31–6:25 PM
Morning 7:05–7:59 AM
Blue hour
6:25–6:36 PM
Morning 6:54–7:05 AM; first light 6:54 AM

Stars tonight? Poor

Clouds most of the night (about 92% cover).

Moon

Waxing gibbous

96% lit · growing

Today
sets 5:39 AM · rises 5:07 PM
Full moon
Oct 25
New moon
Nov 9
Looking west from Jamestown. The highest point on the skyline is about 14,100 ft, 15 mi away.Skyline from USGS elevation data, heights drawn up to 2× taller. Sky, sun and moon as they are now.

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.