As of 00:15 MDT

Weather in Gunbarrel, CO

75°Current weather

Gunbarrel, Sunday, 9 August, 00:15

Overcast. Feels like 74°. High 95°, low 65°.

Pressure29.80 inHg
Wind6 mph NW
Humidity28%
Visibility6.2 mi
Dew point39°

Monthly outlook for Gunbarrel, CO: average high 89.2°, average low 64°. That is 4.3° above the climate normal for August. Precipitation is expected on 9 days (about 2.3 inches), against a normal of 8 days and 1.5 inches. The warmest day looks like 12 August (98.2°), the coolest 16 August (59.9°).

89.2°/64°
Average high / low
+4.3°
Above normal
9 / 8
Wet days / normal
2.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 August – 18 August90.4°81.5°+4.9°
19 August – 28 August87.2°81.2°+3.3°
29 August – 7 Septemberat normal79.9°

August records over 66 years

97.9°7 August 2025All-time high
40.5°28 August 2004All-time low

Climate normals and records are computed from the nearest reference point — Boulder (5 mi).

Mon, 1095° / 61°0.12Rain
95 °Rain

Gunbarrel, Monday, 10 August

Rain. High 95°, low 61°.

Pressure29.80 inHg
Wind10.2 mph SE
Humidity17%
Visibility6.2 mi
Dew point41°
Tue, 1198° / 68°0Overcast
98 °Overcast

Gunbarrel, Tuesday, 11 August

Overcast. High 98°, low 68°.

Pressure29.80 inHg
Wind8.7 mph E
Humidity14%
Visibility6.2 mi
Dew point39°
Wed, 1298° / 68°0.02Light rain
98 °Light rain

Gunbarrel, Wednesday, 12 August

Light rain. High 98°, low 68°.

Pressure29.77 inHg
Wind4.8 mph E
Humidity18%
Visibility6.2 mi
Dew point41°
Thu, 1390° / 64°0.52Rain
90 °Rain

Gunbarrel, Thursday, 13 August

Rain. High 90°, low 64°.

Pressure29.80 inHg
Wind16.6 mph W
Humidity37%
Visibility
Dew point51°
Fri, 1481° / 63°0.13Light rain
81 °Light rain

Gunbarrel, Friday, 14 August

Light rain. High 81°, low 63°.

Pressure30.00 inHg
Wind6.3 mph E
Humidity82%
Visibility
Dew point60°
Sat, 1577° / 62°0.42Rain
77 °Rain

Gunbarrel, Saturday, 15 August

Rain. High 77°, low 62°.

Pressure30.12 inHg
Wind7.4 mph SW
Humidity60%
Visibility
Dew point59°
Sun, 1685° / 60°0.05Light rain
85 °Light rain

Gunbarrel, Sunday, 16 August

Light rain. High 85°, low 60°.

Pressure30.03 inHg
Wind8.5 mph SW
Humidity45%
Visibility
Dew point53°
Mon, 1790° / 64°0Light rain
90 °Light rain

Gunbarrel, Monday, 17 August

Light rain. High 90°, low 64°.

Pressure30.00 inHg
Wind10 mph W
Humidity25%
Visibility
Dew point44°
Tue, 1895° / 65°0Clear
95 °Clear

Gunbarrel, Tuesday, 18 August

Clear. High 95°, low 65°.

Pressure29.94 inHg
Wind10 mph SE
Humidity21%
Visibility
Dew point43°
Wed, 1981° / 63°0.78Heavy rain
81 °Heavy rain

Gunbarrel, Wednesday, 19 August

Heavy rain. High 81°, low 63°.

Pressure30.03 inHg
Wind14 mph NW
Humidity43%
Visibility
Dew point51°
Thu, 2080° / 64°0.07Light rain
80 °Light rain

Gunbarrel, Thursday, 20 August

Light rain. High 80°, low 64°.

Pressure29.97 inHg
Wind10.8 mph NE
Humidity58%
Visibility
Dew point57°
Fri, 2187° / 63°0.15Light rain
87 °Light rain

Gunbarrel, Friday, 21 August

Light rain. High 87°, low 63°.

Pressure29.74 inHg
Wind18.4 mph W
Humidity27%
Visibility
Dew point46°
Sat, 2291° / 62°0Partly cloudy
91 °Partly cloudy

Gunbarrel, Saturday, 22 August

Partly cloudy. High 91°, low 62°.

Pressure29.83 inHg
Wind12.3 mph SE
Humidity20%
Visibility
Dew point38°
Sun, 2392° / 63°0Partly cloudy
92 °Partly cloudy

Gunbarrel, Sunday, 23 August

Partly cloudy. High 92°, low 63°.

Pressure29.85 inHg
Wind8 mph SE
Humidity25%
Visibility
Dew point44°
Mon, 2492° / 68°0Overcast
92 °Overcast

Gunbarrel, Monday, 24 August

Overcast. High 92°, low 68°.

Pressure29.85 inHg
Wind8.3 mph W
Humidity16%
Visibility
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2581° / 56°0.07Climate normal
81 °Climate normal

Gunbarrel, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high81°
Average low56°
Average precipitation0.07 in
Chance of precipitation50%
Record high94° (2019)
Record low47° (1972)
Wed, 2681° / 56°0.08Climate normal
81 °Climate normal

Gunbarrel, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high81°
Average low56°
Average precipitation0.08 in
Chance of precipitation48%
Record high91° (1994)
Record low48° (1992)
Thu, 2781° / 56°0.08Climate normal
81 °Climate normal

Gunbarrel, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high81°
Average low56°
Average precipitation0.08 in
Chance of precipitation42%
Record high92° (2012)
Record low43° (1992)
Fri, 2881° / 55°0.07Climate normal
81 °Climate normal

Gunbarrel, Friday, 28 August

Climate normal for this date — 60-year average.

Average high81°
Average low55°
Average precipitation0.07 in
Chance of precipitation57%
Record high90° (2013)
Record low40° (2004)
Sat, 2981° / 55°0.06Climate normal
81 °Climate normal

Gunbarrel, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high81°
Average low55°
Average precipitation0.06 in
Chance of precipitation40%
Record high93° (2012)
Record low46° (2004)
Sun, 3081° / 55°0.08Climate normal
81 °Climate normal

Gunbarrel, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high81°
Average low55°
Average precipitation0.08 in
Chance of precipitation40%
Record high91° (2005)
Record low44° (1964)
Mon, 3180° / 55°0.07Climate normal
80 °Climate normal

Gunbarrel, Monday, 31 August

Climate normal for this date — 60-year average.

Average high80°
Average low55°
Average precipitation0.07 in
Chance of precipitation42%
Record high93° (2011)
Record low44° (1968)
Tue, 0180° / 54°0.08Climate normal
80 °Climate normal

Gunbarrel, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high80°
Average low54°
Average precipitation0.08 in
Chance of precipitation37%
Record high94° (2019)
Record low42° (1965)
Wed, 0280° / 53°0.06Climate normal
80 °Climate normal

Gunbarrel, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high80°
Average low53°
Average precipitation0.06 in
Chance of precipitation38%
Record high95° (2019)
Record low41° (1974)
Thu, 0380° / 53°0.05Climate normal
80 °Climate normal

Gunbarrel, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high80°
Average low53°
Average precipitation0.05 in
Chance of precipitation30%
Record high92° (2017)
Record low37° (1961)
Fri, 0480° / 53°0.05Climate normal
80 °Climate normal

Gunbarrel, Friday, 4 September

Climate normal for this date — 60-year average.

Average high80°
Average low53°
Average precipitation0.05 in
Chance of precipitation33%
Record high92° (1960)
Record low41° (1961)
Sat, 0580° / 53°0.05Climate normal
80 °Climate normal

Gunbarrel, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high80°
Average low53°
Average precipitation0.05 in
Chance of precipitation25%
Record high94° (2020)
Record low44° (1962)
Sun, 0679° / 53°0.06Climate normal
79 °Climate normal

Gunbarrel, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high79°
Average low53°
Average precipitation0.06 in
Chance of precipitation40%
Record high95° (2020)
Record low43° (1968)
Mon, 0778° / 53°0.07Climate normal
78 °Climate normal

Gunbarrel, Monday, 7 September

Climate normal for this date — 60-year average.

Average high78°
Average low53°
Average precipitation0.07 in
Chance of precipitation33%
Record high93° (2022)
Record low43° (2010)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Gunbarrel, CO are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Gunbarrel, CO since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.