Monthly outlook for Barr Lake, CO: average high 56.8°, average low 34.3°. That is 5.8° above the climate normal for November. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 16 November (66°), the coolest 22 November (29.5°).
56.8°/34.3°
Average high / low
+5.8°
Above normal
0 / 3
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 November – 24 November
58.4°
48.5°
+5.5°
25 November – 4 December
54°
43°
+6.2°
5 December – 14 December
at normal
41.3°
—
November records over 66 years
81.1°2 November 2025All-time high
-11.2°28 November 1976All-time low
Climate normals and records are computed from the nearest reference point — Thornton (9 mi).
Mon, 1666° / 39°0
66 °
Barr Lake, Monday, 16 November
Partly cloudy. High 66°, low 39°.
Pressure30.03 inHg
Wind1.4 mph SE
Humidity35%
Visibility6.2 mi
Dew point28°
Tue, 1765° / 34°0
65 °
Barr Lake, Tuesday, 17 November
Overcast. High 65°, low 34°.
Pressure29.80 inHg
Wind3.5 mph E
Humidity30%
Visibility6.2 mi
Dew point25°
Wed, 1859° / 39°0
59 °
Barr Lake, Wednesday, 18 November
Clear. High 59°, low 39°.
Pressure29.80 inHg
Wind9.1 mph W
Humidity32%
Visibility6.2 mi
Dew point16°
Thu, 1951° / 30°0
51 °
Barr Lake, Thursday, 19 November
Overcast. High 51°, low 30°.
Pressure30.12 inHg
Wind2.4 mph N
Humidity51%
Visibility6.2 mi
Dew point21°
Fri, 2064° / 32°0
64 °
Barr Lake, Friday, 20 November
Partly cloudy. High 64°, low 32°.
Pressure29.71 inHg
Wind17.5 mph NW
Humidity39%
Visibility—
Dew point28°
Sat, 2156° / 35°0
56 °
Barr Lake, Saturday, 21 November
Clear. High 56°, low 35°.
Pressure30.03 inHg
Wind11.9 mph SW
Humidity20%
Visibility—
Dew point11°
Sun, 2251° / 30°0
51 °
Barr Lake, Sunday, 22 November
Partly cloudy. High 51°, low 30°.
Pressure30.00 inHg
Wind3.6 mph NE
Humidity23%
Visibility—
Dew point10°
Mon, 2353° / 35°0
53 °
Barr Lake, Monday, 23 November
Overcast. High 53°, low 35°.
Pressure30.03 inHg
Wind8.8 mph S
Humidity21%
Visibility—
Dew point9°
Tue, 2462° / 35°0
62 °
Barr Lake, Tuesday, 24 November
Mostly clear. High 62°, low 35°.
Pressure29.94 inHg
Wind7.4 mph S
Humidity18%
Visibility—
Dew point10°
Wed, 2557° / 35°0.02
57 °
Barr Lake, Wednesday, 25 November
Light rain. High 57°, low 35°.
Pressure29.74 inHg
Wind14.5 mph NW
Humidity18%
Visibility—
Dew point12°
Thu, 2652° / 30°0
52 °
Barr Lake, Thursday, 26 November
Partly cloudy. High 52°, low 30°.
Pressure30.12 inHg
Wind6.4 mph SW
Humidity21%
Visibility—
Dew point6°
Fri, 2755° / 35°0
55 °
Barr Lake, Friday, 27 November
Clear. High 55°, low 35°.
Pressure30.09 inHg
Wind7.1 mph SW
Humidity31%
Visibility—
Dew point19°
Sat, 2857° / 36°0.02
57 °
Barr Lake, Saturday, 28 November
Light rain. High 57°, low 36°.
Pressure29.53 inHg
Wind15.4 mph N
Humidity25%
Visibility—
Dew point17°
Sun, 2952° / 34°0
52 °
Barr Lake, Sunday, 29 November
Light rain. High 52°, low 34°.
Pressure29.97 inHg
Wind21.9 mph N
Humidity41%
Visibility—
Dew point25°
Mon, 3052° / 32°0
52 °
Barr Lake, Monday, 30 November
Overcast. High 52°, low 32°.
Pressure30.18 inHg
Wind8.4 mph E
Humidity42%
Visibility—
Dew point23°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0143° / 20°0.02
43 °
Barr Lake, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high43°
Average low20°
Average precipitation0.02 in
Chance of precipitation10%
Record high71° (2021)
Record low-4° (1985)
Wed, 0244° / 20°0.02
44 °
Barr Lake, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high44°
Average low20°
Average precipitation0.02 in
Chance of precipitation13%
Record high66° (2021)
Record low-3° (1985)
Thu, 0343° / 20°0.04
43 °
Barr Lake, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high43°
Average low20°
Average precipitation0.04 in
Chance of precipitation17%
Record high65° (2017)
Record low-6° (1978)
Fri, 0444° / 19°0.02
44 °
Barr Lake, Friday, 4 December
Climate normal for this date — 60-year average.
Average high44°
Average low19°
Average precipitation0.02 in
Chance of precipitation8%
Record high64° (2007)
Record low-2° (2005)
Sat, 0543° / 19°0.03
43 °
Barr Lake, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high43°
Average low19°
Average precipitation0.03 in
Chance of precipitation13%
Record high66° (2012)
Record low-17° (1972)
Sun, 0640° / 19°0.03
40 °
Barr Lake, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high40°
Average low19°
Average precipitation0.03 in
Chance of precipitation17%
Record high58° (2023)
Record low-24° (1972)
Mon, 0741° / 19°0.04
41 °
Barr Lake, Monday, 7 December
Climate normal for this date — 60-year average.
Average high41°
Average low19°
Average precipitation0.04 in
Chance of precipitation22%
Record high60° (1965)
Record low-8° (1972)
Tue, 0841° / 19°0.03
41 °
Barr Lake, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high41°
Average low19°
Average precipitation0.03 in
Chance of precipitation22%
Record high60° (1981)
Record low-19° (1978)
Wed, 0941° / 17°0.04
41 °
Barr Lake, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high41°
Average low17°
Average precipitation0.04 in
Chance of precipitation17%
Record high61° (1981)
Record low-16° (1978)
Thu, 1042° / 17°0.03
42 °
Barr Lake, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high42°
Average low17°
Average precipitation0.03 in
Chance of precipitation12%
Record high62° (1990)
Record low-21° (1972)
Fri, 1142° / 18°0.03
42 °
Barr Lake, Friday, 11 December
Climate normal for this date — 60-year average.
Average high42°
Average low18°
Average precipitation0.03 in
Chance of precipitation15%
Record high65° (2025)
Record low-13° (1972)
Sat, 1242° / 18°0.02
42 °
Barr Lake, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high42°
Average low18°
Average precipitation0.02 in
Chance of precipitation12%
Record high65° (2017)
Record low-19° (1961)
Sun, 1342° / 19°0.03
42 °
Barr Lake, Sunday, 13 December
Climate normal for this date — 60-year average.
Average high42°
Average low19°
Average precipitation0.03 in
Chance of precipitation17%
Record high63° (2025)
Record low-12° (1961)
Mon, 1441° / 19°0.02
41 °
Barr Lake, Monday, 14 December
Climate normal for this date — 60-year average.
Average high41°
Average low19°
Average precipitation0.02 in
Chance of precipitation18%
Record high63° (2021)
Record low-7° (1972)
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 Barr Lake, 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 Barr Lake, 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.