Monthly outlook for Barr Lake, CO: average high 60.7°, average low 40°. That is 3.6° above the climate normal for October. Precipitation is expected on 2 days (about 0.7 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 7 November (70.5°), the coolest 4 November (33.2°).
60.7°/40°
Average high / low
+3.6°
Above normal
2 / 3
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
27 October – 5 November
57.9°
54.7°
+1.8°
6 November – 15 November
65.4°
52.4°
+7.2°
16 November – 25 November
at normal
48.1°
—
October records over 66 years
88.2°3 October 2025All-time high
-5.3°30 October 1993All-time low
Climate normals and records are computed from the nearest reference point — Thornton (9 mi).
Wed, 2869° / 42°0
69 °
Barr Lake, Wednesday, 28 October
Overcast. High 69°, low 42°.
Pressure29.91 inHg
Wind2.6 mph W
Humidity33%
Visibility6.2 mi
Dew point34°
Thu, 2966° / 39°0
66 °
Barr Lake, Thursday, 29 October
Overcast. High 66°, low 39°.
Pressure30.06 inHg
Wind0.9 mph E
Humidity46%
Visibility6.2 mi
Dew point38°
Fri, 3064° / 39°0
64 °
Barr Lake, Friday, 30 October
Overcast. High 64°, low 39°.
Pressure30.03 inHg
Wind3.3 mph NE
Humidity52%
Visibility6.2 mi
Dew point41°
Sat, 3155° / 43°0
55 °
Barr Lake, Saturday, 31 October
Overcast. High 55°, low 43°.
Pressure29.97 inHg
Wind4.6 mph N
Humidity81%
Visibility—
Dew point44°
Sun, 0158° / 41°0
58 °
Barr Lake, Sunday, 1 November
Overcast. High 58°, low 41°.
Pressure29.91 inHg
Wind6.1 mph NW
Humidity73%
Visibility—
Dew point43°
Mon, 0254° / 33°0.59
54 °
Barr Lake, Monday, 2 November
Snow. High 54°, low 33°.
Pressure29.68 inHg
Wind22.1 mph N
Humidity60%
Visibility—
Dew point39°
Tue, 0344° / 35°0.09
44 °
Barr Lake, Tuesday, 3 November
Snow. High 44°, low 35°.
Pressure30.24 inHg
Wind18.9 mph N
Humidity63%
Visibility—
Dew point29°
Wed, 0450° / 33°0
50 °
Barr Lake, Wednesday, 4 November
Overcast. High 50°, low 33°.
Pressure30.15 inHg
Wind7.7 mph SE
Humidity50%
Visibility—
Dew point27°
Thu, 0554° / 36°0
54 °
Barr Lake, Thursday, 5 November
Overcast. High 54°, low 36°.
Pressure30.00 inHg
Wind6.7 mph E
Humidity52%
Visibility—
Dew point31°
Fri, 0662° / 40°0
62 °
Barr Lake, Friday, 6 November
Clear. High 62°, low 40°.
Pressure30.00 inHg
Wind6.5 mph S
Humidity29%
Visibility—
Dew point22°
Sat, 0771° / 46°0
71 °
Barr Lake, Saturday, 7 November
Partly cloudy. High 71°, low 46°.
Pressure29.83 inHg
Wind7.9 mph SW
Humidity27%
Visibility—
Dew point27°
Sun, 0870° / 47°0
70 °
Barr Lake, Sunday, 8 November
Overcast. High 70°, low 47°.
Pressure29.65 inHg
Wind27.7 mph NW
Humidity20%
Visibility—
Dew point25°
Mon, 0959° / 41°0
59 °
Barr Lake, Monday, 9 November
Clear. High 59°, low 41°.
Pressure30.18 inHg
Wind8.8 mph SE
Humidity35%
Visibility—
Dew point26°
Tue, 1064° / 40°0
64 °
Barr Lake, Tuesday, 10 November
Partly cloudy. High 64°, low 40°.
Pressure30.09 inHg
Wind6.3 mph E
Humidity26%
Visibility—
Dew point21°
Wed, 1167° / 43°0
67 °
Barr Lake, Wednesday, 11 November
Clear. High 67°, low 43°.
Pressure29.85 inHg
Wind8.8 mph E
Humidity19%
Visibility—
Dew point17°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 1251° / 26°0.04
51 °
Barr Lake, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high51°
Average low26°
Average precipitation0.04 in
Chance of precipitation23%
Record high72° (1989)
Record low-1° (1975)
Fri, 1352° / 27°0.04
52 °
Barr Lake, Friday, 13 November
Climate normal for this date — 60-year average.
Average high52°
Average low27°
Average precipitation0.04 in
Chance of precipitation17%
Record high73° (2025)
Record low-5° (2000)
Sat, 1450° / 26°0.06
50 °
Barr Lake, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high50°
Average low26°
Average precipitation0.06 in
Chance of precipitation22%
Record high74° (2025)
Record low-1° (2000)
Sun, 1550° / 25°0.04
50 °
Barr Lake, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high50°
Average low25°
Average precipitation0.04 in
Chance of precipitation17%
Record high73° (2016)
Record low-9° (1997)
Mon, 1652° / 25°0.02
52 °
Barr Lake, Monday, 16 November
Climate normal for this date — 60-year average.
Average high52°
Average low25°
Average precipitation0.02 in
Chance of precipitation12%
Record high76° (2016)
Record low-7° (2014)
Tue, 1750° / 24°0.04
50 °
Barr Lake, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high50°
Average low24°
Average precipitation0.04 in
Chance of precipitation17%
Record high73° (1981)
Record low-3° (2014)
Wed, 1849° / 24°0.03
49 °
Barr Lake, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high49°
Average low24°
Average precipitation0.03 in
Chance of precipitation12%
Record high73° (2008)
Record low-1° (2000)
Thu, 1949° / 24°0.04
49 °
Barr Lake, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high49°
Average low24°
Average precipitation0.04 in
Chance of precipitation20%
Record high73° (2007)
Record low4° (1961)
Fri, 2049° / 24°0.06
49 °
Barr Lake, Friday, 20 November
Climate normal for this date — 60-year average.
Average high49°
Average low24°
Average precipitation0.06 in
Chance of precipitation17%
Record high66° (2003)
Record low-4° (1975)
Sat, 2147° / 23°0.04
47 °
Barr Lake, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high47°
Average low23°
Average precipitation0.04 in
Chance of precipitation22%
Record high66° (2012)
Record low-3° (1975)
Sun, 2248° / 23°0.04
48 °
Barr Lake, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high48°
Average low23°
Average precipitation0.04 in
Chance of precipitation20%
Record high67° (2002)
Record low-5° (1975)
Mon, 2345° / 23°0.04
45 °
Barr Lake, Monday, 23 November
Climate normal for this date — 60-year average.
Average high45°
Average low23°
Average precipitation0.04 in
Chance of precipitation22%
Record high69° (2017)
Record low0° (1972)
Tue, 2447° / 22°0.03
47 °
Barr Lake, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high47°
Average low22°
Average precipitation0.03 in
Chance of precipitation17%
Record high68° (2017)
Record low-1° (1999)
Wed, 2546° / 23°0.02
46 °
Barr Lake, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high46°
Average low23°
Average precipitation0.02 in
Chance of precipitation20%
Record high69° (1990)
Record low-2° (1993)
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.