Monthly outlook for Niwot, CO: average high 52.9°, average low 31.3°. That is 2.4° above the climate normal for November. Precipitation is expected on 3 days (about 1.1 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 10 November (70.8°), the coolest 21 November (14.6°).
52.9°/31.3°
Average high / low
+2.4°
Above normal
3 / 3
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 November – 18 November
63.7°
49.9°
+7.7°
19 November – 28 November
35.1°
44.9°
-5.5°
29 November – 8 December
at normal
41.3°
—
November records over 66 years
77.7°2 November 2025All-time high
-12.3°13 November 2014All-time low
Climate normals and records are computed from the nearest reference point — Longmont (6 mi).
Tue, 1071° / 39°0
71 °
Niwot, Tuesday, 10 November
Overcast. High 71°, low 39°.
Pressure30.00 inHg
Wind3.1 mph E
Humidity28%
Visibility6.2 mi
Dew point26°
Wed, 1162° / 31°0
62 °
Niwot, Wednesday, 11 November
Overcast. High 62°, low 31°.
Pressure30.15 inHg
Wind5.3 mph SE
Humidity32%
Visibility6.2 mi
Dew point22°
Thu, 1265° / 33°0
65 °
Niwot, Thursday, 12 November
Clear. High 65°, low 33°.
Pressure30.03 inHg
Wind3.1 mph E
Humidity30%
Visibility6.2 mi
Dew point25°
Fri, 1363° / 35°0
63 °
Niwot, Friday, 13 November
Overcast. High 63°, low 35°.
Pressure29.85 inHg
Wind2.8 mph W
Humidity34%
Visibility—
Dew point27°
Sat, 1461° / 34°0
61 °
Niwot, Saturday, 14 November
Overcast. High 61°, low 34°.
Pressure29.68 inHg
Wind5.8 mph W
Humidity35%
Visibility—
Dew point27°
Sun, 1568° / 42°0
68 °
Niwot, Sunday, 15 November
Clear. High 68°, low 42°.
Pressure29.77 inHg
Wind7 mph W
Humidity14%
Visibility—
Dew point11°
Mon, 1665° / 43°0
65 °
Niwot, Monday, 16 November
Clear. High 65°, low 43°.
Pressure29.80 inHg
Wind6.9 mph E
Humidity17%
Visibility—
Dew point15°
Tue, 1751° / 38°0
51 °
Niwot, Tuesday, 17 November
Overcast. High 51°, low 38°.
Pressure30.12 inHg
Wind5.7 mph E
Humidity50%
Visibility—
Dew point30°
Wed, 1861° / 35°0
61 °
Niwot, Wednesday, 18 November
Partly cloudy. High 61°, low 35°.
Pressure29.62 inHg
Wind13 mph N
Humidity48%
Visibility—
Dew point29°
Thu, 1942° / 24°0.78
42 °
Niwot, Thursday, 19 November
Snow. High 42°, low 24°.
Pressure29.83 inHg
Wind6 mph NE
Humidity99%
Visibility—
Dew point32°
Fri, 2030° / 22°0.25
30 °
Niwot, Friday, 20 November
Snow. High 30°, low 22°.
Pressure30.18 inHg
Wind4.6 mph E
Humidity98%
Visibility—
Dew point28°
Sat, 2130° / 15°0.09
30 °
Niwot, Saturday, 21 November
Light snow. High 30°, low 15°.
Pressure30.27 inHg
Wind7.4 mph W
Humidity88%
Visibility—
Dew point25°
Sun, 2234° / 15°0
34 °
Niwot, Sunday, 22 November
Overcast. High 34°, low 15°.
Pressure29.97 inHg
Wind7.2 mph W
Humidity94%
Visibility—
Dew point31°
Mon, 2334° / 22°0
34 °
Niwot, Monday, 23 November
Light snow. High 34°, low 22°.
Pressure30.21 inHg
Wind6.1 mph SW
Humidity87%
Visibility—
Dew point28°
Tue, 2441° / 30°0
41 °
Niwot, Tuesday, 24 November
Overcast. High 41°, low 30°.
Pressure30.12 inHg
Wind7.1 mph W
Humidity92%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2545° / 23°0.02
45 °
Niwot, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high45°
Average low23°
Average precipitation0.02 in
Chance of precipitation18%
Record high66° (1990)
Record low-3° (1993)
Thu, 2642° / 22°0.07
42 °
Niwot, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high42°
Average low22°
Average precipitation0.07 in
Chance of precipitation27%
Record high67° (2017)
Record low4° (1975)
Fri, 2740° / 20°0.06
40 °
Niwot, Friday, 27 November
Climate normal for this date — 60-year average.
Average high40°
Average low20°
Average precipitation0.06 in
Chance of precipitation30%
Record high68° (2017)
Record low2° (1976)
Sat, 2842° / 20°0.03
42 °
Niwot, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high42°
Average low20°
Average precipitation0.03 in
Chance of precipitation17%
Record high62° (2021)
Record low-10° (1976)
Sun, 2941° / 20°0.03
41 °
Niwot, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high41°
Average low20°
Average precipitation0.03 in
Chance of precipitation17%
Record high66° (2021)
Record low0° (1979)
Mon, 3041° / 20°0.02
41 °
Niwot, Monday, 30 November
Climate normal for this date — 60-year average.
Average high41°
Average low20°
Average precipitation0.02 in
Chance of precipitation17%
Record high61° (1995)
Record low-7° (2006)
Tue, 0142° / 20°0.02
42 °
Niwot, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high42°
Average low20°
Average precipitation0.02 in
Chance of precipitation10%
Record high70° (2021)
Record low-1° (1985)
Wed, 0243° / 21°0.02
43 °
Niwot, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high43°
Average low21°
Average precipitation0.02 in
Chance of precipitation12%
Record high63° (2021)
Record low-3° (1985)
Thu, 0342° / 21°0.03
42 °
Niwot, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high42°
Average low21°
Average precipitation0.03 in
Chance of precipitation15%
Record high62° (2017)
Record low-1° (1978)
Fri, 0443° / 21°0.02
43 °
Niwot, Friday, 4 December
Climate normal for this date — 60-year average.
Average high43°
Average low21°
Average precipitation0.02 in
Chance of precipitation10%
Record high61° (1998)
Record low0° (2009)
Sat, 0542° / 20°0.03
42 °
Niwot, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high42°
Average low20°
Average precipitation0.03 in
Chance of precipitation15%
Record high65° (2012)
Record low-12° (2013)
Sun, 0639° / 20°0.03
39 °
Niwot, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high39°
Average low20°
Average precipitation0.03 in
Chance of precipitation18%
Record high56° (2003)
Record low-16° (1972)
Mon, 0740° / 20°0.04
40 °
Niwot, Monday, 7 December
Climate normal for this date — 60-year average.
Average high40°
Average low20°
Average precipitation0.04 in
Chance of precipitation17%
Record high59° (1987)
Record low-4° (1972)
Tue, 0840° / 19°0.04
40 °
Niwot, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high40°
Average low19°
Average precipitation0.04 in
Chance of precipitation23%
Record high58° (1981)
Record low-14° (1978)
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 Niwot, 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 Niwot, 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.