Monthly outlook for Niwot, CO: average high 58.8°, average low 35.3°. That is 5.3° above the climate normal for November. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 9 November (69.5°), the coolest 21 November (28.7°).
58.8°/35.3°
Average high / low
+5.3°
Above normal
2 / 3
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 November – 17 November
63.6°
50.4°
+7.3°
18 November – 27 November
50.8°
45.6°
+2.9°
28 November – 7 December
at normal
41.5°
—
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).
Mon, 0969° / 39°0
69 °
Niwot, Monday, 9 November
Clear. High 69°, low 39°.
Pressure30.06 inHg
Wind1.9 mph NE
Humidity30%
Visibility6.2 mi
Dew point25°
Tue, 1067° / 31°0
67 °
Niwot, Tuesday, 10 November
Overcast. High 67°, low 31°.
Pressure30.00 inHg
Wind3.4 mph E
Humidity28%
Visibility6.2 mi
Dew point27°
Wed, 1161° / 31°0
61 °
Niwot, Wednesday, 11 November
Clear. High 61°, low 31°.
Pressure30.21 inHg
Wind3.6 mph SE
Humidity32%
Visibility6.2 mi
Dew point23°
Thu, 1266° / 34°0
66 °
Niwot, Thursday, 12 November
Clear. High 66°, low 34°.
Pressure30.03 inHg
Wind3.2 mph E
Humidity30%
Visibility6.2 mi
Dew point25°
Fri, 1366° / 31°0
66 °
Niwot, Friday, 13 November
Overcast. High 66°, low 31°.
Pressure29.88 inHg
Wind3.8 mph W
Humidity29%
Visibility—
Dew point24°
Sat, 1467° / 40°0
67 °
Niwot, Saturday, 14 November
Partly cloudy. High 67°, low 40°.
Pressure29.88 inHg
Wind7.2 mph NW
Humidity15%
Visibility—
Dew point14°
Sun, 1562° / 44°0
62 °
Niwot, Sunday, 15 November
Overcast. High 62°, low 44°.
Pressure29.85 inHg
Wind6.1 mph W
Humidity14%
Visibility—
Dew point8°
Mon, 1664° / 43°0
64 °
Niwot, Monday, 16 November
Partly cloudy. High 64°, low 43°.
Pressure29.77 inHg
Wind7.9 mph SE
Humidity18%
Visibility—
Dew point16°
Tue, 1750° / 39°0.1
50 °
Niwot, Tuesday, 17 November
Light rain. High 50°, low 39°.
Pressure29.71 inHg
Wind6.1 mph E
Humidity52%
Visibility—
Dew point32°
Wed, 1854° / 34°0
54 °
Niwot, Wednesday, 18 November
Overcast. High 54°, low 34°.
Pressure29.71 inHg
Wind11.4 mph W
Humidity27%
Visibility—
Dew point17°
Thu, 1946° / 30°0
46 °
Niwot, Thursday, 19 November
Overcast. High 46°, low 30°.
Pressure29.83 inHg
Wind4.8 mph NW
Humidity44%
Visibility—
Dew point21°
Fri, 2037° / 31°0.08
37 °
Niwot, Friday, 20 November
Snow. High 37°, low 31°.
Pressure29.91 inHg
Wind7.1 mph NE
Humidity88%
Visibility—
Dew point33°
Sat, 2150° / 29°0
50 °
Niwot, Saturday, 21 November
Clear. High 50°, low 29°.
Pressure29.91 inHg
Wind8.9 mph W
Humidity26%
Visibility—
Dew point12°
Sun, 2258° / 33°0
58 °
Niwot, Sunday, 22 November
Overcast. High 58°, low 33°.
Pressure29.94 inHg
Wind8.5 mph W
Humidity29%
Visibility—
Dew point20°
Mon, 2359° / 38°0
59 °
Niwot, Monday, 23 November
Overcast. High 59°, low 38°.
Pressure29.71 inHg
Wind7.8 mph S
Humidity22%
Visibility—
Dew point16°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2446° / 23°0.03
46 °
Niwot, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high46°
Average low23°
Average precipitation0.03 in
Chance of precipitation17%
Record high66° (2017)
Record low1° (1993)
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)
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.