Monthly outlook for Jessum, CO: average high 64.5°, average low 44.6°. That is 4.8° above the climate normal for October. Precipitation is expected on 1 day (about 0.3 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 23 October (77.7°), the coolest 29 October (33.6°).
64.5°/44.6°
Average high / low
+4.8°
Above normal
1 / 3
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
63.4°
57.6°
+3.2°
1 November – 10 November
66.3°
52.8°
+7.5°
11 November – 20 November
at normal
49.2°
—
October records over 66 years
84.6°2 October 2024All-time high
-1.5°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Longmont (4 mi).
Fri, 2378° / 56°0
78 °
Jessum, Friday, 23 October
Mostly clear. High 78°, low 56°.
Pressure29.68 inHg
Wind1.7 mph SW
Humidity33%
Visibility6.2 mi
Dew point43°
Sat, 2458° / 48°0
58 °
Jessum, Saturday, 24 October
Overcast. High 58°, low 48°.
Pressure30.33 inHg
Wind3.1 mph N
Humidity50%
Visibility6.2 mi
Dew point33°
Sun, 2562° / 42°0.03
62 °
Jessum, Sunday, 25 October
Light rain. High 62°, low 42°.
Pressure30.12 inHg
Wind4.2 mph N
Humidity54%
Visibility6.2 mi
Dew point39°
Mon, 2653° / 45°0.27
53 °
Jessum, Monday, 26 October
Rain. High 53°, low 45°.
Pressure30.21 inHg
Wind5.7 mph NE
Humidity70%
Visibility—
Dew point41°
Tue, 2759° / 39°0
59 °
Jessum, Tuesday, 27 October
Mostly clear. High 59°, low 39°.
Pressure30.00 inHg
Wind4.2 mph N
Humidity66%
Visibility—
Dew point37°
Wed, 2867° / 44°0
67 °
Jessum, Wednesday, 28 October
Overcast. High 67°, low 44°.
Pressure29.91 inHg
Wind10.4 mph N
Humidity21%
Visibility—
Dew point20°
Thu, 2953° / 34°0
53 °
Jessum, Thursday, 29 October
Overcast. High 53°, low 34°.
Pressure30.27 inHg
Wind9.1 mph NW
Humidity51%
Visibility—
Dew point26°
Fri, 3069° / 44°0
69 °
Jessum, Friday, 30 October
Overcast. High 69°, low 44°.
Pressure29.74 inHg
Wind9.5 mph E
Humidity32%
Visibility—
Dew point31°
Sat, 3167° / 44°0
67 °
Jessum, Saturday, 31 October
Light rain. High 67°, low 44°.
Pressure29.71 inHg
Wind6.8 mph N
Humidity26%
Visibility—
Dew point27°
Sun, 0158° / 43°0
58 °
Jessum, Sunday, 1 November
Overcast. High 58°, low 43°.
Pressure30.00 inHg
Wind8.1 mph SE
Humidity44%
Visibility—
Dew point32°
Mon, 0267° / 39°0
67 °
Jessum, Monday, 2 November
Clear. High 67°, low 39°.
Pressure30.12 inHg
Wind7.7 mph NE
Humidity30%
Visibility—
Dew point27°
Tue, 0360° / 39°0
60 °
Jessum, Tuesday, 3 November
Overcast. High 60°, low 39°.
Pressure30.21 inHg
Wind3.1 mph N
Humidity26%
Visibility—
Dew point20°
Wed, 0472° / 44°0
72 °
Jessum, Wednesday, 4 November
Partly cloudy. High 72°, low 44°.
Pressure29.91 inHg
Wind7.1 mph SE
Humidity15%
Visibility—
Dew point15°
Thu, 0571° / 47°0
71 °
Jessum, Thursday, 5 November
Clear. High 71°, low 47°.
Pressure29.91 inHg
Wind5.8 mph E
Humidity30%
Visibility—
Dew point32°
Fri, 0671° / 47°0
71 °
Jessum, Friday, 6 November
Clear. High 71°, low 47°.
Pressure29.91 inHg
Wind6 mph NW
Humidity31%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0754° / 30°0.03
54 °
Jessum, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high54°
Average low30°
Average precipitation0.03 in
Chance of precipitation13%
Record high73° (2021)
Record low10° (1967)
Sun, 0853° / 30°0.04
53 °
Jessum, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high53°
Average low30°
Average precipitation0.04 in
Chance of precipitation20%
Record high72° (2006)
Record low10° (1993)
Mon, 0951° / 29°0.06
51 °
Jessum, Monday, 9 November
Climate normal for this date — 60-year average.
Average high51°
Average low29°
Average precipitation0.06 in
Chance of precipitation23%
Record high69° (2016)
Record low13° (1986)
Tue, 1051° / 27°0.03
51 °
Jessum, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high51°
Average low27°
Average precipitation0.03 in
Chance of precipitation20%
Record high69° (2005)
Record low8° (1986)
Wed, 1149° / 27°0.04
49 °
Jessum, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high49°
Average low27°
Average precipitation0.04 in
Chance of precipitation20%
Record high72° (2025)
Record low6° (1998)
Thu, 1250° / 26°0.04
50 °
Jessum, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high50°
Average low26°
Average precipitation0.04 in
Chance of precipitation23%
Record high70° (1989)
Record low1° (2014)
Fri, 1351° / 28°0.04
51 °
Jessum, Friday, 13 November
Climate normal for this date — 60-year average.
Average high51°
Average low28°
Average precipitation0.04 in
Chance of precipitation18%
Record high71° (2025)
Record low-12° (2014)
Sat, 1449° / 27°0.06
49 °
Jessum, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high49°
Average low27°
Average precipitation0.06 in
Chance of precipitation27%
Record high73° (2025)
Record low2° (2000)
Sun, 1549° / 26°0.04
49 °
Jessum, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high49°
Average low26°
Average precipitation0.04 in
Chance of precipitation15%
Record high73° (2016)
Record low-8° (1997)
Mon, 1651° / 26°0.02
51 °
Jessum, Monday, 16 November
Climate normal for this date — 60-year average.
Average high51°
Average low26°
Average precipitation0.02 in
Chance of precipitation10%
Record high76° (2016)
Record low-5° (2014)
Tue, 1749° / 26°0.04
49 °
Jessum, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high49°
Average low26°
Average precipitation0.04 in
Chance of precipitation18%
Record high70° (1999)
Record low2° (1980)
Wed, 1848° / 26°0.02
48 °
Jessum, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high48°
Average low26°
Average precipitation0.02 in
Chance of precipitation8%
Record high71° (2008)
Record low4° (1969)
Thu, 1948° / 26°0.04
48 °
Jessum, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high48°
Average low26°
Average precipitation0.04 in
Chance of precipitation18%
Record high73° (2007)
Record low0° (2022)
Fri, 2048° / 25°0.06
48 °
Jessum, Friday, 20 November
Climate normal for this date — 60-year average.
Average high48°
Average low25°
Average precipitation0.06 in
Chance of precipitation15%
Record high65° (2003)
Record low2° (2000)
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 Jessum, 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 Jessum, 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.