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Jefferson, CO

41°F
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Jefferson

Colorado

41°
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Jefferson, CO Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Today Hourly 10-Day Radar MinuteCast®

Monthly

Air Quality Health & Activities

October

January February March April May June July August September October November December

2026

2025 2026 2027

10-Day

S
M
T
W
T
F
S
27
Sun and clouds
62°
36°
28
A couple of morning showers
61°
36°
29
Sun and clouds
52°
30°
30
Plenty of sun
56°
30°
1
Mostly sunny
57°
31°
2
Plenty of sunshine
61°
33°
3
Plenty of sunshine
61°
33°
4
Plenty of sunshine
60°
34°
5
Mostly sunny
60°
35°
6
Partly sunny
59°
34°
7
Partly sunny
59°
34°
8
Mostly sunny
54°
33°
9
Sunshine and a few clouds
54°
29°
10
Partly sunny
48°
24°
11
Plenty of sun
46°
22°
12
Sunny
50°
24°
13
Cloudy
45°
25°
14
Decreasing clouds
45°
25°
15
Brilliant sunshine
55°
28°
16
Mostly sunny
56°
28°
17
Partly sunny
49°
29°
18
Cloudy
44°
29°
19
Rain and ice in the morning
44°
30°
20
Still cloudy
43°
30°
21
Rather cloudy
45°
29°
22
A little afternoon rain
48°
29°
23
Times of clouds and sun
43°
21°
24
Partly sunny
43°
16°
25
Snow and rain in the p.m.
42°
16°
26
Sunshine and a few clouds
39°
21°
27
Scintillating sunshine
45°
20°
28
Clouds and sun
49°
22°
29
Partial sunshine
44°
16°
30
On-and-off snow
38°
14°
31
Intermittent snow
36°
15°

Temperature Graph

°F
70° 58° 46° 34° 22° Oct
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

October Weather in Jefferson

Jefferson's October 2026 forecast shows daily high temperatures ranging from 36° to 62°, with overnight lows between 14° and 36°. The average high for October is 50° with an average low of 27°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Jefferson. See also: November | December | January.

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World North America United States Colorado Jefferson

Weather Near Jefferson:

  • Boulder, CO
  • Denver, CO
  • Fort Collins, CO
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