Monthly outlook for Eureka, CO: average high 35.8°, average low 19.7°. That is 5.7° below the climate normal for October. Precipitation is expected on 6 days (about 2.1 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 17 October (54.8°), the coolest 30 October (14.1°).
35.8°/19.7°
Average high / low
−5.7°
Below normal
6 / 5
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
39.3°
47.7°
-4.7°
27 October – 5 November
30.1°
43.1°
-7.2°
6 November – 15 November
at normal
40.2°
—
October records over 66 years
69.1°6 October 1979All-time high
-10.7°15 October 2018All-time low
Climate normals and records are computed from the nearest reference point — Silverton (7 mi).
Sun, 1845° / 23°0.03
45 °
Eureka, Sunday, 18 October
Snow. High 45°, low 23°.
Pressure30.27 inHg
Wind1.8 mph SE
Humidity74%
Visibility6.2 mi
Dew point19°
Mon, 1939° / 23°0.01
39 °
Eureka, Monday, 19 October
Light snow. High 39°, low 23°.
Pressure30.21 inHg
Wind6.1 mph S
Humidity81%
Visibility6.2 mi
Dew point28°
Tue, 2039° / 16°0
39 °
Eureka, Tuesday, 20 October
Overcast. High 39°, low 16°.
Pressure30.24 inHg
Wind6.6 mph S
Humidity80%
Visibility6.2 mi
Dew point28°
Wed, 2141° / 19°0.05
41 °
Eureka, Wednesday, 21 October
Snow. High 41°, low 19°.
Pressure30.30 inHg
Wind6.9 mph S
Humidity72%
Visibility5.5 mi
Dew point32°
Thu, 2240° / 34°0.28
40 °
Eureka, Thursday, 22 October
Snow. High 40°, low 34°.
Pressure30.27 inHg
Wind8.5 mph S
Humidity83%
Visibility—
Dew point35°
Fri, 2335° / 20°0.07
35 °
Eureka, Friday, 23 October
Snow. High 35°, low 20°.
Pressure30.03 inHg
Wind10.6 mph S
Humidity90%
Visibility—
Dew point29°
Sat, 2433° / 19°0.03
33 °
Eureka, Saturday, 24 October
Light snow. High 33°, low 19°.
Pressure30.12 inHg
Wind8.4 mph S
Humidity77%
Visibility—
Dew point22°
Sun, 2532° / 20°0.04
32 °
Eureka, Sunday, 25 October
Light snow. High 32°, low 20°.
Pressure30.12 inHg
Wind5.6 mph S
Humidity67%
Visibility—
Dew point19°
Mon, 2634° / 22°0
34 °
Eureka, Monday, 26 October
Overcast. High 34°, low 22°.
Pressure30.18 inHg
Wind6.9 mph S
Humidity65%
Visibility—
Dew point21°
Tue, 2732° / 27°1.43
32 °
Eureka, Tuesday, 27 October
Snow. High 32°, low 27°.
Pressure30.06 inHg
Wind14.1 mph SW
Humidity101%
Visibility—
Dew point31°
Wed, 2829° / 14°0.06
29 °
Eureka, Wednesday, 28 October
Light snow. High 29°, low 14°.
Pressure30.12 inHg
Wind14.9 mph SW
Humidity93%
Visibility—
Dew point22°
Thu, 2930° / 15°0
30 °
Eureka, Thursday, 29 October
Overcast. High 30°, low 15°.
Pressure30.00 inHg
Wind7.6 mph S
Humidity77%
Visibility—
Dew point20°
Fri, 3026° / 14°0.06
26 °
Eureka, Friday, 30 October
Light snow. High 26°, low 14°.
Pressure29.83 inHg
Wind11.6 mph SW
Humidity75%
Visibility—
Dew point19°
Sat, 3131° / 14°0.01
31 °
Eureka, Saturday, 31 October
Light snow. High 31°, low 14°.
Pressure30.03 inHg
Wind10.6 mph S
Humidity64%
Visibility—
Dew point19°
Sun, 0132° / 19°0
32 °
Eureka, Sunday, 1 November
Mostly clear. High 32°, low 19°.
Pressure30.03 inHg
Wind11.5 mph S
Humidity70%
Visibility—
Dew point21°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0243° / 23°0.08
43 °
Eureka, Monday, 2 November
Climate normal for this date — 60-year average.
Average high43°
Average low23°
Average precipitation0.08 in
Chance of precipitation22%
Record high61° (2025)
Record low-1° (2019)
Tue, 0343° / 23°0.09
43 °
Eureka, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high43°
Average low23°
Average precipitation0.09 in
Chance of precipitation25%
Record high55° (2010)
Record low2° (1982)
Wed, 0443° / 22°0.04
43 °
Eureka, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high43°
Average low22°
Average precipitation0.04 in
Chance of precipitation23%
Record high58° (2009)
Record low2° (1992)
Thu, 0543° / 23°0.06
43 °
Eureka, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high43°
Average low23°
Average precipitation0.06 in
Chance of precipitation25%
Record high55° (2020)
Record low-1° (2024)
Fri, 0642° / 23°0.06
42 °
Eureka, Friday, 6 November
Climate normal for this date — 60-year average.
Average high42°
Average low23°
Average precipitation0.06 in
Chance of precipitation22%
Record high56° (2010)
Record low-3° (2011)
Sat, 0743° / 23°0.07
43 °
Eureka, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high43°
Average low23°
Average precipitation0.07 in
Chance of precipitation22%
Record high57° (2006)
Record low1° (2015)
Sun, 0841° / 23°0.12
41 °
Eureka, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high41°
Average low23°
Average precipitation0.12 in
Chance of precipitation32%
Record high56° (2006)
Record low1° (2018)
Mon, 0940° / 22°0.15
40 °
Eureka, Monday, 9 November
Climate normal for this date — 60-year average.
Average high40°
Average low22°
Average precipitation0.15 in
Chance of precipitation35%
Record high59° (2019)
Record low-9° (1977)
Tue, 1040° / 21°0.07
40 °
Eureka, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high40°
Average low21°
Average precipitation0.07 in
Chance of precipitation32%
Record high56° (1999)
Record low-3° (2022)
Wed, 1140° / 20°0.12
40 °
Eureka, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high40°
Average low20°
Average precipitation0.12 in
Chance of precipitation28%
Record high58° (1989)
Record low-7° (2022)
Thu, 1240° / 20°0.13
40 °
Eureka, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high40°
Average low20°
Average precipitation0.13 in
Chance of precipitation30%
Record high58° (1999)
Record low-6° (2010)
Fri, 1339° / 22°0.07
39 °
Eureka, Friday, 13 November
Climate normal for this date — 60-year average.
Average high39°
Average low22°
Average precipitation0.07 in
Chance of precipitation30%
Record high58° (1999)
Record low-2° (2006)
Sat, 1439° / 20°0.06
39 °
Eureka, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high39°
Average low20°
Average precipitation0.06 in
Chance of precipitation30%
Record high58° (1999)
Record low0° (2000)
Sun, 1538° / 18°0.08
38 °
Eureka, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high38°
Average low18°
Average precipitation0.08 in
Chance of precipitation28%
Record high57° (2016)
Record low-8° (2022)
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 Eureka, 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 Eureka, 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.