Monthly outlook for Ara, CO: average high 66.1°, average low 45.5°. That is 1.8° above the climate normal for October. Precipitation is expected on 3 days (about 2.1 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 8 October (83.5°), the coolest 16 October (30.2°).
66.1°/45.5°
Average high / low
+1.8°
Above normal
3 / 4
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
69.9°
63.6°
+3.5°
17 October – 26 October
59.8°
60.6°
-0.4°
27 October – 5 November
at normal
53.6°
—
October records over 66 years
85.1°2 October 2024All-time high
-5.8°30 October 1993All-time low
Climate normals and records are computed from the nearest reference point — Boulder (0 mi).
Thu, 0883° / 53°0
83 °
Ara, Thursday, 8 October
Light rain. High 83°, low 53°.
Pressure29.94 inHg
Wind6 mph E
Humidity17%
Visibility6.2 mi
Dew point27°
Fri, 0982° / 47°0.02
82 °
Ara, Friday, 9 October
Light rain. High 82°, low 47°.
Pressure29.77 inHg
Wind5.4 mph E
Humidity17%
Visibility6.2 mi
Dew point28°
Sat, 1078° / 49°0.03
78 °
Ara, Saturday, 10 October
Light rain. High 78°, low 49°.
Pressure29.62 inHg
Wind6.8 mph SW
Humidity18%
Visibility6.2 mi
Dew point31°
Sun, 1172° / 52°0.01
72 °
Ara, Sunday, 11 October
Light rain. High 72°, low 52°.
Pressure29.74 inHg
Wind5.8 mph SE
Humidity29%
Visibility6.2 mi
Dew point37°
Mon, 1269° / 44°0
69 °
Ara, Monday, 12 October
Clear. High 69°, low 44°.
Pressure29.88 inHg
Wind6 mph NE
Humidity48%
Visibility—
Dew point39°
Tue, 1366° / 44°0
66 °
Ara, Tuesday, 13 October
Overcast. High 66°, low 44°.
Pressure30.00 inHg
Wind6.5 mph E
Humidity51%
Visibility—
Dew point42°
Wed, 1466° / 57°0.01
66 °
Ara, Wednesday, 14 October
Light rain. High 66°, low 57°.
Pressure29.50 inHg
Wind5.9 mph NW
Humidity53%
Visibility—
Dew point46°
Thu, 1555° / 36°0.52
55 °
Ara, Thursday, 15 October
Snow. High 55°, low 36°.
Pressure29.74 inHg
Wind14.7 mph NE
Humidity69%
Visibility—
Dew point38°
Fri, 1648° / 30°0.01
48 °
Ara, Friday, 16 October
Light snow. High 48°, low 30°.
Pressure30.24 inHg
Wind5.1 mph W
Humidity70%
Visibility—
Dew point32°
Sat, 1749° / 31°0.03
49 °
Ara, Saturday, 17 October
Light snow. High 49°, low 31°.
Pressure30.15 inHg
Wind6.3 mph W
Humidity65%
Visibility—
Dew point30°
Sun, 1857° / 35°0
57 °
Ara, Sunday, 18 October
Clear. High 57°, low 35°.
Pressure30.06 inHg
Wind7.6 mph W
Humidity44%
Visibility—
Dew point29°
Mon, 1966° / 44°0
66 °
Ara, Monday, 19 October
Clear. High 66°, low 44°.
Pressure29.97 inHg
Wind8.1 mph W
Humidity31%
Visibility—
Dew point30°
Tue, 2071° / 50°0
71 °
Ara, Tuesday, 20 October
Mostly clear. High 71°, low 50°.
Pressure30.00 inHg
Wind8 mph W
Humidity31%
Visibility—
Dew point34°
Wed, 2161° / 47°0.55
61 °
Ara, Wednesday, 21 October
Rain. High 61°, low 47°.
Pressure30.06 inHg
Wind6.6 mph NW
Humidity49%
Visibility—
Dew point38°
Thu, 2254° / 53°0.89
54 °
Ara, Thursday, 22 October
Rain. High 54°, low 53°.
Pressure30.00 inHg
Wind6 mph E
Humidity96%
Visibility—
Dew point52°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2360° / 35°0.04
60 °
Ara, Friday, 23 October
Climate normal for this date — 60-year average.
Average high60°
Average low35°
Average precipitation0.04 in
Chance of precipitation22%
Record high80° (2003)
Record low14° (2020)
Sat, 2459° / 35°0.05
59 °
Ara, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high59°
Average low35°
Average precipitation0.05 in
Chance of precipitation22%
Record high77° (2011)
Record low16° (1975)
Sun, 2560° / 34°0.06
60 °
Ara, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high60°
Average low34°
Average precipitation0.06 in
Chance of precipitation20%
Record high77° (2017)
Record low4° (1975)
Mon, 2658° / 34°0.08
58 °
Ara, Monday, 26 October
Climate normal for this date — 60-year average.
Average high58°
Average low34°
Average precipitation0.08 in
Chance of precipitation22%
Record high75° (1977)
Record low5° (2020)
Tue, 2756° / 33°0.04
56 °
Ara, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high56°
Average low33°
Average precipitation0.04 in
Chance of precipitation23%
Record high79° (2016)
Record low0° (2020)
Wed, 2857° / 32°0.06
57 °
Ara, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high57°
Average low32°
Average precipitation0.06 in
Chance of precipitation22%
Record high78° (2024)
Record low8° (1976)
Thu, 2956° / 32°0.07
56 °
Ara, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high56°
Average low32°
Average precipitation0.07 in
Chance of precipitation35%
Record high76° (1968)
Record low5° (1993)
Fri, 3053° / 30°0.06
53 °
Ara, Friday, 30 October
Climate normal for this date — 60-year average.
Average high53°
Average low30°
Average precipitation0.06 in
Chance of precipitation30%
Record high74° (1968)
Record low-6° (1993)
Sat, 3153° / 30°0.05
53 °
Ara, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high53°
Average low30°
Average precipitation0.05 in
Chance of precipitation28%
Record high74° (2016)
Record low3° (1991)
Sun, 0152° / 30°0.07
52 °
Ara, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low30°
Average precipitation0.07 in
Chance of precipitation33%
Record high71° (2008)
Record low6° (1979)
Mon, 0251° / 28°0.08
51 °
Ara, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low28°
Average precipitation0.08 in
Chance of precipitation27%
Record high78° (2025)
Record low3° (1991)
Tue, 0352° / 28°0.06
52 °
Ara, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high52°
Average low28°
Average precipitation0.06 in
Chance of precipitation25%
Record high70° (2020)
Record low-12° (1991)
Wed, 0453° / 28°0.04
53 °
Ara, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low28°
Average precipitation0.04 in
Chance of precipitation20%
Record high73° (2025)
Record low4° (2002)
Thu, 0553° / 29°0.03
53 °
Ara, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low29°
Average precipitation0.03 in
Chance of precipitation20%
Record high71° (2023)
Record low2° (1967)
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 Ara, 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 Ara, 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.