Monthly outlook for Iris, CO: average high 54.4°, average low 33.1°. That is 0.5° below the climate normal for October. Precipitation is expected on 8 days (about 1.1 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 7 October (64.6°), the coolest 16 October (20.3°).
54.4°/33.1°
Average high / low
−0.5°
Below normal
8 / 3
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
56.6°
56.5°
+0.1°
17 October – 26 October
50.6°
52°
-0.8°
27 October – 5 November
at normal
46°
—
October records over 66 years
75.6°1 October 2015All-time high
-14.1°31 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Sillsville (4 mi).
Thu, 0863° / 37°0.03
63 °
Iris, Thursday, 8 October
Light rain. High 63°, low 37°.
Pressure30.15 inHg
Wind1.3 mph N
Humidity39%
Visibility6.2 mi
Dew point35°
Fri, 0963° / 38°0.03
63 °
Iris, Friday, 9 October
Light rain. High 63°, low 38°.
Pressure30.00 inHg
Wind1.8 mph NE
Humidity39%
Visibility6.2 mi
Dew point34°
Sat, 1057° / 38°0.1
57 °
Iris, Saturday, 10 October
Light rain. High 57°, low 38°.
Pressure29.85 inHg
Wind5.2 mph NE
Humidity43%
Visibility6.2 mi
Dew point36°
Sun, 1163° / 39°0.07
63 °
Iris, Sunday, 11 October
Light rain. High 63°, low 39°.
Pressure29.85 inHg
Wind6.4 mph SE
Humidity57%
Visibility—
Dew point38°
Mon, 1260° / 37°0
60 °
Iris, Monday, 12 October
Clear. High 60°, low 37°.
Pressure29.97 inHg
Wind11.1 mph N
Humidity36%
Visibility—
Dew point27°
Tue, 1363° / 39°0.03
63 °
Iris, Tuesday, 13 October
Light rain. High 63°, low 39°.
Pressure29.88 inHg
Wind4.9 mph SE
Humidity39%
Visibility—
Dew point29°
Wed, 1448° / 39°0.47
48 °
Iris, Wednesday, 14 October
Rain. High 48°, low 39°.
Pressure29.74 inHg
Wind18.2 mph W
Humidity64%
Visibility—
Dew point35°
Thu, 1541° / 27°0.08
41 °
Iris, Thursday, 15 October
Snow. High 41°, low 27°.
Pressure29.97 inHg
Wind27 mph W
Humidity57%
Visibility—
Dew point26°
Fri, 1644° / 20°0
44 °
Iris, Friday, 16 October
Clear. High 44°, low 20°.
Pressure30.42 inHg
Wind5.1 mph NW
Humidity20%
Visibility—
Dew point-3°
Sat, 1752° / 24°0
52 °
Iris, Saturday, 17 October
Overcast. High 52°, low 24°.
Pressure30.21 inHg
Wind5.1 mph SW
Humidity22%
Visibility—
Dew point7°
Sun, 1852° / 28°0
52 °
Iris, Sunday, 18 October
Partly cloudy. High 52°, low 28°.
Pressure30.09 inHg
Wind13.7 mph W
Humidity33%
Visibility—
Dew point16°
Mon, 1951° / 28°0
51 °
Iris, Monday, 19 October
Clear. High 51°, low 28°.
Pressure30.06 inHg
Wind20.9 mph W
Humidity36%
Visibility—
Dew point19°
Tue, 2049° / 29°0.09
49 °
Iris, Tuesday, 20 October
Light rain. High 49°, low 29°.
Pressure30.15 inHg
Wind20.2 mph W
Humidity32%
Visibility—
Dew point16°
Wed, 2149° / 35°0.09
49 °
Iris, Wednesday, 21 October
Light rain. High 49°, low 35°.
Pressure30.24 inHg
Wind8.7 mph NW
Humidity58%
Visibility—
Dew point28°
Thu, 2251° / 34°0.04
51 °
Iris, Thursday, 22 October
Light rain. High 51°, low 34°.
Pressure30.09 inHg
Wind16.8 mph NW
Humidity54%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2352° / 29°0.03
52 °
Iris, Friday, 23 October
Climate normal for this date — 60-year average.
Average high52°
Average low29°
Average precipitation0.03 in
Chance of precipitation17%
Record high67° (2003)
Record low8° (1990)
Sat, 2451° / 28°0.03
51 °
Iris, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high51°
Average low28°
Average precipitation0.03 in
Chance of precipitation23%
Record high65° (2016)
Record low13° (1990)
Sun, 2551° / 28°0.04
51 °
Iris, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high51°
Average low28°
Average precipitation0.04 in
Chance of precipitation28%
Record high67° (2021)
Record low10° (1969)
Mon, 2649° / 27°0.07
49 °
Iris, Monday, 26 October
Climate normal for this date — 60-year average.
Average high49°
Average low27°
Average precipitation0.07 in
Chance of precipitation28%
Record high64° (1977)
Record low-4° (1997)
Tue, 2749° / 26°0.03
49 °
Iris, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high49°
Average low26°
Average precipitation0.03 in
Chance of precipitation22%
Record high66° (2016)
Record low-4° (1997)
Wed, 2849° / 26°0.06
49 °
Iris, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high49°
Average low26°
Average precipitation0.06 in
Chance of precipitation23%
Record high64° (2016)
Record low-1° (1970)
Thu, 2947° / 24°0.06
47 °
Iris, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high47°
Average low24°
Average precipitation0.06 in
Chance of precipitation35%
Record high63° (1964)
Record low4° (1980)
Fri, 3046° / 23°0.03
46 °
Iris, Friday, 30 October
Climate normal for this date — 60-year average.
Average high46°
Average low23°
Average precipitation0.03 in
Chance of precipitation27%
Record high64° (2016)
Record low-6° (2023)
Sat, 3145° / 23°0.05
45 °
Iris, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high45°
Average low23°
Average precipitation0.05 in
Chance of precipitation30%
Record high60° (2008)
Record low-14° (2019)
Sun, 0144° / 24°0.04
44 °
Iris, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high44°
Average low24°
Average precipitation0.04 in
Chance of precipitation17%
Record high59° (2014)
Record low4° (1991)
Mon, 0245° / 22°0.04
45 °
Iris, Monday, 2 November
Climate normal for this date — 60-year average.
Average high45°
Average low22°
Average precipitation0.04 in
Chance of precipitation22%
Record high59° (2015)
Record low-5° (1996)
Tue, 0345° / 21°0.04
45 °
Iris, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high45°
Average low21°
Average precipitation0.04 in
Chance of precipitation15%
Record high57° (2016)
Record low-13° (2011)
Wed, 0445° / 21°0.02
45 °
Iris, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high45°
Average low21°
Average precipitation0.02 in
Chance of precipitation18%
Record high60° (1983)
Record low-10° (1970)
Thu, 0545° / 21°0.03
45 °
Iris, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high45°
Average low21°
Average precipitation0.03 in
Chance of precipitation20%
Record high57° (1987)
Record low-5° (1974)
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 Iris, 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 Iris, 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.