Monthly outlook for Sibley, IA: average high 58.6°, average low 45.2°. That is 3.3° above the climate normal for October. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 22 October (74.4°), the coolest 30 October (33.5°).
58.6°/45.2°
Average high / low
+3.3°
Above normal
3 / 4
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
58.3°
54.5°
+2.1°
1 November – 10 November
59.1°
48.6°
+5.9°
11 November – 20 November
at normal
43°
—
October records over 66 years
89.6°3 October 2025All-time high
13.8°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Ashton (7 mi).
Fri, 2372° / 53°0
72 °
Sibley, Friday, 23 October
Overcast. High 72°, low 53°.
Pressure30.06 inHg
Wind14.2 mph SE
Humidity71%
Visibility6.2 mi
Dew point53°
Sat, 2468° / 53°0.19
68 °
Sibley, Saturday, 24 October
Rain. High 68°, low 53°.
Pressure30.12 inHg
Wind12.1 mph SW
Humidity56%
Visibility6.2 mi
Dew point52°
Sun, 2553° / 48°0
53 °
Sibley, Sunday, 25 October
Overcast. High 53°, low 48°.
Pressure30.42 inHg
Wind8.3 mph NE
Humidity56%
Visibility6.2 mi
Dew point36°
Mon, 2654° / 45°0.24
54 °
Sibley, Monday, 26 October
Light rain. High 54°, low 45°.
Pressure30.36 inHg
Wind14.8 mph NE
Humidity65%
Visibility—
Dew point39°
Tue, 2759° / 50°0.11
59 °
Sibley, Tuesday, 27 October
Light rain. High 59°, low 50°.
Pressure30.12 inHg
Wind12.1 mph S
Humidity66%
Visibility—
Dew point46°
Wed, 2856° / 46°0
56 °
Sibley, Wednesday, 28 October
Overcast. High 56°, low 46°.
Pressure29.94 inHg
Wind17.1 mph S
Humidity71%
Visibility—
Dew point44°
Thu, 2945° / 34°0
45 °
Sibley, Thursday, 29 October
Clear. High 45°, low 34°.
Pressure30.36 inHg
Wind20.1 mph NW
Humidity51%
Visibility—
Dew point25°
Fri, 3050° / 34°0
50 °
Sibley, Friday, 30 October
Overcast. High 50°, low 34°.
Pressure30.15 inHg
Wind12.5 mph S
Humidity47%
Visibility—
Dew point26°
Sat, 3151° / 43°0
51 °
Sibley, Saturday, 31 October
Light rain. High 51°, low 43°.
Pressure29.80 inHg
Wind11.5 mph S
Humidity93%
Visibility—
Dew point46°
Sun, 0159° / 49°0
59 °
Sibley, Sunday, 1 November
Overcast. High 59°, low 49°.
Pressure29.97 inHg
Wind9.8 mph NW
Humidity49%
Visibility—
Dew point39°
Mon, 0260° / 43°0
60 °
Sibley, Monday, 2 November
Clear. High 60°, low 43°.
Pressure30.21 inHg
Wind9.7 mph S
Humidity37%
Visibility—
Dew point29°
Tue, 0359° / 45°0
59 °
Sibley, Tuesday, 3 November
Clear. High 59°, low 45°.
Pressure30.24 inHg
Wind9.4 mph N
Humidity39%
Visibility—
Dew point31°
Wed, 0459° / 42°0
59 °
Sibley, Wednesday, 4 November
Clear. High 59°, low 42°.
Pressure30.15 inHg
Wind12.3 mph S
Humidity41%
Visibility—
Dew point31°
Thu, 0552° / 46°0
52 °
Sibley, Thursday, 5 November
Overcast. High 52°, low 46°.
Pressure29.94 inHg
Wind14.7 mph S
Humidity71%
Visibility—
Dew point43°
Fri, 0666° / 48°0
66 °
Sibley, Friday, 6 November
Clear. High 66°, low 48°.
Pressure29.97 inHg
Wind6.5 mph SE
Humidity51%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0749° / 32°0.02
49 °
Sibley, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.02 in
Chance of precipitation13%
Record high72° (2001)
Record low-15° (1991)
Sun, 0849° / 32°0.04
49 °
Sibley, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.04 in
Chance of precipitation13%
Record high76° (1999)
Record low-2° (1991)
Mon, 0947° / 32°0.15
47 °
Sibley, Monday, 9 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.15 in
Chance of precipitation23%
Record high71° (1999)
Record low13° (2018)
Tue, 1044° / 29°0.09
44 °
Sibley, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high44°
Average low29°
Average precipitation0.09 in
Chance of precipitation28%
Record high69° (2012)
Record low9° (2018)
Wed, 1142° / 27°0.05
42 °
Sibley, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high42°
Average low27°
Average precipitation0.05 in
Chance of precipitation18%
Record high64° (1964)
Record low3° (1986)
Thu, 1242° / 27°0.06
42 °
Sibley, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high42°
Average low27°
Average precipitation0.06 in
Chance of precipitation23%
Record high66° (1999)
Record low0° (1966)
Fri, 1344° / 28°0.06
44 °
Sibley, Friday, 13 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.06 in
Chance of precipitation25%
Record high71° (1999)
Record low2° (1986)
Sat, 1444° / 29°0.03
44 °
Sibley, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high44°
Average low29°
Average precipitation0.03 in
Chance of precipitation13%
Record high69° (2025)
Record low8° (2014)
Sun, 1545° / 28°0.06
45 °
Sibley, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.06 in
Chance of precipitation17%
Record high67° (2001)
Record low6° (2000)
Mon, 1644° / 28°0.1
44 °
Sibley, Monday, 16 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.1 in
Chance of precipitation20%
Record high70° (2001)
Record low-2° (2014)
Tue, 1743° / 29°0.06
43 °
Sibley, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.06 in
Chance of precipitation22%
Record high65° (2001)
Record low4° (2014)
Wed, 1843° / 28°0.07
43 °
Sibley, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high43°
Average low28°
Average precipitation0.07 in
Chance of precipitation20%
Record high70° (1999)
Record low2° (2014)
Thu, 1942° / 28°0.09
42 °
Sibley, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high42°
Average low28°
Average precipitation0.09 in
Chance of precipitation28%
Record high60° (2003)
Record low8° (1997)
Fri, 2040° / 26°0.07
40 °
Sibley, Friday, 20 November
Climate normal for this date — 60-year average.
Average high40°
Average low26°
Average precipitation0.07 in
Chance of precipitation17%
Record high61° (1990)
Record low5° (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 Sibley, IA 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 Sibley, IA 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.