Monthly outlook for Sibley, IA: average high 59.4°, average low 47°. That is 1.8° above the climate normal for October. Precipitation is expected on 2 days (about 1.4 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 20 October (65.7°), the coolest 17 October (33.9°).
59.4°/47°
Average high / low
+1.8°
Above normal
2 / 4
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
59.4°
57.4°
+1.1°
25 October – 3 November
59.4°
52.6°
+3.7°
4 November – 13 November
at normal
46.4°
—
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, 1649° / 36°0.03
49 °
Sibley, Friday, 16 October
Light rain. High 49°, low 36°.
Pressure30.59 inHg
Wind18.3 mph N
Humidity56%
Visibility6.2 mi
Dew point29°
Sat, 1757° / 34°0
57 °
Sibley, Saturday, 17 October
Clear. High 57°, low 34°.
Pressure30.42 inHg
Wind15.9 mph SW
Humidity47%
Visibility6.2 mi
Dew point29°
Sun, 1862° / 42°0
62 °
Sibley, Sunday, 18 October
Clear. High 62°, low 42°.
Pressure30.18 inHg
Wind15.4 mph S
Humidity55%
Visibility6.2 mi
Dew point38°
Mon, 1961° / 44°0
61 °
Sibley, Monday, 19 October
Overcast. High 61°, low 44°.
Pressure30.18 inHg
Wind9.7 mph S
Humidity68%
Visibility6.2 mi
Dew point45°
Tue, 2066° / 46°0
66 °
Sibley, Tuesday, 20 October
Clear. High 66°, low 46°.
Pressure30.18 inHg
Wind10.7 mph SE
Humidity57%
Visibility—
Dew point45°
Wed, 2163° / 52°0
63 °
Sibley, Wednesday, 21 October
Overcast. High 63°, low 52°.
Pressure30.15 inHg
Wind16.1 mph S
Humidity67%
Visibility—
Dew point46°
Thu, 2265° / 58°0
65 °
Sibley, Thursday, 22 October
Overcast. High 65°, low 58°.
Pressure30.00 inHg
Wind16.7 mph S
Humidity78%
Visibility—
Dew point57°
Fri, 2360° / 57°0.78
60 °
Sibley, Friday, 23 October
Rain. High 60°, low 57°.
Pressure29.85 inHg
Wind25.3 mph SE
Humidity66%
Visibility—
Dew point49°
Sat, 2461° / 51°0.01
61 °
Sibley, Saturday, 24 October
Light rain. High 61°, low 51°.
Pressure30.00 inHg
Wind25.6 mph S
Humidity55%
Visibility—
Dew point43°
Sun, 2559° / 43°0
59 °
Sibley, Sunday, 25 October
Partly cloudy. High 59°, low 43°.
Pressure30.50 inHg
Wind8.3 mph NW
Humidity39%
Visibility—
Dew point30°
Mon, 2655° / 47°0
55 °
Sibley, Monday, 26 October
Light rain. High 55°, low 47°.
Pressure30.36 inHg
Wind14.4 mph SE
Humidity65%
Visibility—
Dew point40°
Tue, 2763° / 55°0
63 °
Sibley, Tuesday, 27 October
Overcast. High 63°, low 55°.
Pressure30.06 inHg
Wind16.3 mph SW
Humidity71%
Visibility—
Dew point52°
Wed, 2864° / 53°0
64 °
Sibley, Wednesday, 28 October
Overcast. High 64°, low 53°.
Pressure30.03 inHg
Wind17.4 mph SW
Humidity71%
Visibility—
Dew point53°
Thu, 2961° / 46°0
61 °
Sibley, Thursday, 29 October
Overcast. High 61°, low 46°.
Pressure30.06 inHg
Wind22.1 mph NW
Humidity44%
Visibility—
Dew point37°
Fri, 3055° / 42°0
55 °
Sibley, Friday, 30 October
Clear. High 55°, low 42°.
Pressure30.42 inHg
Wind12.6 mph NW
Humidity27%
Visibility—
Dew point19°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3152° / 35°0.09
52 °
Sibley, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high52°
Average low35°
Average precipitation0.09 in
Chance of precipitation27%
Record high73° (1990)
Record low17° (1993)
Sun, 0150° / 35°0.07
50 °
Sibley, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.07 in
Chance of precipitation20%
Record high72° (1990)
Record low18° (2002)
Mon, 0250° / 35°0.04
50 °
Sibley, Monday, 2 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.04 in
Chance of precipitation15%
Record high72° (2022)
Record low10° (1991)
Tue, 0349° / 34°0.06
49 °
Sibley, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.06 in
Chance of precipitation22%
Record high72° (1978)
Record low1° (1991)
Wed, 0449° / 33°0.02
49 °
Sibley, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.02 in
Chance of precipitation12%
Record high71° (2020)
Record low-12° (1991)
Thu, 0550° / 33°0.05
50 °
Sibley, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.05 in
Chance of precipitation25%
Record high70° (2001)
Record low11° (1991)
Fri, 0649° / 33°0.04
49 °
Sibley, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.04 in
Chance of precipitation17%
Record high72° (2020)
Record low2° (1991)
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)
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.