Monthly outlook for Sheffield, IA: average high 66.7°, average low 49.2°. That is 3.9° above the climate normal for October. Precipitation is expected on 4 days (about 1.3 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 10 October (80.2°), the coolest 17 October (35.2°).
66.7°/49.2°
Average high / low
+3.9°
Above normal
4 / 4
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
68.5°
60.8°
+4.3°
18 October – 27 October
63.6°
56.7°
+3.8°
28 October – 6 November
at normal
51.8°
—
October records over 66 years
86.7°1 October 2023All-time high
18.3°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Dougherty (9 mi).
Fri, 0976° / 50°0.89
76 °
Sheffield, Friday, 9 October
Heavy rain. High 76°, low 50°.
Pressure30.00 inHg
Wind9.2 mph SE
Humidity61%
Visibility6.2 mi
Dew point54°
Sat, 1080° / 60°0
80 °
Sheffield, Saturday, 10 October
Clear. High 80°, low 60°.
Pressure29.88 inHg
Wind14.1 mph S
Humidity56%
Visibility6.2 mi
Dew point60°
Sun, 1180° / 59°0
80 °
Sheffield, Sunday, 11 October
Mostly clear. High 80°, low 59°.
Pressure29.88 inHg
Wind10.2 mph S
Humidity58%
Visibility6.2 mi
Dew point59°
Mon, 1269° / 58°0.11
69 °
Sheffield, Monday, 12 October
Light rain. High 69°, low 58°.
Pressure29.83 inHg
Wind6.6 mph N
Humidity73%
Visibility6.2 mi
Dew point58°
Tue, 1364° / 50°0
64 °
Sheffield, Tuesday, 13 October
Clear. High 64°, low 50°.
Pressure30.03 inHg
Wind9.9 mph NE
Humidity59%
Visibility—
Dew point45°
Wed, 1467° / 54°0.16
67 °
Sheffield, Wednesday, 14 October
Light rain. High 67°, low 54°.
Pressure29.83 inHg
Wind19 mph SE
Humidity87%
Visibility—
Dew point56°
Thu, 1570° / 55°0
70 °
Sheffield, Thursday, 15 October
Overcast. High 70°, low 55°.
Pressure29.97 inHg
Wind16.5 mph SW
Humidity40%
Visibility—
Dew point42°
Fri, 1656° / 45°0
56 °
Sheffield, Friday, 16 October
Overcast. High 56°, low 45°.
Pressure30.47 inHg
Wind19.3 mph N
Humidity48%
Visibility—
Dew point32°
Sat, 1751° / 35°0
51 °
Sheffield, Saturday, 17 October
Clear. High 51°, low 35°.
Pressure30.59 inHg
Wind10.2 mph N
Humidity40%
Visibility—
Dew point23°
Sun, 1857° / 38°0
57 °
Sheffield, Sunday, 18 October
Clear. High 57°, low 38°.
Pressure30.50 inHg
Wind10.8 mph S
Humidity31%
Visibility—
Dew point23°
Mon, 1961° / 40°0
61 °
Sheffield, Monday, 19 October
Mostly clear. High 61°, low 40°.
Pressure30.30 inHg
Wind16.2 mph S
Humidity35%
Visibility—
Dew point29°
Tue, 2057° / 47°0.13
57 °
Sheffield, Tuesday, 20 October
Light rain. High 57°, low 47°.
Pressure30.09 inHg
Wind13.1 mph SW
Humidity51%
Visibility—
Dew point38°
Wed, 2166° / 49°0
66 °
Sheffield, Wednesday, 21 October
Clear. High 66°, low 49°.
Pressure30.00 inHg
Wind11.5 mph NW
Humidity50%
Visibility—
Dew point44°
Thu, 2269° / 50°0
69 °
Sheffield, Thursday, 22 October
Partly cloudy. High 69°, low 50°.
Pressure30.12 inHg
Wind6.9 mph W
Humidity43%
Visibility—
Dew point42°
Fri, 2371° / 52°0
71 °
Sheffield, Friday, 23 October
Clear. High 71°, low 52°.
Pressure30.18 inHg
Wind7.4 mph SE
Humidity44%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2456° / 40°0.12
56 °
Sheffield, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.12 in
Chance of precipitation35%
Record high74° (2023)
Record low21° (2020)
Sun, 2555° / 39°0.06
55 °
Sheffield, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.06 in
Chance of precipitation20%
Record high76° (1989)
Record low26° (2019)
Mon, 2655° / 39°0.06
55 °
Sheffield, Monday, 26 October
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.06 in
Chance of precipitation18%
Record high74° (1989)
Record low22° (1962)
Tue, 2755° / 39°0.07
55 °
Sheffield, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.07 in
Chance of precipitation23%
Record high73° (1966)
Record low18° (2020)
Wed, 2853° / 38°0.07
53 °
Sheffield, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.07 in
Chance of precipitation23%
Record high75° (2016)
Record low20° (1967)
Thu, 2955° / 38°0.08
55 °
Sheffield, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high55°
Average low38°
Average precipitation0.08 in
Chance of precipitation27%
Record high80° (2024)
Record low22° (1988)
Fri, 3055° / 39°0.08
55 °
Sheffield, Friday, 30 October
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.08 in
Chance of precipitation32%
Record high74° (2024)
Record low20° (1988)
Sat, 3153° / 38°0.1
53 °
Sheffield, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.1 in
Chance of precipitation30%
Record high73° (1968)
Record low21° (1993)
Sun, 0152° / 37°0.12
52 °
Sheffield, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.12 in
Chance of precipitation27%
Record high72° (2000)
Record low22° (2002)
Mon, 0251° / 36°0.05
51 °
Sheffield, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.05 in
Chance of precipitation25%
Record high72° (2022)
Record low15° (1991)
Tue, 0351° / 36°0.06
51 °
Sheffield, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.06 in
Chance of precipitation25%
Record high71° (2008)
Record low12° (1991)
Wed, 0450° / 35°0.07
50 °
Sheffield, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.07 in
Chance of precipitation22%
Record high71° (2008)
Record low7° (1991)
Thu, 0550° / 34°0.07
50 °
Sheffield, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.07 in
Chance of precipitation22%
Record high70° (2015)
Record low18° (1991)
Fri, 0650° / 35°0.07
50 °
Sheffield, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.07 in
Chance of precipitation23%
Record high70° (2020)
Record low7° (1991)
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 Sheffield, 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 Sheffield, 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.