Monthly outlook for Big Rock, IA: average high 59.5°, average low 47.1°. That is 3.1° above the climate normal for October. Precipitation is expected on 5 days (about 4.1 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 28 October (72°), the coolest 6 November (36.2°).
59.5°/47.1°
Average high / low
+3.1°
Above normal
5 / 4
Wet days / normal
4.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
26 October – 4 November
62.8°
55.4°
+4.1°
5 November – 14 November
53.9°
49.8°
+2.3°
15 November – 24 November
at normal
46.1°
—
October records over 66 years
89.1°6 October 1963All-time high
17.4°30 October 1980All-time low
Climate normals and records are computed from the nearest reference point — Plainview (7 mi).
Tue, 2769° / 51°0
69 °
Big Rock, Tuesday, 27 October
Overcast. High 69°, low 51°.
Pressure30.18 inHg
Wind6.8 mph S
Humidity66%
Visibility6.2 mi
Dew point52°
Wed, 2872° / 52°0
72 °
Big Rock, Wednesday, 28 October
Overcast. High 72°, low 52°.
Pressure30.12 inHg
Wind8.4 mph S
Humidity58%
Visibility6.2 mi
Dew point53°
Thu, 2967° / 52°0.02
67 °
Big Rock, Thursday, 29 October
Light rain. High 67°, low 52°.
Pressure30.09 inHg
Wind5.7 mph W
Humidity83%
Visibility6.2 mi
Dew point60°
Fri, 3066° / 45°0.01
66 °
Big Rock, Friday, 30 October
Light rain. High 66°, low 45°.
Pressure30.21 inHg
Wind6.9 mph SE
Humidity63%
Visibility6.2 mi
Dew point48°
Sat, 3168° / 57°0.6
68 °
Big Rock, Saturday, 31 October
Rain. High 68°, low 57°.
Pressure30.12 inHg
Wind8.9 mph S
Humidity83%
Visibility—
Dew point58°
Sun, 0163° / 57°0.01
63 °
Big Rock, Sunday, 1 November
Light rain. High 63°, low 57°.
Pressure29.97 inHg
Wind9.3 mph N
Humidity74%
Visibility—
Dew point54°
Mon, 0258° / 53°0.11
58 °
Big Rock, Monday, 2 November
Light rain. High 58°, low 53°.
Pressure29.85 inHg
Wind18.3 mph E
Humidity80%
Visibility—
Dew point51°
Tue, 0356° / 43°3.05
56 °
Big Rock, Tuesday, 3 November
Heavy rain. High 56°, low 43°.
Pressure29.53 inHg
Wind29.1 mph E
Humidity93%
Visibility—
Dew point51°
Wed, 0444° / 41°0.3
44 °
Big Rock, Wednesday, 4 November
Rain. High 44°, low 41°.
Pressure30.06 inHg
Wind23.3 mph NE
Humidity90%
Visibility—
Dew point38°
Thu, 0551° / 38°0
51 °
Big Rock, Thursday, 5 November
Overcast. High 51°, low 38°.
Pressure30.12 inHg
Wind14.1 mph N
Humidity69%
Visibility—
Dew point37°
Fri, 0651° / 36°0
51 °
Big Rock, Friday, 6 November
Clear. High 51°, low 36°.
Pressure30.21 inHg
Wind6.9 mph S
Humidity47%
Visibility—
Dew point29°
Sat, 0755° / 39°0
55 °
Big Rock, Saturday, 7 November
Overcast. High 55°, low 39°.
Pressure30.03 inHg
Wind16 mph S
Humidity61%
Visibility—
Dew point39°
Sun, 0861° / 50°0
61 °
Big Rock, Sunday, 8 November
Overcast. High 61°, low 50°.
Pressure29.80 inHg
Wind17.7 mph SW
Humidity66%
Visibility—
Dew point46°
Mon, 0957° / 45°0
57 °
Big Rock, Monday, 9 November
Overcast. High 57°, low 45°.
Pressure29.80 inHg
Wind7.4 mph W
Humidity61%
Visibility—
Dew point42°
Tue, 1049° / 44°0.05
49 °
Big Rock, Tuesday, 10 November
Light rain. High 49°, low 44°.
Pressure29.74 inHg
Wind17.3 mph NW
Humidity86%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1148° / 33°0.06
48 °
Big Rock, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.06 in
Chance of precipitation23%
Record high72° (1964)
Record low13° (2019)
Thu, 1246° / 32°0.06
46 °
Big Rock, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.06 in
Chance of precipitation27%
Record high66° (1964)
Record low6° (2019)
Fri, 1347° / 32°0.05
47 °
Big Rock, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.05 in
Chance of precipitation27%
Record high73° (1999)
Record low6° (1986)
Sat, 1448° / 33°0.05
48 °
Big Rock, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.05 in
Chance of precipitation28%
Record high70° (2025)
Record low14° (1986)
Sun, 1547° / 34°0.07
47 °
Big Rock, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.07 in
Chance of precipitation28%
Record high69° (2001)
Record low16° (1972)
Mon, 1648° / 33°0.06
48 °
Big Rock, Monday, 16 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.06 in
Chance of precipitation25%
Record high66° (1971)
Record low16° (1997)
Tue, 1749° / 34°0.13
49 °
Big Rock, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.13 in
Chance of precipitation27%
Record high73° (2016)
Record low13° (2005)
Wed, 1848° / 34°0.07
48 °
Big Rock, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.07 in
Chance of precipitation27%
Record high70° (1999)
Record low10° (2014)
Thu, 1948° / 33°0.06
48 °
Big Rock, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.06 in
Chance of precipitation27%
Record high66° (2020)
Record low16° (2022)
Fri, 2045° / 32°0.1
45 °
Big Rock, Friday, 20 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.1 in
Chance of precipitation30%
Record high65° (2003)
Record low15° (1964)
Sat, 2144° / 30°0.08
44 °
Big Rock, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.08 in
Chance of precipitation22%
Record high67° (1990)
Record low7° (1964)
Sun, 2245° / 30°0.03
45 °
Big Rock, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high45°
Average low30°
Average precipitation0.03 in
Chance of precipitation15%
Record high64° (2010)
Record low2° (2015)
Mon, 2344° / 30°0.09
44 °
Big Rock, Monday, 23 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.09 in
Chance of precipitation28%
Record high66° (1966)
Record low10° (1970)
Tue, 2443° / 29°0.08
43 °
Big Rock, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.08 in
Chance of precipitation22%
Record high63° (2017)
Record low6° (1985)
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 Big Rock, 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 Big Rock, 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.