Monthly outlook for Granite, IA: average high 58.4°, average low 41.6°. That is 0.6° above the climate normal for October. Precipitation is expected on 2 days (about 0.6 inches), against a normal of 3 days and 1.1 inches. The warmest day looks like 20 October (66.9°), the coolest 26 October (34.5°).
58.4°/41.6°
Average high / low
+0.6°
Above normal
2 / 3
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
60.1°
58.7°
+0.8°
24 October – 2 November
55.7°
53.7°
+1.1°
3 November – 12 November
at normal
47.6°
—
October records over 66 years
89.1°3 October 2025All-time high
13.8°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Worthing (14 mi).
Thu, 1559° / 49°0.27
59 °
Granite, Thursday, 15 October
Rain. High 59°, low 49°.
Pressure30.12 inHg
Wind8.9 mph NW
Humidity94%
Visibility1.9 mi
Dew point48°
Fri, 1652° / 39°0
52 °
Granite, Friday, 16 October
Clear. High 52°, low 39°.
Pressure30.59 inHg
Wind17 mph NW
Humidity53%
Visibility6.2 mi
Dew point29°
Sat, 1760° / 36°0
60 °
Granite, Saturday, 17 October
Clear. High 60°, low 36°.
Pressure30.42 inHg
Wind14 mph S
Humidity44%
Visibility6.2 mi
Dew point28°
Sun, 1864° / 44°0
64 °
Granite, Sunday, 18 October
Clear. High 64°, low 44°.
Pressure30.15 inHg
Wind14.7 mph S
Humidity44%
Visibility—
Dew point36°
Mon, 1963° / 46°0
63 °
Granite, Monday, 19 October
Overcast. High 63°, low 46°.
Pressure30.09 inHg
Wind13 mph S
Humidity59%
Visibility—
Dew point44°
Tue, 2067° / 44°0
67 °
Granite, Tuesday, 20 October
Clear. High 67°, low 44°.
Pressure30.15 inHg
Wind14.3 mph S
Humidity53%
Visibility—
Dew point43°
Wed, 2161° / 47°0
61 °
Granite, Wednesday, 21 October
Clear. High 61°, low 47°.
Pressure30.12 inHg
Wind14.3 mph N
Humidity39%
Visibility—
Dew point34°
Thu, 2257° / 38°0
57 °
Granite, Thursday, 22 October
Clear. High 57°, low 38°.
Pressure30.33 inHg
Wind9.2 mph E
Humidity37%
Visibility—
Dew point26°
Fri, 2360° / 38°0
60 °
Granite, Friday, 23 October
Partly cloudy. High 60°, low 38°.
Pressure30.27 inHg
Wind14.9 mph SE
Humidity40%
Visibility—
Dew point29°
Sat, 2449° / 43°0.36
49 °
Granite, Saturday, 24 October
Rain. High 49°, low 43°.
Pressure30.12 inHg
Wind13.1 mph S
Humidity92%
Visibility—
Dew point46°
Sun, 2549° / 36°0
49 °
Granite, Sunday, 25 October
Clear. High 49°, low 36°.
Pressure30.27 inHg
Wind13.7 mph NW
Humidity51%
Visibility—
Dew point28°
Mon, 2659° / 34°0
59 °
Granite, Monday, 26 October
Partly cloudy. High 59°, low 34°.
Pressure29.85 inHg
Wind13.3 mph S
Humidity45%
Visibility—
Dew point31°
Tue, 2757° / 37°0
57 °
Granite, Tuesday, 27 October
Clear. High 57°, low 37°.
Pressure29.94 inHg
Wind9.3 mph E
Humidity53%
Visibility—
Dew point35°
Wed, 2859° / 41°0
59 °
Granite, Wednesday, 28 October
Overcast. High 59°, low 41°.
Pressure29.85 inHg
Wind8.9 mph SE
Humidity66%
Visibility—
Dew point43°
Thu, 2961° / 47°0
61 °
Granite, Thursday, 29 October
Mostly clear. High 61°, low 47°.
Pressure29.83 inHg
Wind15.9 mph S
Humidity64%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3053° / 37°0.13
53 °
Granite, Friday, 30 October
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.13 in
Chance of precipitation27%
Record high70° (1965)
Record low18° (1991)
Sat, 3152° / 35°0.08
52 °
Granite, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high52°
Average low35°
Average precipitation0.08 in
Chance of precipitation27%
Record high73° (1990)
Record low14° (2002)
Sun, 0151° / 36°0.07
51 °
Granite, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.07 in
Chance of precipitation20%
Record high73° (1990)
Record low16° (2002)
Mon, 0251° / 35°0.04
51 °
Granite, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.04 in
Chance of precipitation18%
Record high73° (2005)
Record low10° (1991)
Tue, 0350° / 35°0.05
50 °
Granite, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.05 in
Chance of precipitation18%
Record high72° (1978)
Record low2° (1991)
Wed, 0450° / 33°0.02
50 °
Granite, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.02 in
Chance of precipitation10%
Record high71° (2020)
Record low-15° (1991)
Thu, 0551° / 34°0.05
51 °
Granite, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low34°
Average precipitation0.05 in
Chance of precipitation22%
Record high73° (2001)
Record low7° (1990)
Fri, 0650° / 34°0.03
50 °
Granite, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.03 in
Chance of precipitation17%
Record high75° (2020)
Record low6° (1991)
Sat, 0749° / 33°0.02
49 °
Granite, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.02 in
Chance of precipitation12%
Record high72° (2001)
Record low-12° (1991)
Sun, 0849° / 33°0.06
49 °
Granite, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.06 in
Chance of precipitation17%
Record high77° (1999)
Record low-2° (1991)
Mon, 0947° / 32°0.13
47 °
Granite, Monday, 9 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.13 in
Chance of precipitation22%
Record high72° (1999)
Record low14° (2018)
Tue, 1045° / 29°0.09
45 °
Granite, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.09 in
Chance of precipitation22%
Record high66° (2016)
Record low9° (1986)
Wed, 1143° / 28°0.05
43 °
Granite, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high43°
Average low28°
Average precipitation0.05 in
Chance of precipitation18%
Record high66° (2005)
Record low2° (1986)
Thu, 1243° / 27°0.06
43 °
Granite, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high43°
Average low27°
Average precipitation0.06 in
Chance of precipitation27%
Record high67° (2001)
Record low6° (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 Granite, 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 Granite, 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.