Monthly outlook for Granite, ID: average high 55.3°, average low 36°. That is 1° below the climate normal for October. Precipitation is expected on 3 days (about 0.7 inches), against a normal of 5 days and 1.3 inches. The warmest day looks like 8 October (75.1°), the coolest 23 October (29.4°).
55.3°/36°
Average high / low
−1°
Below normal
3 / 5
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
54.6°
58.2°
-2°
18 October – 27 October
56.4°
53.7°
+1.5°
28 October – 6 November
at normal
47.1°
—
October records over 66 years
84.4°1 October 1992All-time high
6.1°25 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Athol (5 mi).
Fri, 0963° / 42°0.01
63 °
Granite, Friday, 9 October
Light rain. High 63°, low 42°.
Pressure29.59 inHg
Wind9.4 mph SW
Humidity42%
Visibility6.2 mi
Dew point40°
Sat, 1049° / 35°0.03
49 °
Granite, Saturday, 10 October
Light rain. High 49°, low 35°.
Pressure29.83 inHg
Wind2.8 mph SE
Humidity52%
Visibility6.2 mi
Dew point32°
Sun, 1146° / 34°0
46 °
Granite, Sunday, 11 October
Mostly clear. High 46°, low 34°.
Pressure30.12 inHg
Wind11.3 mph NE
Humidity56%
Visibility6.2 mi
Dew point21°
Mon, 1250° / 30°0
50 °
Granite, Monday, 12 October
Clear. High 50°, low 30°.
Pressure30.18 inHg
Wind3.8 mph N
Humidity58%
Visibility—
Dew point28°
Tue, 1355° / 32°0.24
55 °
Granite, Tuesday, 13 October
Rain. High 55°, low 32°.
Pressure30.09 inHg
Wind4.2 mph SE
Humidity48%
Visibility—
Dew point28°
Wed, 1444° / 40°0.39
44 °
Granite, Wednesday, 14 October
Rain. High 44°, low 40°.
Pressure29.85 inHg
Wind5.4 mph W
Humidity79%
Visibility—
Dew point38°
Thu, 1549° / 34°0.01
49 °
Granite, Thursday, 15 October
Light rain. High 49°, low 34°.
Pressure30.36 inHg
Wind3.5 mph NW
Humidity71%
Visibility—
Dew point36°
Fri, 1656° / 31°0
56 °
Granite, Friday, 16 October
Clear. High 56°, low 31°.
Pressure30.47 inHg
Wind3.1 mph N
Humidity51%
Visibility—
Dew point29°
Sat, 1759° / 36°0
59 °
Granite, Saturday, 17 October
Overcast. High 59°, low 36°.
Pressure30.27 inHg
Wind3.6 mph SW
Humidity42%
Visibility—
Dew point28°
Sun, 1860° / 36°0
60 °
Granite, Sunday, 18 October
Overcast. High 60°, low 36°.
Pressure30.12 inHg
Wind2.6 mph NE
Humidity37%
Visibility—
Dew point26°
Mon, 1962° / 39°0
62 °
Granite, Monday, 19 October
Partly cloudy. High 62°, low 39°.
Pressure30.21 inHg
Wind3.2 mph NE
Humidity45%
Visibility—
Dew point32°
Tue, 2060° / 41°0
60 °
Granite, Tuesday, 20 October
Overcast. High 60°, low 41°.
Pressure30.18 inHg
Wind3.8 mph SW
Humidity46%
Visibility—
Dew point33°
Wed, 2160° / 40°0.04
60 °
Granite, Wednesday, 21 October
Light rain. High 60°, low 40°.
Pressure29.80 inHg
Wind14.5 mph W
Humidity41%
Visibility—
Dew point33°
Thu, 2254° / 34°0
54 °
Granite, Thursday, 22 October
Clear. High 54°, low 34°.
Pressure30.00 inHg
Wind11.9 mph W
Humidity35%
Visibility—
Dew point22°
Fri, 2341° / 29°0
41 °
Granite, Friday, 23 October
Overcast. High 41°, low 29°.
Pressure30.06 inHg
Wind3.6 mph S
Humidity61%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2453° / 37°0.08
53 °
Granite, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.08 in
Chance of precipitation32%
Record high67° (1992)
Record low19° (2020)
Sun, 2553° / 37°0.11
53 °
Granite, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.11 in
Chance of precipitation45%
Record high68° (1966)
Record low6° (2020)
Mon, 2651° / 37°0.11
51 °
Granite, Monday, 26 October
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.11 in
Chance of precipitation45%
Record high68° (1986)
Record low10° (2020)
Tue, 2750° / 36°0.08
50 °
Granite, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.08 in
Chance of precipitation42%
Record high65° (1965)
Record low17° (2020)
Wed, 2849° / 36°0.11
49 °
Granite, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.11 in
Chance of precipitation52%
Record high63° (1987)
Record low21° (2023)
Thu, 2948° / 34°0.11
48 °
Granite, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.11 in
Chance of precipitation37%
Record high65° (1983)
Record low15° (1991)
Fri, 3048° / 34°0.1
48 °
Granite, Friday, 30 October
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.1 in
Chance of precipitation38%
Record high64° (2008)
Record low19° (2019)
Sat, 3147° / 35°0.13
47 °
Granite, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.13 in
Chance of precipitation45%
Record high65° (1988)
Record low14° (1984)
Sun, 0147° / 35°0.13
47 °
Granite, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.13 in
Chance of precipitation43%
Record high64° (1988)
Record low18° (1984)
Mon, 0247° / 34°0.13
47 °
Granite, Monday, 2 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.13 in
Chance of precipitation43%
Record high63° (1981)
Record low10° (1991)
Tue, 0347° / 35°0.09
47 °
Granite, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.09 in
Chance of precipitation37%
Record high60° (1975)
Record low20° (2017)
Wed, 0446° / 35°0.19
46 °
Granite, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.19 in
Chance of precipitation52%
Record high65° (1975)
Record low18° (2017)
Thu, 0546° / 34°0.11
46 °
Granite, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.11 in
Chance of precipitation47%
Record high64° (1975)
Record low16° (1961)
Fri, 0645° / 34°0.15
45 °
Granite, Friday, 6 November
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.15 in
Chance of precipitation57%
Record high60° (2012)
Record low17° (1994)
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, ID 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, ID 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.