Monthly outlook for Granite, ID: average high 53.7°, average low 37°. That is 1.8° below the climate normal for October. Precipitation is expected on 5 days (about 3.0 inches), against a normal of 5 days and 1.3 inches. The warmest day looks like 8 October (74°), the coolest 13 October (32.7°).
53.7°/37°
Average high / low
−1.8°
Below normal
5 / 5
Wet days / normal
3.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
54.9°
58.2°
-1.9°
18 October – 27 October
51.8°
53.7°
-1°
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, 0964° / 43°0
64 °
Granite, Friday, 9 October
Light rain. High 64°, low 43°.
Pressure29.56 inHg
Wind10.8 mph SW
Humidity40%
Visibility6.2 mi
Dew point39°
Sat, 1052° / 36°0.04
52 °
Granite, Saturday, 10 October
Light rain. High 52°, low 36°.
Pressure29.77 inHg
Wind3 mph S
Humidity50%
Visibility6.2 mi
Dew point32°
Sun, 1146° / 36°0
46 °
Granite, Sunday, 11 October
Overcast. High 46°, low 36°.
Pressure30.06 inHg
Wind12.8 mph NE
Humidity59%
Visibility6.2 mi
Dew point24°
Mon, 1252° / 33°0
52 °
Granite, Monday, 12 October
Clear. High 52°, low 33°.
Pressure30.06 inHg
Wind6.3 mph NE
Humidity55%
Visibility—
Dew point29°
Tue, 1357° / 33°0.02
57 °
Granite, Tuesday, 13 October
Light rain. High 57°, low 33°.
Pressure30.00 inHg
Wind3.3 mph SE
Humidity56%
Visibility—
Dew point33°
Wed, 1442° / 38°0.7
42 °
Granite, Wednesday, 14 October
Snow. High 42°, low 38°.
Pressure29.71 inHg
Wind5.9 mph S
Humidity97%
Visibility—
Dew point39°
Thu, 1547° / 39°0
47 °
Granite, Thursday, 15 October
Overcast. High 47°, low 39°.
Pressure30.33 inHg
Wind1.9 mph SW
Humidity84%
Visibility—
Dew point38°
Fri, 1657° / 36°0
57 °
Granite, Friday, 16 October
Clear. High 57°, low 36°.
Pressure30.45 inHg
Wind3.2 mph SW
Humidity50%
Visibility—
Dew point32°
Sat, 1758° / 36°0
58 °
Granite, Saturday, 17 October
Mostly clear. High 58°, low 36°.
Pressure30.30 inHg
Wind3.9 mph SW
Humidity51%
Visibility—
Dew point33°
Sun, 1861° / 37°0
61 °
Granite, Sunday, 18 October
Partly cloudy. High 61°, low 37°.
Pressure30.18 inHg
Wind4 mph SW
Humidity50%
Visibility—
Dew point34°
Mon, 1962° / 38°0
62 °
Granite, Monday, 19 October
Partly cloudy. High 62°, low 38°.
Pressure30.15 inHg
Wind3 mph SW
Humidity46%
Visibility—
Dew point33°
Tue, 2060° / 40°0
60 °
Granite, Tuesday, 20 October
Overcast. High 60°, low 40°.
Pressure30.06 inHg
Wind4.7 mph SW
Humidity51%
Visibility—
Dew point34°
Wed, 2150° / 36°1.07
50 °
Granite, Wednesday, 21 October
Rain. High 50°, low 36°.
Pressure29.41 inHg
Wind12 mph W
Humidity91%
Visibility—
Dew point45°
Thu, 2241° / 34°0.26
41 °
Granite, Thursday, 22 October
Rain. High 41°, low 34°.
Pressure29.56 inHg
Wind4.4 mph NE
Humidity80%
Visibility—
Dew point34°
Fri, 2336° / 34°0.88
36 °
Granite, Friday, 23 October
Snow. High 36°, low 34°.
Pressure29.71 inHg
Wind2.3 mph S
Humidity100%
Visibility—
Dew point36°
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.