Monthly outlook for Sinclair, ID: average high 49.6°, average low 31.5°. That is 4° below the climate normal for October. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 6 days and 1.6 inches. The warmest day looks like 8 October (71°), the coolest 12 October (21.2°).
49.6°/31.5°
Average high / low
−4°
Below normal
4 / 6
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
47.7°
58.2°
-5.8°
17 October – 26 October
52.8°
53.5°
-0.3°
27 October – 5 November
at normal
46.9°
—
October records over 66 years
84.7°1 October 1992All-time high
4.6°25 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Copeland (10 mi).
Thu, 0871° / 41°0
71 °
Sinclair, Thursday, 8 October
Overcast. High 71°, low 41°.
Pressure30.00 inHg
Wind5 mph S
Humidity41%
Visibility6.2 mi
Dew point38°
Fri, 0951° / 37°0.16
51 °
Sinclair, Friday, 9 October
Rain. High 51°, low 37°.
Pressure29.56 inHg
Wind6.7 mph S
Humidity94%
Visibility3.4 mi
Dew point43°
Sat, 1040° / 28°0.15
40 °
Sinclair, Saturday, 10 October
Snow. High 40°, low 28°.
Pressure29.91 inHg
Wind10 mph NE
Humidity69%
Visibility6.2 mi
Dew point25°
Sun, 1137° / 22°0
37 °
Sinclair, Sunday, 11 October
Mostly clear. High 37°, low 22°.
Pressure30.21 inHg
Wind9.8 mph NE
Humidity71%
Visibility6.2 mi
Dew point14°
Mon, 1243° / 21°0
43 °
Sinclair, Monday, 12 October
Clear. High 43°, low 21°.
Pressure30.15 inHg
Wind4.9 mph NE
Humidity65%
Visibility—
Dew point25°
Tue, 1341° / 29°0.33
41 °
Sinclair, Tuesday, 13 October
Snow. High 41°, low 29°.
Pressure29.88 inHg
Wind4.4 mph S
Humidity55%
Visibility—
Dew point25°
Wed, 1438° / 35°0.26
38 °
Sinclair, Wednesday, 14 October
Snow. High 38°, low 35°.
Pressure29.91 inHg
Wind4.1 mph SW
Humidity100%
Visibility—
Dew point36°
Thu, 1542° / 26°0
42 °
Sinclair, Thursday, 15 October
Overcast. High 42°, low 26°.
Pressure30.45 inHg
Wind3.7 mph E
Humidity79%
Visibility—
Dew point33°
Fri, 1648° / 23°0
48 °
Sinclair, Friday, 16 October
Clear. High 48°, low 23°.
Pressure30.56 inHg
Wind4.1 mph NE
Humidity75%
Visibility—
Dew point31°
Sat, 1753° / 27°0
53 °
Sinclair, Saturday, 17 October
Mostly clear. High 53°, low 27°.
Pressure30.12 inHg
Wind4 mph NE
Humidity74%
Visibility—
Dew point35°
Sun, 1849° / 33°0
49 °
Sinclair, Sunday, 18 October
Overcast. High 49°, low 33°.
Pressure29.88 inHg
Wind3.8 mph S
Humidity79%
Visibility—
Dew point37°
Mon, 1951° / 32°0
51 °
Sinclair, Monday, 19 October
Overcast. High 51°, low 32°.
Pressure30.18 inHg
Wind2.9 mph SW
Humidity54%
Visibility—
Dew point29°
Tue, 2055° / 36°0
55 °
Sinclair, Tuesday, 20 October
Mostly clear. High 55°, low 36°.
Pressure30.36 inHg
Wind2.4 mph SW
Humidity64%
Visibility—
Dew point36°
Wed, 2155° / 39°0
55 °
Sinclair, Wednesday, 21 October
Overcast. High 55°, low 39°.
Pressure30.36 inHg
Wind3.6 mph N
Humidity69%
Visibility—
Dew point38°
Thu, 2254° / 35°0
54 °
Sinclair, Thursday, 22 October
Clear. High 54°, low 35°.
Pressure30.47 inHg
Wind2.9 mph W
Humidity60%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2353° / 39°0.12
53 °
Sinclair, Friday, 23 October
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.12 in
Chance of precipitation45%
Record high67° (1965)
Record low29° (1990)
Sat, 2453° / 38°0.09
53 °
Sinclair, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.09 in
Chance of precipitation38%
Record high67° (1986)
Record low13° (2020)
Sun, 2551° / 38°0.11
51 °
Sinclair, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.11 in
Chance of precipitation42%
Record high66° (2005)
Record low5° (2020)
Mon, 2649° / 37°0.15
49 °
Sinclair, Monday, 26 October
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.15 in
Chance of precipitation50%
Record high66° (1986)
Record low11° (2020)
Tue, 2749° / 37°0.12
49 °
Sinclair, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.12 in
Chance of precipitation42%
Record high64° (1965)
Record low15° (1970)
Wed, 2848° / 36°0.14
48 °
Sinclair, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.14 in
Chance of precipitation55%
Record high62° (2017)
Record low7° (1971)
Thu, 2948° / 35°0.14
48 °
Sinclair, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.14 in
Chance of precipitation45%
Record high65° (1962)
Record low10° (1991)
Fri, 3047° / 35°0.13
47 °
Sinclair, Friday, 30 October
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.13 in
Chance of precipitation45%
Record high63° (1962)
Record low11° (1991)
Sat, 3147° / 35°0.17
47 °
Sinclair, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.17 in
Chance of precipitation50%
Record high61° (1988)
Record low11° (1984)
Sun, 0147° / 35°0.15
47 °
Sinclair, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.15 in
Chance of precipitation45%
Record high62° (1987)
Record low8° (1984)
Mon, 0246° / 35°0.17
46 °
Sinclair, Monday, 2 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.17 in
Chance of precipitation52%
Record high60° (1981)
Record low8° (1961)
Tue, 0346° / 35°0.11
46 °
Sinclair, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.11 in
Chance of precipitation43%
Record high59° (2020)
Record low14° (1994)
Wed, 0446° / 35°0.22
46 °
Sinclair, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.22 in
Chance of precipitation57%
Record high60° (1975)
Record low11° (1961)
Thu, 0545° / 34°0.14
45 °
Sinclair, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.14 in
Chance of precipitation47%
Record high60° (2016)
Record low9° (1971)
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 Sinclair, 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 Sinclair, 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.