Monthly outlook for Winchester, ID: average high 49.6°, average low 37.1°. That is 1.3° below the climate normal for October. Precipitation is expected on 4 days (about 0.8 inches), against a normal of 7 days and 1.4 inches. The warmest day looks like 6 November (59°), the coolest 2 November (30.4°).
49.6°/37.1°
Average high / low
−1.3°
Below normal
4 / 7
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
27 October – 5 November
47.5°
53.3°
-3.2°
6 November – 15 November
53.1°
49.1°
+2.2°
16 November – 25 November
at normal
44.3°
—
October records over 66 years
88°2 October 1987All-time high
14.5°30 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Culdesac (10 mi).
Wed, 2841° / 35°0.14
41 °
Winchester, Wednesday, 28 October
Snow. High 41°, low 35°.
Pressure30.03 inHg
Wind3.5 mph W
Humidity79%
Visibility6.2 mi
Dew point38°
Thu, 2950° / 33°0
50 °
Winchester, Thursday, 29 October
Overcast. High 50°, low 33°.
Pressure30.03 inHg
Wind3 mph NE
Humidity61%
Visibility6.2 mi
Dew point34°
Fri, 3048° / 38°0.03
48 °
Winchester, Friday, 30 October
Light rain. High 48°, low 38°.
Pressure29.91 inHg
Wind3.8 mph NW
Humidity64%
Visibility6.2 mi
Dew point36°
Sat, 3148° / 36°0
48 °
Winchester, Saturday, 31 October
Overcast. High 48°, low 36°.
Pressure29.97 inHg
Wind3.4 mph NW
Humidity77%
Visibility—
Dew point38°
Sun, 0140° / 36°0.07
40 °
Winchester, Sunday, 1 November
Light rain. High 40°, low 36°.
Pressure30.18 inHg
Wind6.6 mph W
Humidity99%
Visibility—
Dew point37°
Mon, 0245° / 30°0
45 °
Winchester, Monday, 2 November
Clear. High 45°, low 30°.
Pressure30.36 inHg
Wind6.2 mph SE
Humidity54%
Visibility—
Dew point24°
Tue, 0352° / 32°0
52 °
Winchester, Tuesday, 3 November
Overcast. High 52°, low 32°.
Pressure30.21 inHg
Wind6.5 mph SE
Humidity37%
Visibility—
Dew point19°
Wed, 0454° / 38°0
54 °
Winchester, Wednesday, 4 November
Overcast. High 54°, low 38°.
Pressure30.00 inHg
Wind5.7 mph S
Humidity31%
Visibility—
Dew point17°
Thu, 0556° / 42°0
56 °
Winchester, Thursday, 5 November
Overcast. High 56°, low 42°.
Pressure30.00 inHg
Wind7.2 mph S
Humidity45%
Visibility—
Dew point30°
Fri, 0659° / 45°0.03
59 °
Winchester, Friday, 6 November
Light rain. High 59°, low 45°.
Pressure29.80 inHg
Wind9.1 mph S
Humidity65%
Visibility—
Dew point40°
Sat, 0756° / 40°0.22
56 °
Winchester, Saturday, 7 November
Rain. High 56°, low 40°.
Pressure29.56 inHg
Wind12 mph S
Humidity54%
Visibility—
Dew point39°
Sun, 0849° / 37°0
49 °
Winchester, Sunday, 8 November
Mostly clear. High 49°, low 37°.
Pressure30.15 inHg
Wind7.2 mph W
Humidity61%
Visibility—
Dew point32°
Mon, 0953° / 37°0
53 °
Winchester, Monday, 9 November
Overcast. High 53°, low 37°.
Pressure30.24 inHg
Wind5.9 mph SE
Humidity49%
Visibility—
Dew point28°
Tue, 1055° / 40°0
55 °
Winchester, Tuesday, 10 November
Partly cloudy. High 55°, low 40°.
Pressure30.12 inHg
Wind5.4 mph S
Humidity41%
Visibility—
Dew point27°
Wed, 1146° / 38°0
46 °
Winchester, Wednesday, 11 November
Overcast. High 46°, low 38°.
Pressure30.06 inHg
Wind8.2 mph NW
Humidity54%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 1248° / 34°0.1
48 °
Winchester, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.1 in
Chance of precipitation38%
Record high71° (1999)
Record low12° (1985)
Fri, 1348° / 33°0.08
48 °
Winchester, Friday, 13 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.08 in
Chance of precipitation45%
Record high69° (1999)
Record low12° (1985)
Sat, 1448° / 33°0.06
48 °
Winchester, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.06 in
Chance of precipitation33%
Record high67° (2021)
Record low20° (1978)
Sun, 1548° / 32°0.05
48 °
Winchester, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.05 in
Chance of precipitation32%
Record high63° (2021)
Record low12° (1988)
Mon, 1647° / 33°0.09
47 °
Winchester, Monday, 16 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.09 in
Chance of precipitation52%
Record high60° (1999)
Record low20° (2014)
Tue, 1747° / 33°0.1
47 °
Winchester, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.1 in
Chance of precipitation47%
Record high62° (1976)
Record low20° (2000)
Wed, 1846° / 32°0.11
46 °
Winchester, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.11 in
Chance of precipitation53%
Record high60° (2008)
Record low16° (1994)
Thu, 1946° / 30°0.1
46 °
Winchester, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.1 in
Chance of precipitation40%
Record high59° (2003)
Record low6° (1985)
Fri, 2045° / 31°0.09
45 °
Winchester, Friday, 20 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.09 in
Chance of precipitation47%
Record high60° (2002)
Record low15° (1978)
Sat, 2144° / 30°0.08
44 °
Winchester, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.08 in
Chance of precipitation43%
Record high60° (2002)
Record low12° (1985)
Sun, 2243° / 29°0.1
43 °
Winchester, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.1 in
Chance of precipitation50%
Record high57° (2002)
Record low4° (1994)
Mon, 2342° / 29°0.1
42 °
Winchester, Monday, 23 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.1 in
Chance of precipitation48%
Record high62° (2017)
Record low-7° (1985)
Tue, 2442° / 30°0.12
42 °
Winchester, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.12 in
Chance of precipitation53%
Record high55° (1995)
Record low-5° (1985)
Wed, 2541° / 29°0.15
41 °
Winchester, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.15 in
Chance of precipitation52%
Record high53° (2017)
Record low-2° (2010)
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 Winchester, 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 Winchester, 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.