Monthly outlook for Chester, ID: average high 50.6°, average low 34.1°. That is 2° below the climate normal for October. Precipitation is expected on 6 days (about 1.2 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 19 October (68.4°), the coolest 24 October (23.3°).
50.6°/34.1°
Average high / low
−2°
Below normal
6 / 4
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
54.1°
55.9°
-1°
23 October – 1 November
44.7°
49.3°
-2.6°
2 November – 11 November
at normal
44.2°
—
October records over 66 years
81.7°1 October 1992All-time high
4.3°30 October 1989All-time low
Climate normals and records are computed from the nearest reference point — Newdale (8 mi).
Wed, 1454° / 34°0
54 °
Chester, Wednesday, 14 October
Clear. High 54°, low 34°.
Pressure30.27 inHg
Wind4.1 mph S
Humidity83%
Visibility6.2 mi
Dew point37°
Thu, 1563° / 34°0
63 °
Chester, Thursday, 15 October
Clear. High 63°, low 34°.
Pressure30.47 inHg
Wind8.7 mph NE
Humidity43%
Visibility6.2 mi
Dew point35°
Fri, 1662° / 35°0
62 °
Chester, Friday, 16 October
Clear. High 62°, low 35°.
Pressure30.53 inHg
Wind2 mph N
Humidity47%
Visibility6.2 mi
Dew point36°
Sat, 1761° / 37°0
61 °
Chester, Saturday, 17 October
Clear. High 61°, low 37°.
Pressure30.21 inHg
Wind6.2 mph NE
Humidity43%
Visibility—
Dew point30°
Sun, 1861° / 39°0
61 °
Chester, Sunday, 18 October
Partly cloudy. High 61°, low 39°.
Pressure30.06 inHg
Wind9 mph E
Humidity47%
Visibility—
Dew point33°
Mon, 1968° / 44°0
68 °
Chester, Monday, 19 October
Overcast. High 68°, low 44°.
Pressure29.74 inHg
Wind21.1 mph SW
Humidity26%
Visibility—
Dew point27°
Tue, 2048° / 42°0.22
48 °
Chester, Tuesday, 20 October
Light rain. High 48°, low 42°.
Pressure29.80 inHg
Wind20.5 mph SW
Humidity73%
Visibility—
Dew point36°
Wed, 2141° / 34°0.41
41 °
Chester, Wednesday, 21 October
Snow. High 41°, low 34°.
Pressure29.94 inHg
Wind10.4 mph S
Humidity100%
Visibility—
Dew point37°
Thu, 2236° / 34°0.11
36 °
Chester, Thursday, 22 October
Snow. High 36°, low 34°.
Pressure30.09 inHg
Wind12.3 mph SW
Humidity76%
Visibility—
Dew point29°
Fri, 2336° / 32°0.32
36 °
Chester, Friday, 23 October
Snow. High 36°, low 32°.
Pressure30.27 inHg
Wind6.9 mph S
Humidity100%
Visibility—
Dew point34°
Sat, 2438° / 23°0.01
38 °
Chester, Saturday, 24 October
Light snow. High 38°, low 23°.
Pressure30.45 inHg
Wind6.4 mph SW
Humidity72%
Visibility—
Dew point24°
Sun, 2540° / 30°0.05
40 °
Chester, Sunday, 25 October
Light snow. High 40°, low 30°.
Pressure30.24 inHg
Wind7.9 mph SW
Humidity63%
Visibility—
Dew point26°
Mon, 2646° / 30°0.01
46 °
Chester, Monday, 26 October
Light snow. High 46°, low 30°.
Pressure30.15 inHg
Wind17.3 mph NE
Humidity53%
Visibility—
Dew point24°
Tue, 2755° / 28°0
55 °
Chester, Tuesday, 27 October
Clear. High 55°, low 28°.
Pressure30.21 inHg
Wind11.7 mph NE
Humidity42%
Visibility—
Dew point24°
Wed, 2854° / 33°0
54 °
Chester, Wednesday, 28 October
Partly cloudy. High 54°, low 33°.
Pressure30.00 inHg
Wind9.7 mph NE
Humidity40%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2948° / 29°0.07
48 °
Chester, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high48°
Average low29°
Average precipitation0.07 in
Chance of precipitation32%
Record high70° (1964)
Record low8° (1989)
Fri, 3046° / 28°0.08
46 °
Chester, Friday, 30 October
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.08 in
Chance of precipitation40%
Record high68° (1962)
Record low4° (1989)
Sat, 3147° / 28°0.06
47 °
Chester, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high47°
Average low28°
Average precipitation0.06 in
Chance of precipitation37%
Record high67° (2014)
Record low11° (2019)
Sun, 0146° / 27°0.04
46 °
Chester, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high46°
Average low27°
Average precipitation0.04 in
Chance of precipitation23%
Record high64° (2014)
Record low-2° (2002)
Mon, 0245° / 27°0.06
45 °
Chester, Monday, 2 November
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.06 in
Chance of precipitation30%
Record high62° (1978)
Record low-5° (1991)
Tue, 0346° / 26°0.04
46 °
Chester, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high46°
Average low26°
Average precipitation0.04 in
Chance of precipitation18%
Record high63° (1962)
Record low-3° (1991)
Wed, 0446° / 27°0.05
46 °
Chester, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high46°
Average low27°
Average precipitation0.05 in
Chance of precipitation27%
Record high61° (2001)
Record low2° (2002)
Thu, 0546° / 28°0.06
46 °
Chester, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.06 in
Chance of precipitation38%
Record high62° (2020)
Record low0° (1961)
Fri, 0646° / 28°0.07
46 °
Chester, Friday, 6 November
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.07 in
Chance of precipitation37%
Record high67° (2020)
Record low2° (1971)
Sat, 0745° / 27°0.07
45 °
Chester, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.07 in
Chance of precipitation43%
Record high69° (1999)
Record low1° (1971)
Sun, 0843° / 26°0.1
43 °
Chester, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high43°
Average low26°
Average precipitation0.1 in
Chance of precipitation40%
Record high61° (1999)
Record low10° (1994)
Mon, 0942° / 25°0.09
42 °
Chester, Monday, 9 November
Climate normal for this date — 60-year average.
Average high42°
Average low25°
Average precipitation0.09 in
Chance of precipitation32%
Record high58° (2016)
Record low10° (1994)
Tue, 1042° / 24°0.06
42 °
Chester, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high42°
Average low24°
Average precipitation0.06 in
Chance of precipitation42%
Record high59° (2016)
Record low-3° (1986)
Wed, 1142° / 24°0.06
42 °
Chester, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high42°
Average low24°
Average precipitation0.06 in
Chance of precipitation30%
Record high61° (1999)
Record low-6° (2000)
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 Chester, 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 Chester, 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.