As of 21:24 MDT

Weather in Chester, ID

46°

Chester, Sunday, 18 October, 21:24

Clear. Feels like 44°. High 66°, low 33°.

Pressure30.12 inHg

Wind4.3 mph NE

Humidity67%

Visibility6.2 mi

Dew point36°

See detailed hourly forecast

Monthly outlook for Chester, ID: average high 51.6°, average low 33.9°. That is 0.4° above the climate normal for October. Precipitation is expected on 5 days (about 1.5 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 19 October (67.8°), the coolest 30 October (19.7°).

51.6°/33.9°

Average high / low

+0.4°

Above normal

5 / 4

Wet days / normal

1.5 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
18 October – 27 October	58.7°	53.5°	+2.9°
28 October – 6 November	39.9°	46.5°	-3.7°
7 November – 16 November	at normal	41.5°	—

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).

Mon, 1968° / 34°

68 °

Chester, Monday, 19 October

Clear. High 68°, low 34°.

Pressure30.03 inHg

Wind1.9 mph SE

Humidity40%

Visibility6.2 mi

Dew point34°

Tue, 2064° / 38°

0.02

64 °

Chester, Tuesday, 20 October

Light rain. High 64°, low 38°.

Pressure30.06 inHg

Wind2.6 mph E

Humidity51%

Visibility6.2 mi

Dew point42°

Wed, 2164° / 43°

64 °

Chester, Wednesday, 21 October

Partly cloudy. High 64°, low 43°.

Pressure30.09 inHg

Wind3.7 mph NE

Humidity55%

Visibility6.2 mi

Dew point44°

Thu, 2265° / 46°

0.02

65 °

Chester, Thursday, 22 October

Light rain. High 65°, low 46°.

Pressure29.97 inHg

Wind3.5 mph NE

Humidity57%

Visibility6.2 mi

Dew point45°

Fri, 2349° / 41°

0.7

49 °

Chester, Friday, 23 October

Rain. High 49°, low 41°.

Pressure29.74 inHg

Wind19.5 mph S

Humidity81%

Visibility—

Dew point43°

Sat, 2445° / 36°

0.05

45 °

Chester, Saturday, 24 October

Light rain. High 45°, low 36°.

Pressure30.27 inHg

Wind7.1 mph SW

Humidity70%

Visibility—

Dew point30°

Sun, 2552° / 33°

52 °

Chester, Sunday, 25 October

Partly cloudy. High 52°, low 33°.

Pressure30.21 inHg

Wind9.6 mph SW

Humidity37%

Visibility—

Dew point19°

Mon, 2653° / 33°

53 °

Chester, Monday, 26 October

Clear. High 53°, low 33°.

Pressure30.06 inHg

Wind7.6 mph NE

Humidity44%

Visibility—

Dew point25°

Tue, 2762° / 36°

62 °

Chester, Tuesday, 27 October

Clear. High 62°, low 36°.

Pressure29.83 inHg

Wind7.8 mph NE

Humidity35%

Visibility—

Dew point23°

Wed, 2860° / 42°

0.12

60 °

Chester, Wednesday, 28 October

Light rain. High 60°, low 42°.

Pressure29.56 inHg

Wind18.5 mph SW

Humidity43%

Visibility—

Dew point35°

Thu, 2933° / 28°

0.4

33 °

Chester, Thursday, 29 October

Snow. High 33°, low 28°.

Pressure29.62 inHg

Wind23.5 mph SW

Humidity95%

Visibility—

Dew point29°

Fri, 3033° / 20°

0.02

33 °

Chester, Friday, 30 October

Light snow. High 33°, low 20°.

Pressure30.03 inHg

Wind7.6 mph SW

Humidity79%

Visibility—

Dew point25°

Sat, 3133° / 21°

0.01

33 °

Chester, Saturday, 31 October

Light snow. High 33°, low 21°.

Pressure30.39 inHg

Wind11.5 mph S

Humidity80%

Visibility—

Dew point23°

Sun, 0138° / 30°

38 °

Chester, Sunday, 1 November

Overcast. High 38°, low 30°.

Pressure30.24 inHg

Wind11.9 mph SW

Humidity81%

Visibility—

Dew point30°

Mon, 0242° / 28°

0.12

42 °

Chester, Monday, 2 November

Snow. High 42°, low 28°.

Pressure29.77 inHg

Wind18.3 mph SW

Humidity63%

Visibility—

Dew point26°

From day 17 onward the outlook is built from 60-year climate statistics

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)

Thu, 1242° / 23°

0.08

42 °

Chester, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high42°

Average low23°

Average precipitation0.08 in

Chance of precipitation32%

Record high63° (1999)

Record low-4° (2000)

Fri, 1341° / 25°

0.08

41 °

Chester, Friday, 13 November

Climate normal for this date — 60-year average.

Average high41°

Average low25°

Average precipitation0.08 in

Chance of precipitation42%

Record high59° (1999)

Record low-8° (2000)

Sat, 1440° / 24°

0.07

40 °

Chester, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high40°

Average low24°

Average precipitation0.07 in

Chance of precipitation37%

Record high63° (1999)

Record low-4° (1982)

Sun, 1540° / 22°

0.03

40 °

Chester, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high40°

Average low22°

Average precipitation0.03 in

Chance of precipitation25%

Record high64° (1999)

Record low-9° (1978)

Mon, 1639° / 22°

0.06

39 °

Chester, Monday, 16 November

Climate normal for this date — 60-year average.

Average high39°

Average low22°

Average precipitation0.06 in

Chance of precipitation30%

Record high60° (1999)

Record low-14° (2014)

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.