As of 00:55 MDT

Weather in Chester, ID

46°

Chester, Wednesday, 21 October, 00:55

Clear. Feels like 42°. High 68°, low 41°.

Pressure30.15 inHg

Wind7.6 mph NE

Humidity83%

Visibility6.2 mi

Dew point41°

See detailed hourly forecast

Monthly outlook for Chester, ID: average high 57.3°, average low 39.1°. That is 4.6° above the climate normal for October. Precipitation is expected on 2 days (about 0.8 inches), against a normal of 5 days and 0.9 inches. The warmest day looks like 21 October (68°), the coolest 26 October (32.4°).

57.3°/39.1°

Average high / low

+4.6°

Above normal

2 / 5

Wet days / normal

0.8 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
21 October – 30 October	57.2°	51°	+3.5°
31 October – 9 November	57.4°	45.1°	+6.9°
10 November – 19 November	at normal	39.8°	—

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).

Thu, 2267° / 45°

0.13

67 °

Chester, Thursday, 22 October

Rain. High 67°, low 45°.

Pressure29.91 inHg

Wind6.9 mph E

Humidity55%

Visibility6.2 mi

Dew point47°

Fri, 2352° / 42°

0.69

52 °

Chester, Friday, 23 October

Rain. High 52°, low 42°.

Pressure29.83 inHg

Wind9.3 mph S

Humidity93%

Visibility2.7 mi

Dew point47°

Sat, 2452° / 39°

52 °

Chester, Saturday, 24 October

Clear. High 52°, low 39°.

Pressure30.21 inHg

Wind1.7 mph S

Humidity57%

Visibility6.2 mi

Dew point34°

Sun, 2557° / 33°

57 °

Chester, Sunday, 25 October

Clear. High 57°, low 33°.

Pressure30.18 inHg

Wind7.4 mph W

Humidity61%

Visibility—

Dew point36°

Mon, 2654° / 32°

54 °

Chester, Monday, 26 October

Mostly clear. High 54°, low 32°.

Pressure30.33 inHg

Wind5.1 mph NE

Humidity58%

Visibility—

Dew point34°

Tue, 2754° / 37°

54 °

Chester, Tuesday, 27 October

Clear. High 54°, low 37°.

Pressure30.24 inHg

Wind6.9 mph W

Humidity54%

Visibility—

Dew point31°

Wed, 2855° / 37°

55 °

Chester, Wednesday, 28 October

Overcast. High 55°, low 37°.

Pressure30.18 inHg

Wind7.1 mph NE

Humidity40%

Visibility—

Dew point26°

Thu, 2956° / 38°

56 °

Chester, Thursday, 29 October

Clear. High 56°, low 38°.

Pressure30.06 inHg

Wind6.6 mph SW

Humidity38%

Visibility—

Dew point25°

Fri, 3055° / 37°

55 °

Chester, Friday, 30 October

Clear. High 55°, low 37°.

Pressure29.83 inHg

Wind14.4 mph SW

Humidity45%

Visibility—

Dew point27°

Sat, 3151° / 37°

51 °

Chester, Saturday, 31 October

Overcast. High 51°, low 37°.

Pressure29.74 inHg

Wind12.9 mph SW

Humidity42%

Visibility—

Dew point24°

Sun, 0153° / 34°

53 °

Chester, Sunday, 1 November

Partly cloudy. High 53°, low 34°.

Pressure30.06 inHg

Wind10.6 mph SW

Humidity30%

Visibility—

Dew point16°

Mon, 0258° / 39°

58 °

Chester, Monday, 2 November

Overcast. High 58°, low 39°.

Pressure30.24 inHg

Wind6.2 mph NE

Humidity37%

Visibility—

Dew point25°

Tue, 0362° / 44°

62 °

Chester, Tuesday, 3 November

Overcast. High 62°, low 44°.

Pressure30.27 inHg

Wind6.5 mph NE

Humidity31%

Visibility—

Dew point26°

Wed, 0463° / 46°

63 °

Chester, Wednesday, 4 November

Mostly clear. High 63°, low 46°.

Pressure30.15 inHg

Wind7.2 mph W

Humidity35%

Visibility—

Dew point30°

Thu, 0558° / 44°

58 °

Chester, Thursday, 5 November

Overcast. High 58°, low 44°.

Pressure30.30 inHg

Wind6.1 mph NE

Humidity40%

Visibility—

Dew point32°

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

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)

Tue, 1738° / 22°

0.06

38 °

Chester, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high38°

Average low22°

Average precipitation0.06 in

Chance of precipitation42%

Record high58° (1999)

Record low-10° (2014)

Wed, 1838° / 22°

0.08

38 °

Chester, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high38°

Average low22°

Average precipitation0.08 in

Chance of precipitation40%

Record high53° (1995)

Record low-4° (2014)

Thu, 1937° / 22°

0.05

37 °

Chester, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high37°

Average low22°

Average precipitation0.05 in

Chance of precipitation33%

Record high55° (2007)

Record low-5° (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 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.