As of 02:13 MDT

Weather in Chester, ID

44°

Chester, Tuesday, 20 October, 02:13

Light rain. Feels like 40°. High 67°, low 40°.

Pressure30.09 inHg

Wind6.4 mph NE

Humidity77%

Visibility6.2 mi

Dew point37°

See detailed hourly forecast

Monthly outlook for Chester, ID: average high 56.8°, average low 40.3°. That is 3.9° above the climate normal for October. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 21 October (68.3°), the coolest 25 October (33.1°).

56.8°/40.3°

Average high / low

+3.9°

Above normal

4 / 4

Wet days / normal

1.1 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
20 October – 29 October	58.9°	52°	+3.9°
30 October – 8 November	53.2°	45.5°	+4.3°
9 November – 18 November	at normal	40.4°	—

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, 2168° / 36°

68 °

Chester, Wednesday, 21 October

Clear. High 68°, low 36°.

Pressure30.06 inHg

Wind2.7 mph E

Humidity51%

Visibility6.2 mi

Dew point44°

Thu, 2268° / 45°

0.09

68 °

Chester, Thursday, 22 October

Rain. High 68°, low 45°.

Pressure29.94 inHg

Wind3.4 mph NE

Humidity51%

Visibility6.2 mi

Dew point45°

Fri, 2350° / 43°

0.7

50 °

Chester, Friday, 23 October

Rain. High 50°, low 43°.

Pressure29.83 inHg

Wind8.5 mph S

Humidity87%

Visibility2.1 mi

Dew point45°

Sat, 2453° / 42°

0.01

53 °

Chester, Saturday, 24 October

Light rain. High 53°, low 42°.

Pressure30.18 inHg

Wind5 mph S

Humidity59%

Visibility—

Dew point35°

Sun, 2554° / 33°

54 °

Chester, Sunday, 25 October

Clear. High 54°, low 33°.

Pressure30.24 inHg

Wind7.1 mph SW

Humidity59%

Visibility—

Dew point33°

Mon, 2657° / 37°

57 °

Chester, Monday, 26 October

Clear. High 57°, low 37°.

Pressure30.21 inHg

Wind7.2 mph NE

Humidity36%

Visibility—

Dew point24°

Tue, 2758° / 40°

58 °

Chester, Tuesday, 27 October

Overcast. High 58°, low 40°.

Pressure30.21 inHg

Wind9.9 mph NE

Humidity41%

Visibility—

Dew point28°

Wed, 2857° / 38°

57 °

Chester, Wednesday, 28 October

Overcast. High 57°, low 38°.

Pressure30.15 inHg

Wind8 mph NE

Humidity35%

Visibility—

Dew point24°

Thu, 2958° / 42°

58 °

Chester, Thursday, 29 October

Overcast. High 58°, low 42°.

Pressure29.97 inHg

Wind6.6 mph W

Humidity39%

Visibility—

Dew point27°

Fri, 3058° / 42°

0.07

58 °

Chester, Friday, 30 October

Light rain. High 58°, low 42°.

Pressure29.85 inHg

Wind7.3 mph NE

Humidity52%

Visibility—

Dew point35°

Sat, 3151° / 44°

0.24

51 °

Chester, Saturday, 31 October

Light rain. High 51°, low 44°.

Pressure29.91 inHg

Wind10.3 mph SW

Humidity79%

Visibility—

Dew point42°

Sun, 0153° / 40°

0.02

53 °

Chester, Sunday, 1 November

Light rain. High 53°, low 40°.

Pressure30.21 inHg

Wind8.2 mph SW

Humidity53%

Visibility—

Dew point32°

Mon, 0255° / 37°

55 °

Chester, Monday, 2 November

Overcast. High 55°, low 37°.

Pressure30.27 inHg

Wind6.5 mph NE

Humidity49%

Visibility—

Dew point30°

Tue, 0356° / 42°

56 °

Chester, Tuesday, 3 November

Overcast. High 56°, low 42°.

Pressure29.97 inHg

Wind6.9 mph NE

Humidity42%

Visibility—

Dew point29°

Wed, 0446° / 43°

46 °

Chester, Wednesday, 4 November

Overcast. High 46°, low 43°.

Pressure30.00 inHg

Wind14.1 mph SW

Humidity68%

Visibility—

Dew point36°

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

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)

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)

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.