As of 07:37 MDT

Weather in Harlem, MT

53°

Harlem, Friday, 9 October, 07:37

Overcast. Feels like 51°. High 83°, low 53°.

Pressure29.56 inHg

Wind2.7 mph E

Humidity59%

Visibility6.2 mi

Dew point39°

See detailed hourly forecast

Monthly outlook for Harlem, MT: average high 55.8°, average low 38.5°. That is 0.5° below the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 9 October (82.7°), the coolest 13 October (29.5°).

55.8°/38.5°

Average high / low

−0.5°

Below normal

3 / 2

Wet days / normal

0.6 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 October – 18 October	53.5°	57.1°	-2.1°
19 October – 28 October	59.7°	54.1°	+3.1°
29 October – 7 November	at normal	47.3°	—

October records over 66 years

86.2°3 October 1987All-time high

-9.9°30 October 1991All-time low

Climate normals and records are computed from the nearest reference point — North Harlem Colony (4 mi).

Sat, 1053° / 38°

0.02

53 °

Harlem, Saturday, 10 October

Light rain. High 53°, low 38°.

Pressure29.71 inHg

Wind10.3 mph N

Humidity69%

Visibility6.2 mi

Dew point42°

Sun, 1141° / 35°

0.22

41 °

Harlem, Sunday, 11 October

Snow. High 41°, low 35°.

Pressure30.15 inHg

Wind10.3 mph NE

Humidity84%

Visibility5.5 mi

Dew point33°

Mon, 1238° / 34°

0.3

38 °

Harlem, Monday, 12 October

Snow. High 38°, low 34°.

Pressure30.21 inHg

Wind3 mph NE

Humidity89%

Visibility5.1 mi

Dew point33°

Tue, 1346° / 29°

46 °

Harlem, Tuesday, 13 October

Overcast. High 46°, low 29°.

Pressure30.18 inHg

Wind6 mph SE

Humidity79%

Visibility—

Dew point31°

Wed, 1458° / 31°

58 °

Harlem, Wednesday, 14 October

Clear. High 58°, low 31°.

Pressure30.00 inHg

Wind11.5 mph W

Humidity54%

Visibility—

Dew point30°

Thu, 1549° / 40°

49 °

Harlem, Thursday, 15 October

Overcast. High 49°, low 40°.

Pressure30.30 inHg

Wind26.8 mph NW

Humidity44%

Visibility—

Dew point26°

Fri, 1645° / 32°

45 °

Harlem, Friday, 16 October

Clear. High 45°, low 32°.

Pressure30.65 inHg

Wind20.8 mph NW

Humidity43%

Visibility—

Dew point18°

Sat, 1761° / 35°

61 °

Harlem, Saturday, 17 October

Overcast. High 61°, low 35°.

Pressure30.03 inHg

Wind18.9 mph NW

Humidity31%

Visibility—

Dew point21°

Sun, 1862° / 43°

62 °

Harlem, Sunday, 18 October

Overcast. High 62°, low 43°.

Pressure30.03 inHg

Wind12.3 mph SE

Humidity26%

Visibility—

Dew point20°

Mon, 1967° / 44°

67 °

Harlem, Monday, 19 October

Overcast. High 67°, low 44°.

Pressure29.77 inHg

Wind8.7 mph E

Humidity31%

Visibility—

Dew point27°

Tue, 2058° / 44°

58 °

Harlem, Tuesday, 20 October

Partly cloudy. High 58°, low 44°.

Pressure30.12 inHg

Wind10.4 mph NW

Humidity43%

Visibility—

Dew point31°

Wed, 2164° / 44°

0.05

64 °

Harlem, Wednesday, 21 October

Light rain. High 64°, low 44°.

Pressure29.77 inHg

Wind30.7 mph W

Humidity22%

Visibility—

Dew point22°

Thu, 2250° / 40°

50 °

Harlem, Thursday, 22 October

Overcast. High 50°, low 40°.

Pressure30.45 inHg

Wind27.4 mph NW

Humidity49%

Visibility—

Dew point28°

Fri, 2355° / 34°

55 °

Harlem, Friday, 23 October

Partly cloudy. High 55°, low 34°.

Pressure30.15 inHg

Wind14.5 mph SE

Humidity39%

Visibility—

Dew point23°

Sat, 2463° / 40°

63 °

Harlem, Saturday, 24 October

Partly cloudy. High 63°, low 40°.

Pressure29.97 inHg

Wind8.5 mph SE

Humidity27%

Visibility—

Dew point22°

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

Sun, 2554° / 35°

0.02

54 °

Harlem, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high54°

Average low35°

Average precipitation0.02 in

Chance of precipitation10%

Record high75° (1990)

Record low8° (2020)

Mon, 2652° / 35°

0.04

52 °

Harlem, Monday, 26 October

Climate normal for this date — 60-year average.

Average high52°

Average low35°

Average precipitation0.04 in

Chance of precipitation18%

Record high73° (1983)

Record low7° (2020)

Tue, 2751° / 33°

0.03

51 °

Harlem, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high51°

Average low33°

Average precipitation0.03 in

Chance of precipitation13%

Record high73° (2024)

Record low9° (2023)

Wed, 2850° / 31°

0.02

50 °

Harlem, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high50°

Average low31°

Average precipitation0.02 in

Chance of precipitation15%

Record high73° (1968)

Record low-1° (1984)

Thu, 2949° / 31°

0.02

49 °

Harlem, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high49°

Average low31°

Average precipitation0.02 in

Chance of precipitation17%

Record high75° (1968)

Record low-9° (1991)

Fri, 3049° / 30°

0.02

49 °

Harlem, Friday, 30 October

Climate normal for this date — 60-year average.

Average high49°

Average low30°

Average precipitation0.02 in

Chance of precipitation13%

Record high70° (1983)

Record low-10° (1991)

Sat, 3148° / 30°

0.03

48 °

Harlem, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high48°

Average low30°

Average precipitation0.03 in

Chance of precipitation17%

Record high68° (1987)

Record low-5° (1984)

Sun, 0147° / 30°

0.01

47 °

Harlem, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high47°

Average low30°

Average precipitation0.01 in

Chance of precipitation12%

Record high69° (1965)

Record low-21° (1984)

Mon, 0247° / 29°

0.02

47 °

Harlem, Monday, 2 November

Climate normal for this date — 60-year average.

Average high47°

Average low29°

Average precipitation0.02 in

Chance of precipitation15%

Record high68° (1965)

Record low-11° (1991)

Tue, 0347° / 30°

0.02

47 °

Harlem, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high47°

Average low30°

Average precipitation0.02 in

Chance of precipitation13%

Record high69° (2020)

Record low-14° (1991)

Wed, 0448° / 30°

0.02

48 °

Harlem, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high48°

Average low30°

Average precipitation0.02 in

Chance of precipitation15%

Record high70° (1975)

Record low8° (2003)

Thu, 0547° / 29°

0.03

47 °

Harlem, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high47°

Average low29°

Average precipitation0.03 in

Chance of precipitation20%

Record high71° (2020)

Record low-3° (2003)

Fri, 0645° / 28°

0.02

45 °

Harlem, Friday, 6 November

Climate normal for this date — 60-year average.

Average high45°

Average low28°

Average precipitation0.02 in

Chance of precipitation13%

Record high67° (2010)

Record low0° (1991)

Sat, 0745° / 28°

0.02

45 °

Harlem, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high45°

Average low28°

Average precipitation0.02 in

Chance of precipitation12%

Record high71° (2010)

Record low-4° (1991)

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 Harlem, MT 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 Harlem, MT 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.