As of 14:59 MDT

Weather in Harlem, MT

75°

Harlem, Thursday, 8 October, 14:59

Partly cloudy. Feels like 73°. High 75°, low 43°.

Pressure29.94 inHg

Wind5.1 mph NW

Humidity30%

Visibility6.2 mi

Dew point41°

See detailed hourly forecast

Monthly outlook for Harlem, MT: average high 56.5°, average low 39.3°. That is 0.3° below the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 9 October (80.8°), the coolest 16 October (26.1°).

56.5°/39.3°

Average high / low

−0.3°

Below normal

2 / 2

Wet days / normal

0.3 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 October – 17 October	52.6°	57.5°	-2.7°
18 October – 27 October	62.9°	54.9°	+4.4°
28 October – 6 November	at normal	47.8°	—

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).

Fri, 0981° / 48°

81 °

Harlem, Friday, 9 October

Partly cloudy. High 81°, low 48°.

Pressure29.47 inHg

Wind4.4 mph E

Humidity27%

Visibility6.2 mi

Dew point37°

Sat, 1053° / 42°

53 °

Harlem, Saturday, 10 October

Overcast. High 53°, low 42°.

Pressure29.80 inHg

Wind11.7 mph NW

Humidity61%

Visibility6.2 mi

Dew point36°

Sun, 1142° / 37°

0.14

42 °

Harlem, Sunday, 11 October

Snow. High 42°, low 37°.

Pressure30.24 inHg

Wind9.4 mph NE

Humidity80%

Visibility4.7 mi

Dew point30°

Mon, 1241° / 36°

41 °

Harlem, Monday, 12 October

Overcast. High 41°, low 36°.

Pressure30.18 inHg

Wind9.8 mph SE

Humidity71%

Visibility6.2 mi

Dew point29°

Tue, 1351° / 37°

51 °

Harlem, Tuesday, 13 October

Overcast. High 51°, low 37°.

Pressure30.06 inHg

Wind8.1 mph SE

Humidity70%

Visibility—

Dew point37°

Wed, 1448° / 39°

48 °

Harlem, Wednesday, 14 October

Overcast. High 48°, low 39°.

Pressure29.71 inHg

Wind19.3 mph NW

Humidity78%

Visibility—

Dew point40°

Thu, 1539° / 31°

0.14

39 °

Harlem, Thursday, 15 October

Snow. High 39°, low 31°.

Pressure30.42 inHg

Wind22.9 mph NW

Humidity75%

Visibility—

Dew point30°

Fri, 1642° / 26°

42 °

Harlem, Friday, 16 October

Clear. High 42°, low 26°.

Pressure30.71 inHg

Wind7.7 mph W

Humidity53%

Visibility—

Dew point20°

Sat, 1754° / 30°

54 °

Harlem, Saturday, 17 October

Clear. High 54°, low 30°.

Pressure30.39 inHg

Wind9.1 mph SE

Humidity38%

Visibility—

Dew point21°

Sun, 1861° / 41°

61 °

Harlem, Sunday, 18 October

Clear. High 61°, low 41°.

Pressure29.88 inHg

Wind9.3 mph E

Humidity44%

Visibility—

Dew point33°

Mon, 1956° / 42°

56 °

Harlem, Monday, 19 October

Overcast. High 56°, low 42°.

Pressure30.03 inHg

Wind17.5 mph W

Humidity55%

Visibility—

Dew point34°

Tue, 2061° / 39°

61 °

Harlem, Tuesday, 20 October

Clear. High 61°, low 39°.

Pressure30.06 inHg

Wind11.5 mph W

Humidity52%

Visibility—

Dew point35°

Wed, 2162° / 45°

62 °

Harlem, Wednesday, 21 October

Overcast. High 62°, low 45°.

Pressure30.00 inHg

Wind14.6 mph W

Humidity42%

Visibility—

Dew point33°

Thu, 2269° / 46°

69 °

Harlem, Thursday, 22 October

Clear. High 69°, low 46°.

Pressure30.03 inHg

Wind11.1 mph S

Humidity38%

Visibility—

Dew point33°

Fri, 2368° / 47°

68 °

Harlem, Friday, 23 October

Clear. High 68°, low 47°.

Pressure29.85 inHg

Wind12.8 mph W

Humidity28%

Visibility—

Dew point27°

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

Sat, 2454° / 34°

0.02

54 °

Harlem, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high54°

Average low34°

Average precipitation0.02 in

Chance of precipitation15%

Record high77° (2007)

Record low15° (2020)

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)

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.