As of 12:53 MDT

Weather in Colstrip, MT

82°

Colstrip, Friday, 9 October, 12:53

Overcast. Feels like 80°. High 84°, low 49°.

Pressure29.53 inHg

Wind7.4 mph SW

Humidity22%

Visibility6.2 mi

Dew point39°

See detailed hourly forecast

Monthly outlook for Colstrip, MT: average high 59.6°, average low 41.5°. That is 0.3° above the climate normal for October. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 9 October (84.1°), the coolest 16 October (33.4°).

59.6°/41.5°

Average high / low

+0.3°

Above normal

3 / 3

Wet days / normal

1.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 October – 18 October	57.7°	59.5°	-1°
19 October – 28 October	62.9°	57.1°	+3.2°
29 October – 7 November	at normal	50.8°	—

October records over 66 years

92.5°1 October 2011All-time high

-18.4°30 October 1991All-time low

Sat, 1070° / 50°

0.25

70 °

Colstrip, Saturday, 10 October

Heavy rain. High 70°, low 50°.

Pressure29.62 inHg

Wind7.7 mph N

Humidity37%

Visibility6.2 mi

Dew point37°

Sun, 1147° / 41°

0.43

47 °

Colstrip, Sunday, 11 October

Rain. High 47°, low 41°.

Pressure29.94 inHg

Wind10.7 mph NE

Humidity94%

Visibility3.8 mi

Dew point43°

Mon, 1240° / 38°

0.32

40 °

Colstrip, Monday, 12 October

Rain. High 40°, low 38°.

Pressure30.12 inHg

Wind8.6 mph NW

Humidity96%

Visibility6.2 mi

Dew point36°

Tue, 1353° / 34°

53 °

Colstrip, Tuesday, 13 October

Mostly clear. High 53°, low 34°.

Pressure30.12 inHg

Wind3.8 mph SE

Humidity61%

Visibility6.2 mi

Dew point35°

Wed, 1458° / 42°

58 °

Colstrip, Wednesday, 14 October

Light rain. High 58°, low 42°.

Pressure30.00 inHg

Wind6 mph SW

Humidity70%

Visibility—

Dew point42°

Thu, 1552° / 43°

52 °

Colstrip, Thursday, 15 October

Partly cloudy. High 52°, low 43°.

Pressure30.24 inHg

Wind24.4 mph NW

Humidity51%

Visibility—

Dew point32°

Fri, 1644° / 33°

44 °

Colstrip, Friday, 16 October

Clear. High 44°, low 33°.

Pressure30.65 inHg

Wind23.6 mph NW

Humidity39%

Visibility—

Dew point17°

Sat, 1767° / 34°

67 °

Colstrip, Saturday, 17 October

Clear. High 67°, low 34°.

Pressure30.03 inHg

Wind16.1 mph NW

Humidity21%

Visibility—

Dew point19°

Sun, 1862° / 43°

62 °

Colstrip, Sunday, 18 October

Overcast. High 62°, low 43°.

Pressure30.06 inHg

Wind9.3 mph SE

Humidity27%

Visibility—

Dew point21°

Mon, 1973° / 47°

73 °

Colstrip, Monday, 19 October

Partly cloudy. High 73°, low 47°.

Pressure29.83 inHg

Wind4.9 mph S

Humidity22%

Visibility—

Dew point24°

Tue, 2060° / 49°

60 °

Colstrip, Tuesday, 20 October

Overcast. High 60°, low 49°.

Pressure30.06 inHg

Wind15.8 mph NW

Humidity44%

Visibility—

Dew point35°

Wed, 2168° / 45°

68 °

Colstrip, Wednesday, 21 October

Light rain. High 68°, low 45°.

Pressure29.94 inHg

Wind21.8 mph N

Humidity27%

Visibility—

Dew point27°

Thu, 2249° / 39°

49 °

Colstrip, Thursday, 22 October

Overcast. High 49°, low 39°.

Pressure30.42 inHg

Wind24.4 mph NW

Humidity49%

Visibility—

Dew point28°

Fri, 2358° / 34°

58 °

Colstrip, Friday, 23 October

Clear. High 58°, low 34°.

Pressure30.21 inHg

Wind10.7 mph SE

Humidity32%

Visibility—

Dew point20°

Sat, 2470° / 46°

70 °

Colstrip, Saturday, 24 October

Clear. High 70°, low 46°.

Pressure29.94 inHg

Wind10.4 mph W

Humidity18%

Visibility—

Dew point19°

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

Sun, 2557° / 36°

0.02

57 °

Colstrip, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high57°

Average low36°

Average precipitation0.02 in

Chance of precipitation15%

Record high76° (1979)

Record low-1° (2020)

Mon, 2656° / 35°

0.04

56 °

Colstrip, Monday, 26 October

Climate normal for this date — 60-year average.

Average high56°

Average low35°

Average precipitation0.04 in

Chance of precipitation20%

Record high76° (1966)

Record low-2° (2020)

Tue, 2754° / 33°

0.03

54 °

Colstrip, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high54°

Average low33°

Average precipitation0.03 in

Chance of precipitation18%

Record high75° (1986)

Record low5° (2023)

Wed, 2853° / 34°

0.05

53 °

Colstrip, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high53°

Average low34°

Average precipitation0.05 in

Chance of precipitation25%

Record high79° (1990)

Record low8° (2023)

Thu, 2952° / 33°

0.06

52 °

Colstrip, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high52°

Average low33°

Average precipitation0.06 in

Chance of precipitation32%

Record high75° (1968)

Record low-5° (1991)

Fri, 3052° / 31°

0.03

52 °

Colstrip, Friday, 30 October

Climate normal for this date — 60-year average.

Average high52°

Average low31°

Average precipitation0.03 in

Chance of precipitation18%

Record high73° (1990)

Record low-18° (1991)

Sat, 3151° / 33°

0.03

51 °

Colstrip, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high51°

Average low33°

Average precipitation0.03 in

Chance of precipitation18%

Record high77° (1999)

Record low3° (1972)

Sun, 0151° / 32°

0.03

51 °

Colstrip, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high51°

Average low32°

Average precipitation0.03 in

Chance of precipitation17%

Record high73° (1965)

Record low2° (1991)

Mon, 0250° / 31°

0.02

50 °

Colstrip, Monday, 2 November

Climate normal for this date — 60-year average.

Average high50°

Average low31°

Average precipitation0.02 in

Chance of precipitation20%

Record high76° (1965)

Record low-8° (1995)

Tue, 0350° / 31°

0.02

50 °

Colstrip, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high50°

Average low31°

Average precipitation0.02 in

Chance of precipitation15%

Record high70° (1981)

Record low-16° (1991)

Wed, 0452° / 32°

0.03

52 °

Colstrip, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high52°

Average low32°

Average precipitation0.03 in

Chance of precipitation15%

Record high73° (1983)

Record low9° (1995)

Thu, 0551° / 32°

0.03

51 °

Colstrip, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high51°

Average low32°

Average precipitation0.03 in

Chance of precipitation25%

Record high73° (2020)

Record low5° (1961)

Fri, 0649° / 31°

0.04

49 °

Colstrip, Friday, 6 November

Climate normal for this date — 60-year average.

Average high49°

Average low31°

Average precipitation0.04 in

Chance of precipitation20%

Record high74° (2010)

Record low9° (1991)

Sat, 0749° / 31°

0.03

49 °

Colstrip, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high49°

Average low31°

Average precipitation0.03 in

Chance of precipitation17%

Record high73° (1999)

Record low1° (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 Colstrip, 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 Colstrip, 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.