As of 19:36 MDT

Weather in Turtle Lake, MT

47°

Turtle Lake, Monday, 19 October, 19:36

Overcast. Feels like 47°. High 61°, low 35°.

Pressure29.94 inHg

Wind1.1 mph NE

Humidity65%

Visibility6.2 mi

Dew point36°

See detailed hourly forecast

Monthly outlook for Turtle Lake, MT: average high 54.1°, average low 40.8°. That is 2.4° above the climate normal for October. Precipitation is expected on 2 days (about 0.8 inches), against a normal of 7 days and 1.6 inches. The warmest day looks like 20 October (64.8°), the coolest 19 October (34.8°).

54.1°/40.8°

Average high / low

+2.4°

Above normal

2 / 7

Wet days / normal

0.8 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
19 October – 28 October	54.2°	51.8°	+1.3°
29 October – 7 November	53.9°	45.4°	+4.7°
8 November – 17 November	at normal	41.6°	—

October records over 66 years

81.7°1 October 1992All-time high

6.4°26 October 2020All-time low

Tue, 2065° / 36°

65 °

Turtle Lake, Tuesday, 20 October

Partly cloudy. High 65°, low 36°.

Pressure30.09 inHg

Wind2.8 mph NW

Humidity71%

Visibility—

Dew point45°

Wed, 2161° / 36°

61 °

Turtle Lake, Wednesday, 21 October

Partly cloudy. High 61°, low 36°.

Pressure30.00 inHg

Wind2.8 mph W

Humidity75%

Visibility—

Dew point47°

Thu, 2260° / 48°

60 °

Turtle Lake, Thursday, 22 October

Partly cloudy. High 60°, low 48°.

Pressure29.88 inHg

Wind3.6 mph NW

Humidity68%

Visibility—

Dew point47°

Fri, 2353° / 47°

0.63

53 °

Turtle Lake, Friday, 23 October

Rain. High 53°, low 47°.

Pressure29.85 inHg

Wind1.1 mph W

Humidity92%

Visibility2.7 mi

Dew point48°

Sat, 2451° / 43°

0.03

51 °

Turtle Lake, Saturday, 24 October

Light rain. High 51°, low 43°.

Pressure30.21 inHg

Wind4.8 mph SW

Humidity69%

Visibility—

Dew point37°

Sun, 2547° / 40°

47 °

Turtle Lake, Sunday, 25 October

Mostly clear. High 47°, low 40°.

Pressure30.30 inHg

Wind6.5 mph N

Humidity58%

Visibility—

Dew point31°

Mon, 2650° / 40°

50 °

Turtle Lake, Monday, 26 October

Overcast. High 50°, low 40°.

Pressure30.33 inHg

Wind6 mph N

Humidity48%

Visibility—

Dew point27°

Tue, 2746° / 37°

46 °

Turtle Lake, Tuesday, 27 October

Clear. High 46°, low 37°.

Pressure30.45 inHg

Wind5.6 mph NE

Humidity51%

Visibility—

Dew point27°

Wed, 2848° / 38°

48 °

Turtle Lake, Wednesday, 28 October

Clear. High 48°, low 38°.

Pressure30.21 inHg

Wind3.5 mph NW

Humidity58%

Visibility—

Dew point31°

Thu, 2953° / 40°

53 °

Turtle Lake, Thursday, 29 October

Overcast. High 53°, low 40°.

Pressure29.97 inHg

Wind2.8 mph E

Humidity47%

Visibility—

Dew point29°

Fri, 3052° / 41°

52 °

Turtle Lake, Friday, 30 October

Clear. High 52°, low 41°.

Pressure29.88 inHg

Wind2.9 mph NW

Humidity51%

Visibility—

Dew point31°

Sat, 3156° / 45°

0.07

56 °

Turtle Lake, Saturday, 31 October

Light rain. High 56°, low 45°.

Pressure29.88 inHg

Wind4.7 mph SE

Humidity56%

Visibility—

Dew point36°

Sun, 0155° / 42°

55 °

Turtle Lake, Sunday, 1 November

Partly cloudy. High 55°, low 42°.

Pressure30.21 inHg

Wind4.6 mph E

Humidity62%

Visibility—

Dew point36°

Mon, 0256° / 43°

56 °

Turtle Lake, Monday, 2 November

Overcast. High 56°, low 43°.

Pressure30.15 inHg

Wind3.4 mph W

Humidity45%

Visibility—

Dew point30°

Tue, 0351° / 44°

0.02

51 °

Turtle Lake, Tuesday, 3 November

Light rain. High 51°, low 44°.

Pressure29.97 inHg

Wind4.3 mph S

Humidity51%

Visibility—

Dew point32°

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

Wed, 0445° / 35°

0.14

45 °

Turtle Lake, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high45°

Average low35°

Average precipitation0.14 in

Chance of precipitation62%

Record high59° (1975)

Record low9° (1973)

Thu, 0545° / 34°

0.12

45 °

Turtle Lake, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high45°

Average low34°

Average precipitation0.12 in

Chance of precipitation63%

Record high61° (1980)

Record low15° (2003)

Fri, 0644° / 33°

0.14

44 °

Turtle Lake, Friday, 6 November

Climate normal for this date — 60-year average.

Average high44°

Average low33°

Average precipitation0.14 in

Chance of precipitation62%

Record high62° (2010)

Record low17° (2003)

Sat, 0743° / 33°

0.15

43 °

Turtle Lake, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high43°

Average low33°

Average precipitation0.15 in

Chance of precipitation57%

Record high58° (1978)

Record low16° (2017)

Sun, 0843° / 32°

0.1

43 °

Turtle Lake, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high43°

Average low32°

Average precipitation0.1 in

Chance of precipitation53%

Record high59° (2016)

Record low16° (1982)

Mon, 0943° / 31°

0.12

43 °

Turtle Lake, Monday, 9 November

Climate normal for this date — 60-year average.

Average high43°

Average low31°

Average precipitation0.12 in

Chance of precipitation52%

Record high62° (2016)

Record low9° (1986)

Tue, 1041° / 31°

0.1

41 °

Turtle Lake, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high41°

Average low31°

Average precipitation0.1 in

Chance of precipitation57%

Record high59° (2016)

Record low4° (1986)

Wed, 1141° / 30°

0.11

41 °

Turtle Lake, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high41°

Average low30°

Average precipitation0.11 in

Chance of precipitation45%

Record high59° (2016)

Record low7° (2014)

Thu, 1242° / 31°

0.11

42 °

Turtle Lake, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high42°

Average low31°

Average precipitation0.11 in

Chance of precipitation50%

Record high62° (1999)

Record low9° (2014)

Fri, 1342° / 31°

0.09

42 °

Turtle Lake, Friday, 13 November

Climate normal for this date — 60-year average.

Average high42°

Average low31°

Average precipitation0.09 in

Chance of precipitation53%

Record high62° (2025)

Record low12° (2014)

Sat, 1441° / 31°

0.11

41 °

Turtle Lake, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high41°

Average low31°

Average precipitation0.11 in

Chance of precipitation52%

Record high59° (1999)

Record low13° (2014)

Sun, 1542° / 30°

0.06

42 °

Turtle Lake, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high42°

Average low30°

Average precipitation0.06 in

Chance of precipitation35%

Record high61° (2021)

Record low12° (2014)

Mon, 1641° / 31°

0.13

41 °

Turtle Lake, Monday, 16 November

Climate normal for this date — 60-year average.

Average high41°

Average low31°

Average precipitation0.13 in

Chance of precipitation52%

Record high57° (2025)

Record low13° (1996)

Tue, 1740° / 31°

0.11

40 °

Turtle Lake, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high40°

Average low31°

Average precipitation0.11 in

Chance of precipitation62%

Record high56° (1976)

Record low16° (1968)

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 Turtle Lake, 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 Turtle Lake, 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.