As of 02:23 MDT

Weather in Turtle Lake, MT

38°

Turtle Lake, Monday, 19 October, 02:23

Overcast. Feels like 38°. High 64°, low 36°.

Pressure30.00 inHg

Wind1 mph E

Humidity86%

Visibility6.2 mi

Dew point34°

See detailed hourly forecast

Monthly outlook for Turtle Lake, MT: average high 49.8°, average low 37.6°. That is 0.1° above the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 7 days and 1.6 inches. The warmest day looks like 19 October (64.4°), the coolest 28 October (28.5°).

49.8°/37.6°

Average high / low

+0.1°

Above normal

3 / 7

Wet days / normal

0.9 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
19 October – 28 October	51.8°	51.8°	-0°
29 October – 7 November	46.6°	45.4°	+0.6°
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, 2063° / 39°

63 °

Turtle Lake, Tuesday, 20 October

Overcast. High 63°, low 39°.

Pressure30.09 inHg

Wind2.5 mph NW

Humidity67%

Visibility6.2 mi

Dew point44°

Wed, 2160° / 47°

60 °

Turtle Lake, Wednesday, 21 October

Partly cloudy. High 60°, low 47°.

Pressure30.00 inHg

Wind3 mph NW

Humidity73%

Visibility—

Dew point47°

Thu, 2258° / 49°

58 °

Turtle Lake, Thursday, 22 October

Overcast. High 58°, low 49°.

Pressure29.85 inHg

Wind3.9 mph NW

Humidity72%

Visibility—

Dew point47°

Fri, 2351° / 43°

0.68

51 °

Turtle Lake, Friday, 23 October

Rain. High 51°, low 43°.

Pressure29.85 inHg

Wind10.4 mph S

Humidity93%

Visibility—

Dew point44°

Sat, 2447° / 39°

0.02

47 °

Turtle Lake, Saturday, 24 October

Light rain. High 47°, low 39°.

Pressure30.15 inHg

Wind11.1 mph S

Humidity58%

Visibility—

Dew point30°

Sun, 2546° / 38°

0.09

46 °

Turtle Lake, Sunday, 25 October

Light rain. High 46°, low 38°.

Pressure30.12 inHg

Wind4.4 mph S

Humidity33%

Visibility—

Dew point17°

Mon, 2645° / 41°

0.01

45 °

Turtle Lake, Monday, 26 October

Light rain. High 45°, low 41°.

Pressure30.27 inHg

Wind7.6 mph N

Humidity74%

Visibility—

Dew point35°

Tue, 2742° / 31°

42 °

Turtle Lake, Tuesday, 27 October

Clear. High 42°, low 31°.

Pressure30.50 inHg

Wind8.3 mph NE

Humidity50%

Visibility—

Dew point20°

Wed, 2842° / 28°

42 °

Turtle Lake, Wednesday, 28 October

Clear. High 42°, low 28°.

Pressure30.24 inHg

Wind3.4 mph NW

Humidity43%

Visibility—

Dew point17°

Thu, 2946° / 35°

46 °

Turtle Lake, Thursday, 29 October

Overcast. High 46°, low 35°.

Pressure29.91 inHg

Wind3.6 mph NE

Humidity50%

Visibility—

Dew point25°

Fri, 3051° / 38°

51 °

Turtle Lake, Friday, 30 October

Clear. High 51°, low 38°.

Pressure29.88 inHg

Wind8.9 mph SW

Humidity53%

Visibility—

Dew point29°

Sat, 3153° / 37°

53 °

Turtle Lake, Saturday, 31 October

Overcast. High 53°, low 37°.

Pressure29.91 inHg

Wind12.2 mph SW

Humidity54%

Visibility—

Dew point30°

Sun, 0146° / 36°

0.06

46 °

Turtle Lake, Sunday, 1 November

Snow. High 46°, low 36°.

Pressure29.91 inHg

Wind8.5 mph SW

Humidity63%

Visibility—

Dew point33°

Mon, 0242° / 33°

42 °

Turtle Lake, Monday, 2 November

Overcast. High 42°, low 33°.

Pressure30.24 inHg

Wind4.3 mph NW

Humidity64%

Visibility—

Dew point27°

Tue, 0342° / 33°

42 °

Turtle Lake, Tuesday, 3 November

Overcast. High 42°, low 33°.

Pressure30.18 inHg

Wind3.7 mph NW

Humidity55%

Visibility—

Dew point24°

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.