As of 07:21 MDT

Weather in Fallon, MT

46°

Fallon, Wednesday, 7 October, 07:21

Overcast. Feels like 44°. High 70°, low 45°.

Pressure30.06 inHg

Wind3.3 mph W

Humidity73%

Visibility6.2 mi

Dew point37°

See detailed hourly forecast

Monthly outlook for Fallon, MT: average high 58.7°, average low 41.4°. That is 0.6° below the climate normal for October. Precipitation is expected on 2 days (about 0.9 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 9 October (80.8°), the coolest 12 October (32.4°).

58.7°/41.4°

Average high / low

−0.6°

Below normal

2 / 3

Wet days / normal

0.9 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
7 October – 16 October	59.2°	60.5°	-0.7°
17 October – 26 October	57.7°	57.6°	+0°
27 October – 5 November	at normal	50.8°	—

October records over 66 years

92.8°1 October 2011All-time high

-12.1°30 October 1991All-time low

Thu, 0874° / 44°

74 °

Fallon, Thursday, 8 October

Clear. High 74°, low 44°.

Pressure29.97 inHg

Wind4.4 mph SW

Humidity42%

Visibility6.2 mi

Dew point41°

Fri, 0981° / 48°

81 °

Fallon, Friday, 9 October

Overcast. High 81°, low 48°.

Pressure29.56 inHg

Wind9.1 mph SW

Humidity30%

Visibility6.2 mi

Dew point39°

Sat, 1066° / 51°

66 °

Fallon, Saturday, 10 October

Overcast. High 66°, low 51°.

Pressure29.56 inHg

Wind12.4 mph N

Humidity42%

Visibility6.2 mi

Dew point41°

Sun, 1146° / 34°

0.24

46 °

Fallon, Sunday, 11 October

Snow. High 46°, low 34°.

Pressure30.18 inHg

Wind15.2 mph N

Humidity76%

Visibility—

Dew point32°

Mon, 1234° / 32°

0.63

34 °

Fallon, Monday, 12 October

Snow. High 34°, low 32°.

Pressure30.39 inHg

Wind9.9 mph NE

Humidity94%

Visibility—

Dew point31°

Tue, 1361° / 34°

61 °

Fallon, Tuesday, 13 October

Clear. High 61°, low 34°.

Pressure30.03 inHg

Wind13 mph S

Humidity60%

Visibility—

Dew point36°

Wed, 1470° / 51°

70 °

Fallon, Wednesday, 14 October

Overcast. High 70°, low 51°.

Pressure29.50 inHg

Wind17.7 mph N

Humidity41%

Visibility—

Dew point40°

Thu, 1551° / 39°

0.03

51 °

Fallon, Thursday, 15 October

Light rain. High 51°, low 39°.

Pressure30.03 inHg

Wind24.9 mph NW

Humidity70%

Visibility—

Dew point33°

Fri, 1641° / 37°

0.02

41 °

Fallon, Friday, 16 October

Snow. High 41°, low 37°.

Pressure30.36 inHg

Wind22.4 mph NW

Humidity87%

Visibility—

Dew point34°

Sat, 1747° / 39°

47 °

Fallon, Saturday, 17 October

Overcast. High 47°, low 39°.

Pressure30.30 inHg

Wind8.1 mph NW

Humidity70%

Visibility—

Dew point33°

Sun, 1858° / 38°

58 °

Fallon, Sunday, 18 October

Clear. High 58°, low 38°.

Pressure30.12 inHg

Wind7 mph SW

Humidity44%

Visibility—

Dew point29°

Mon, 1965° / 43°

65 °

Fallon, Monday, 19 October

Clear. High 65°, low 43°.

Pressure29.94 inHg

Wind8 mph SE

Humidity41%

Visibility—

Dew point32°

Tue, 2061° / 44°

61 °

Fallon, Tuesday, 20 October

Clear. High 61°, low 44°.

Pressure30.09 inHg

Wind14.9 mph NW

Humidity50%

Visibility—

Dew point38°

Wed, 2155° / 44°

55 °

Fallon, Wednesday, 21 October

Mostly clear. High 55°, low 44°.

Pressure30.42 inHg

Wind6.1 mph W

Humidity37%

Visibility—

Dew point26°

Thu, 2260° / 40°

60 °

Fallon, Thursday, 22 October

Overcast. High 60°, low 40°.

Pressure30.06 inHg

Wind9.1 mph NW

Humidity30%

Visibility—

Dew point22°

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

Fri, 2357° / 37°

0.03

57 °

Fallon, Friday, 23 October

Climate normal for this date — 60-year average.

Average high57°

Average low37°

Average precipitation0.03 in

Chance of precipitation17%

Record high77° (1973)

Record low10° (2020)

Sat, 2456° / 36°

0.02

56 °

Fallon, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high56°

Average low36°

Average precipitation0.02 in

Chance of precipitation8%

Record high76° (2007)

Record low16° (2020)

Sun, 2556° / 36°

0.01

56 °

Fallon, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high56°

Average low36°

Average precipitation0.01 in

Chance of precipitation7%

Record high74° (2017)

Record low5° (2020)

Mon, 2655° / 36°

0.03

55 °

Fallon, Monday, 26 October

Climate normal for this date — 60-year average.

Average high55°

Average low36°

Average precipitation0.03 in

Chance of precipitation15%

Record high74° (1966)

Record low2° (2020)

Tue, 2754° / 34°

0.02

54 °

Fallon, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high54°

Average low34°

Average precipitation0.02 in

Chance of precipitation8%

Record high76° (1983)

Record low3° (2023)

Wed, 2853° / 34°

0.04

53 °

Fallon, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high53°

Average low34°

Average precipitation0.04 in

Chance of precipitation17%

Record high75° (1990)

Record low4° (2023)

Thu, 2952° / 34°

0.05

52 °

Fallon, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high52°

Average low34°

Average precipitation0.05 in

Chance of precipitation22%

Record high74° (1968)

Record low6° (1991)

Fri, 3051° / 32°

0.02

51 °

Fallon, Friday, 30 October

Climate normal for this date — 60-year average.

Average high51°

Average low32°

Average precipitation0.02 in

Chance of precipitation13%

Record high70° (1983)

Record low-12° (1991)

Sat, 3151° / 33°

0.04

51 °

Fallon, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high51°

Average low33°

Average precipitation0.04 in

Chance of precipitation13%

Record high77° (1990)

Record low2° (1991)

Sun, 0150° / 33°

0.02

50 °

Fallon, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high50°

Average low33°

Average precipitation0.02 in

Chance of precipitation10%

Record high71° (1965)

Record low5° (1984)

Mon, 0249° / 32°

0.02

49 °

Fallon, Monday, 2 November

Climate normal for this date — 60-year average.

Average high49°

Average low32°

Average precipitation0.02 in

Chance of precipitation13%

Record high73° (1965)

Record low-2° (1991)

Tue, 0349° / 32°

0.02

49 °

Fallon, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high49°

Average low32°

Average precipitation0.02 in

Chance of precipitation17%

Record high69° (1981)

Record low-9° (1991)

Wed, 0451° / 32°

0.02

51 °

Fallon, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high51°

Average low32°

Average precipitation0.02 in

Chance of precipitation17%

Record high71° (1965)

Record low10° (1991)

Thu, 0549° / 31°

0.02

49 °

Fallon, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high49°

Average low31°

Average precipitation0.02 in

Chance of precipitation23%

Record high69° (2001)

Record low-1° (2003)

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 Fallon, 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 Fallon, 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.