As of 00:50 MDT

Weather in Blair, MT

45°Current weather

Blair, Thursday, 15 October, 00:50

Mostly clear. Feels like 39°. High 45°, low 35°.

Pressure30.15 inHg
Wind10.7 mph NW
Humidity75%
Visibility6.2 mi
Dew point37°

Monthly outlook for Blair, MT: average high 55.7°, average low 40.1°. That is 1.2° above the climate normal for October. Precipitation is expected on 2 days (about 0.5 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 17 October (72.3°), the coolest 16 October (28.2°).

55.7°/40.1°
Average high / low
+1.2°
Above normal
2 / 3
Wet days / normal
0.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
15 October – 24 October57.5°55.3°+1.2°
25 October – 3 November52.7°49°+2.1°
4 November – 13 Novemberat normal42.4°—

October records over 66 years

90.3°1 October 1992All-time high
-4.4°31 October 2023All-time low

Climate normals and records are computed from the nearest reference point — Culbertson (5 mi).

Fri, 1657° / 28°0Clear
57 °Clear

Blair, Friday, 16 October

Clear. High 57°, low 28°.

Pressure30.53 inHg
Wind12.4 mph S
Humidity44%
Visibility6.2 mi
Dew point23°
Sat, 1772° / 39°0Mostly clear
72 °Mostly clear

Blair, Saturday, 17 October

Mostly clear. High 72°, low 39°.

Pressure29.91 inHg
Wind9.4 mph SW
Humidity35%
Visibility6.2 mi
Dew point35°
Sun, 1858° / 44°0Overcast
58 °Overcast

Blair, Sunday, 18 October

Overcast. High 58°, low 44°.

Pressure30.24 inHg
Wind1 mph N
Humidity39%
Visibility6.2 mi
Dew point26°
Mon, 1965° / 42°0Mostly clear
65 °Mostly clear

Blair, Monday, 19 October

Mostly clear. High 65°, low 42°.

Pressure30.09 inHg
Wind12.7 mph SE
Humidity45%
Visibility—
Dew point36°
Tue, 2064° / 43°0Partly cloudy
64 °Partly cloudy

Blair, Tuesday, 20 October

Partly cloudy. High 64°, low 43°.

Pressure29.94 inHg
Wind9.6 mph SE
Humidity60%
Visibility—
Dew point42°
Wed, 2160° / 46°0Mostly clear
60 °Mostly clear

Blair, Wednesday, 21 October

Mostly clear. High 60°, low 46°.

Pressure29.83 inHg
Wind6.5 mph NW
Humidity43%
Visibility—
Dew point32°
Thu, 2257° / 47°0.34Rain
57 °Rain

Blair, Thursday, 22 October

Rain. High 57°, low 47°.

Pressure29.62 inHg
Wind15.1 mph NW
Humidity47%
Visibility—
Dew point36°
Fri, 2349° / 43°0Overcast
49 °Overcast

Blair, Friday, 23 October

Overcast. High 49°, low 43°.

Pressure29.85 inHg
Wind18.6 mph NW
Humidity73%
Visibility—
Dew point37°
Sat, 2447° / 35°0Partly cloudy
47 °Partly cloudy

Blair, Saturday, 24 October

Partly cloudy. High 47°, low 35°.

Pressure30.39 inHg
Wind15.7 mph W
Humidity48%
Visibility—
Dew point24°
Sun, 2553° / 38°0.01Light rain
53 °Light rain

Blair, Sunday, 25 October

Light rain. High 53°, low 38°.

Pressure30.12 inHg
Wind18.2 mph W
Humidity86%
Visibility—
Dew point37°
Mon, 2647° / 43°0.02Light rain
47 °Light rain

Blair, Monday, 26 October

Light rain. High 47°, low 43°.

Pressure30.15 inHg
Wind15.6 mph NW
Humidity55%
Visibility—
Dew point31°
Tue, 2754° / 38°0Overcast
54 °Overcast

Blair, Tuesday, 27 October

Overcast. High 54°, low 38°.

Pressure29.83 inHg
Wind14.7 mph SW
Humidity48%
Visibility—
Dew point30°
Wed, 2854° / 42°0.1Light rain
54 °Light rain

Blair, Wednesday, 28 October

Light rain. High 54°, low 42°.

Pressure29.80 inHg
Wind20 mph NW
Humidity46%
Visibility—
Dew point30°
Thu, 2954° / 35°0Mostly clear
54 °Mostly clear

Blair, Thursday, 29 October

Mostly clear. High 54°, low 35°.

Pressure29.85 inHg
Wind13.6 mph S
Humidity36%
Visibility—
Dew point22°
Fri, 3053° / 44°0Overcast
53 °Overcast

Blair, Friday, 30 October

Overcast. High 53°, low 44°.

Pressure29.41 inHg
Wind13.8 mph W
Humidity39%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3148° / 31°0.02Climate normal
48 °Climate normal

Blair, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high48°
Average low31°
Average precipitation0.02 in
Chance of precipitation17%
Record high76° (1990)
Record low-4° (2023)
Sun, 0147° / 32°0.04Climate normal
47 °Climate normal

Blair, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high47°
Average low32°
Average precipitation0.04 in
Chance of precipitation15%
Record high69° (1965)
Record low2° (1984)
Mon, 0246° / 30°0.02Climate normal
46 °Climate normal

Blair, Monday, 2 November

Climate normal for this date — 60-year average.

Average high46°
Average low30°
Average precipitation0.02 in
Chance of precipitation13%
Record high71° (1965)
Record low3° (1991)
Tue, 0346° / 30°0.02Climate normal
46 °Climate normal

Blair, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high46°
Average low30°
Average precipitation0.02 in
Chance of precipitation15%
Record high66° (1981)
Record low-4° (1991)
Wed, 0447° / 30°0.03Climate normal
47 °Climate normal

Blair, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high47°
Average low30°
Average precipitation0.03 in
Chance of precipitation23%
Record high69° (1975)
Record low8° (1991)
Thu, 0546° / 29°0.02Climate normal
46 °Climate normal

Blair, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high46°
Average low29°
Average precipitation0.02 in
Chance of precipitation13%
Record high71° (2020)
Record low-1° (2003)
Fri, 0645° / 28°0.02Climate normal
45 °Climate normal

Blair, Friday, 6 November

Climate normal for this date — 60-year average.

Average high45°
Average low28°
Average precipitation0.02 in
Chance of precipitation17%
Record high66° (2009)
Record low0° (1991)
Sat, 0745° / 28°0.02Climate normal
45 °Climate normal

Blair, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high45°
Average low28°
Average precipitation0.02 in
Chance of precipitation10%
Record high73° (1999)
Record low-3° (1991)
Sun, 0843° / 27°0.03Climate normal
43 °Climate normal

Blair, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high43°
Average low27°
Average precipitation0.03 in
Chance of precipitation20%
Record high70° (1999)
Record low-2° (2000)
Mon, 0940° / 25°0.04Climate normal
40 °Climate normal

Blair, Monday, 9 November

Climate normal for this date — 60-year average.

Average high40°
Average low25°
Average precipitation0.04 in
Chance of precipitation18%
Record high66° (2016)
Record low3° (2000)
Tue, 1039° / 25°0.04Climate normal
39 °Climate normal

Blair, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high39°
Average low25°
Average precipitation0.04 in
Chance of precipitation18%
Record high64° (1999)
Record low-3° (1986)
Wed, 1139° / 23°0.02Climate normal
39 °Climate normal

Blair, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high39°
Average low23°
Average precipitation0.02 in
Chance of precipitation17%
Record high61° (2016)
Record low-5° (2022)
Thu, 1240° / 24°0.03Climate normal
40 °Climate normal

Blair, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high40°
Average low24°
Average precipitation0.03 in
Chance of precipitation17%
Record high74° (1999)
Record low-4° (1986)
Fri, 1341° / 25°0.02Climate normal
41 °Climate normal

Blair, Friday, 13 November

Climate normal for this date — 60-year average.

Average high41°
Average low25°
Average precipitation0.02 in
Chance of precipitation18%
Record high64° (1999)
Record low-10° (1986)

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 Blair, 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 Blair, 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.