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As of 07:10 MDT

Weather in Blair, MT

40°Current weather

Blair, Sunday, 11 October, 07:10

Rain. Feels like 34°. High 45°, low 40°.

Pressure30.00 inHg
Wind10.1 mph N
Humidity87%
Visibility4.3 mi
Dew point37°

Monthly outlook for Blair, MT: average high 59.1°, average low 42.6°. That is 2.1° above the climate normal for October. Precipitation is expected on 2 days (about 1.0 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 19 October (68.7°), the coolest 14 October (30.6°).

59.1°/42.6°
Average high / low
+2.1°
Above normal
2 / 3
Wet days / normal
1.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
11 October – 20 October57.6°56.4°+0.6°
21 October – 30 October61.6°51.9°+5.4°
31 October – 9 Novemberat normal45.1°—

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).

Mon, 1241° / 37°0.46Rain
41 °Rain

Blair, Monday, 12 October

Rain. High 41°, low 37°.

Pressure30.06 inHg
Wind8.1 mph N
Humidity89%
Visibility6.2 mi
Dew point35°
Tue, 1349° / 35°0Overcast
49 °Overcast

Blair, Tuesday, 13 October

Overcast. High 49°, low 35°.

Pressure30.15 inHg
Wind7.1 mph W
Humidity65%
Visibility6.2 mi
Dew point31°
Wed, 1456° / 31°0Clear
56 °Clear

Blair, Wednesday, 14 October

Clear. High 56°, low 31°.

Pressure30.24 inHg
Wind4.5 mph SW
Humidity59%
Visibility6.2 mi
Dew point35°
Thu, 1553° / 38°0Clear
53 °Clear

Blair, Thursday, 15 October

Clear. High 53°, low 38°.

Pressure30.50 inHg
Wind14.7 mph NW
Humidity50%
Visibility—
Dew point30°
Fri, 1665° / 34°0Clear
65 °Clear

Blair, Friday, 16 October

Clear. High 65°, low 34°.

Pressure30.42 inHg
Wind13.3 mph S
Humidity40%
Visibility—
Dew point29°
Sat, 1768° / 42°0Clear
68 °Clear

Blair, Saturday, 17 October

Clear. High 68°, low 42°.

Pressure29.91 inHg
Wind10.8 mph SW
Humidity33%
Visibility—
Dew point29°
Sun, 1865° / 54°0Overcast
65 °Overcast

Blair, Sunday, 18 October

Overcast. High 65°, low 54°.

Pressure29.97 inHg
Wind16.9 mph W
Humidity28%
Visibility—
Dew point27°
Mon, 1969° / 49°0Overcast
69 °Overcast

Blair, Monday, 19 October

Overcast. High 69°, low 49°.

Pressure29.91 inHg
Wind17.3 mph SE
Humidity27%
Visibility—
Dew point26°
Tue, 2065° / 52°0Overcast
65 °Overcast

Blair, Tuesday, 20 October

Overcast. High 65°, low 52°.

Pressure29.80 inHg
Wind11.7 mph NW
Humidity40%
Visibility—
Dew point37°
Wed, 2161° / 46°0Overcast
61 °Overcast

Blair, Wednesday, 21 October

Overcast. High 61°, low 46°.

Pressure29.94 inHg
Wind17.7 mph W
Humidity31%
Visibility—
Dew point28°
Thu, 2265° / 48°0Overcast
65 °Overcast

Blair, Thursday, 22 October

Overcast. High 65°, low 48°.

Pressure30.06 inHg
Wind10.8 mph SW
Humidity31%
Visibility—
Dew point28°
Fri, 2367° / 45°0Overcast
67 °Overcast

Blair, Friday, 23 October

Overcast. High 67°, low 45°.

Pressure30.06 inHg
Wind11.7 mph S
Humidity28%
Visibility—
Dew point26°
Sat, 2461° / 48°0Partly cloudy
61 °Partly cloudy

Blair, Saturday, 24 October

Partly cloudy. High 61°, low 48°.

Pressure30.06 inHg
Wind11.3 mph NW
Humidity34%
Visibility—
Dew point28°
Sun, 2556° / 42°0Mostly clear
56 °Mostly clear

Blair, Sunday, 25 October

Mostly clear. High 56°, low 42°.

Pressure30.33 inHg
Wind12.3 mph NW
Humidity33%
Visibility—
Dew point23°
Mon, 2659° / 40°0Overcast
59 °Overcast

Blair, Monday, 26 October

Overcast. High 59°, low 40°.

Pressure29.91 inHg
Wind10.9 mph S
Humidity31%
Visibility—
Dew point24°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2751° / 33°0.04Climate normal
51 °Climate normal

Blair, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high51°
Average low33°
Average precipitation0.04 in
Chance of precipitation20%
Record high73° (1983)
Record low7° (2023)
Wed, 2850° / 33°0.03Climate normal
50 °Climate normal

Blair, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high50°
Average low33°
Average precipitation0.03 in
Chance of precipitation15%
Record high74° (1990)
Record low11° (2023)
Thu, 2948° / 32°0.05Climate normal
48 °Climate normal

Blair, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high48°
Average low32°
Average precipitation0.05 in
Chance of precipitation22%
Record high72° (1968)
Record low10° (1991)
Fri, 3048° / 31°0.03Climate normal
48 °Climate normal

Blair, Friday, 30 October

Climate normal for this date — 60-year average.

Average high48°
Average low31°
Average precipitation0.03 in
Chance of precipitation15%
Record high70° (1983)
Record low-2° (1991)
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)

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.