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As of 02:23 MDT

Weather in Blair, MT

37°Current weather

Blair, Monday, 12 October, 02:23

Rain. Feels like 30°. High 40°, low 35°.

Pressure29.97 inHg
Wind12 mph NE
Humidity95%
Visibility1.9 mi
Dew point36°

Monthly outlook for Blair, MT: average high 61.9°, average low 43.5°. That is 3.9° above the climate normal for October. Precipitation is expected on 1 day (about 0.5 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 20 October (78.1°), the coolest 16 October (31.4°).

61.9°/43.5°
Average high / low
+3.9°
Above normal
1 / 3
Wet days / normal
0.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
12 October – 21 October60.3°56.1°+2.3°
22 October – 31 October64.5°51.1°+7.5°
1 November – 10 Novemberat normal44.3°—

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).

Tue, 1351° / 35°0Overcast
51 °Overcast

Blair, Tuesday, 13 October

Overcast. High 51°, low 35°.

Pressure30.12 inHg
Wind6.4 mph W
Humidity58%
Visibility6.2 mi
Dew point32°
Wed, 1460° / 32°0Clear
60 °Clear

Blair, Wednesday, 14 October

Clear. High 60°, low 32°.

Pressure30.18 inHg
Wind5.8 mph S
Humidity54%
Visibility6.2 mi
Dew point37°
Thu, 1552° / 38°0Clear
52 °Clear

Blair, Thursday, 15 October

Clear. High 52°, low 38°.

Pressure30.56 inHg
Wind16.6 mph NW
Humidity52%
Visibility6.2 mi
Dew point29°
Fri, 1661° / 31°0Clear
61 °Clear

Blair, Friday, 16 October

Clear. High 61°, low 31°.

Pressure30.47 inHg
Wind13.4 mph S
Humidity43%
Visibility—
Dew point28°
Sat, 1770° / 40°0Partly cloudy
70 °Partly cloudy

Blair, Saturday, 17 October

Partly cloudy. High 70°, low 40°.

Pressure29.83 inHg
Wind11.7 mph W
Humidity37%
Visibility—
Dew point31°
Sun, 1869° / 52°0Overcast
69 °Overcast

Blair, Sunday, 18 October

Overcast. High 69°, low 52°.

Pressure29.80 inHg
Wind17.9 mph W
Humidity36%
Visibility—
Dew point37°
Mon, 1965° / 47°0Overcast
65 °Overcast

Blair, Monday, 19 October

Overcast. High 65°, low 47°.

Pressure30.00 inHg
Wind20.9 mph SE
Humidity40%
Visibility—
Dew point33°
Tue, 2078° / 58°0Clear
78 °Clear

Blair, Tuesday, 20 October

Clear. High 78°, low 58°.

Pressure29.65 inHg
Wind21.4 mph SE
Humidity26%
Visibility—
Dew point33°
Wed, 2157° / 50°0Overcast
57 °Overcast

Blair, Wednesday, 21 October

Overcast. High 57°, low 50°.

Pressure29.97 inHg
Wind13.5 mph NW
Humidity54%
Visibility—
Dew point38°
Thu, 2260° / 45°0Clear
60 °Clear

Blair, Thursday, 22 October

Clear. High 60°, low 45°.

Pressure30.06 inHg
Wind14.3 mph NW
Humidity36%
Visibility—
Dew point29°
Fri, 2366° / 43°0Clear
66 °Clear

Blair, Friday, 23 October

Clear. High 66°, low 43°.

Pressure30.24 inHg
Wind19.1 mph S
Humidity29%
Visibility—
Dew point24°
Sat, 2460° / 48°0Overcast
60 °Overcast

Blair, Saturday, 24 October

Overcast. High 60°, low 48°.

Pressure29.85 inHg
Wind18.7 mph N
Humidity36%
Visibility—
Dew point32°
Sun, 2563° / 42°0Clear
63 °Clear

Blair, Sunday, 25 October

Clear. High 63°, low 42°.

Pressure30.21 inHg
Wind8.2 mph SW
Humidity23%
Visibility—
Dew point18°
Mon, 2669° / 48°0Clear
69 °Clear

Blair, Monday, 26 October

Clear. High 69°, low 48°.

Pressure29.94 inHg
Wind11.5 mph SW
Humidity31%
Visibility—
Dew point31°
Tue, 2769° / 51°0Overcast
69 °Overcast

Blair, Tuesday, 27 October

Overcast. High 69°, low 51°.

Pressure29.74 inHg
Wind8.5 mph S
Humidity28%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
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)
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)

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.