Monthly outlook for Grayling, MT: average high 49°, average low 28.8°. That is 0° above the climate normal for October. Precipitation is expected on 8 days (about 2.5 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 8 October (71.2°), the coolest 16 October (23.4°).
49°/28.8°
Average high / low
+0°
Above normal
8 / 4
Wet days / normal
2.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
50.6°
49.7°
+0.5°
18 October – 27 October
46.4°
46.1°
+0.2°
28 October – 6 November
at normal
39.5°
—
October records over 66 years
74.7°2 October 2010All-time high
-5.3°30 October 2019All-time low
Fri, 0969° / 26°0
69 °
Grayling, Friday, 9 October
Partly cloudy. High 69°, low 26°.
Pressure29.80 inHg
Wind7 mph S
Humidity38%
Visibility6.2 mi
Dew point30°
Sat, 1053° / 41°0.1
53 °
Grayling, Saturday, 10 October
Light rain. High 53°, low 41°.
Pressure29.65 inHg
Wind8.3 mph S
Humidity74%
Visibility6.2 mi
Dew point38°
Sun, 1142° / 32°1.06
42 °
Grayling, Sunday, 11 October
Snow. High 42°, low 32°.
Pressure29.71 inHg
Wind2.8 mph N
Humidity98%
Visibility1.5 mi
Dew point39°
Mon, 1243° / 29°0.48
43 °
Grayling, Monday, 12 October
Snow. High 43°, low 29°.
Pressure29.91 inHg
Wind5.8 mph N
Humidity85%
Visibility—
Dew point32°
Tue, 1351° / 30°0
51 °
Grayling, Tuesday, 13 October
Overcast. High 51°, low 30°.
Pressure29.85 inHg
Wind4.3 mph SE
Humidity65%
Visibility—
Dew point33°
Wed, 1442° / 29°0.06
42 °
Grayling, Wednesday, 14 October
Snow. High 42°, low 29°.
Pressure29.50 inHg
Wind14.1 mph S
Humidity78%
Visibility—
Dew point35°
Thu, 1536° / 28°0.06
36 °
Grayling, Thursday, 15 October
Light snow. High 36°, low 28°.
Pressure30.12 inHg
Wind5 mph NW
Humidity67%
Visibility—
Dew point23°
Fri, 1648° / 23°0
48 °
Grayling, Friday, 16 October
Clear. High 48°, low 23°.
Pressure30.33 inHg
Wind3.6 mph SW
Humidity47%
Visibility—
Dew point21°
Sat, 1751° / 25°0
51 °
Grayling, Saturday, 17 October
Clear. High 51°, low 25°.
Pressure30.21 inHg
Wind4.8 mph SW
Humidity47%
Visibility—
Dew point23°
Sun, 1853° / 27°0
53 °
Grayling, Sunday, 18 October
Mostly clear. High 53°, low 27°.
Pressure30.18 inHg
Wind5.4 mph S
Humidity42%
Visibility—
Dew point23°
Mon, 1953° / 31°0
53 °
Grayling, Monday, 19 October
Overcast. High 53°, low 31°.
Pressure30.15 inHg
Wind4.5 mph S
Humidity41%
Visibility—
Dew point24°
Tue, 2053° / 31°0
53 °
Grayling, Tuesday, 20 October
Mostly clear. High 53°, low 31°.
Pressure30.15 inHg
Wind7.7 mph S
Humidity36%
Visibility—
Dew point22°
Wed, 2143° / 31°0.33
43 °
Grayling, Wednesday, 21 October
Snow. High 43°, low 31°.
Pressure29.65 inHg
Wind11.6 mph SW
Humidity55%
Visibility—
Dew point27°
Thu, 2238° / 24°0.28
38 °
Grayling, Thursday, 22 October
Snow. High 38°, low 24°.
Pressure29.65 inHg
Wind8.2 mph SW
Humidity89%
Visibility—
Dew point29°
Fri, 2339° / 25°0.09
39 °
Grayling, Friday, 23 October
Snow. High 39°, low 25°.
Pressure29.80 inHg
Wind11.2 mph SW
Humidity85%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2444° / 28°0.08
44 °
Grayling, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.08 in
Chance of precipitation40%
Record high60° (2005)
Record low6° (2019)
Sun, 2545° / 27°0.07
45 °
Grayling, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.07 in
Chance of precipitation33%
Record high60° (2005)
Record low-3° (2020)
Mon, 2644° / 27°0.11
44 °
Grayling, Monday, 26 October
Climate normal for this date — 60-year average.
Average high44°
Average low27°
Average precipitation0.11 in
Chance of precipitation38%
Record high56° (1999)
Record low-5° (2020)
Tue, 2743° / 25°0.05
43 °
Grayling, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high43°
Average low25°
Average precipitation0.05 in
Chance of precipitation27%
Record high57° (1977)
Record low1° (2019)
Wed, 2842° / 25°0.08
42 °
Grayling, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high42°
Average low25°
Average precipitation0.08 in
Chance of precipitation38%
Record high59° (1962)
Record low-1° (2019)
Thu, 2941° / 25°0.07
41 °
Grayling, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high41°
Average low25°
Average precipitation0.07 in
Chance of precipitation33%
Record high61° (1962)
Record low-5° (1971)
Fri, 3040° / 23°0.07
40 °
Grayling, Friday, 30 October
Climate normal for this date — 60-year average.
Average high40°
Average low23°
Average precipitation0.07 in
Chance of precipitation35%
Record high61° (1962)
Record low-5° (2019)
Sat, 3140° / 23°0.08
40 °
Grayling, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high40°
Average low23°
Average precipitation0.08 in
Chance of precipitation47%
Record high55° (2008)
Record low-2° (2006)
Sun, 0139° / 23°0.06
39 °
Grayling, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high39°
Average low23°
Average precipitation0.06 in
Chance of precipitation32%
Record high57° (2014)
Record low-2° (2002)
Mon, 0238° / 22°0.07
38 °
Grayling, Monday, 2 November
Climate normal for this date — 60-year average.
Average high38°
Average low22°
Average precipitation0.07 in
Chance of precipitation42%
Record high58° (1981)
Record low-8° (1991)
Tue, 0339° / 22°0.07
39 °
Grayling, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high39°
Average low22°
Average precipitation0.07 in
Chance of precipitation28%
Record high56° (2020)
Record low-4° (1991)
Wed, 0439° / 22°0.08
39 °
Grayling, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high39°
Average low22°
Average precipitation0.08 in
Chance of precipitation38%
Record high55° (2020)
Record low-1° (1973)
Thu, 0539° / 23°0.09
39 °
Grayling, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high39°
Average low23°
Average precipitation0.09 in
Chance of precipitation48%
Record high53° (1987)
Record low-1° (2003)
Fri, 0638° / 22°0.09
38 °
Grayling, Friday, 6 November
Climate normal for this date — 60-year average.
Average high38°
Average low22°
Average precipitation0.09 in
Chance of precipitation45%
Record high57° (2020)
Record low-4° (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 Grayling, 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 Grayling, 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.