Monthly outlook for Agency, MT: average high 56.7°, average low 38.3°. That is 1.3° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 6 days and 1.3 inches. The warmest day looks like 17 October (74.8°), the coolest 25 October (28.9°).
56.7°/38.3°
Average high / low
+1.3°
Above normal
2 / 6
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
59.6°
56.2°
+1.9°
24 October – 2 November
52°
49.6°
+1.3°
3 November – 12 November
at normal
44.5°
—
October records over 66 years
85.6°1 October 1992All-time high
-2.2°25 October 2020All-time low
Climate normals and records are computed from the nearest reference point — St. Ignatius (9 mi).
Thu, 1560° / 38°0
60 °
Agency, Thursday, 15 October
Clear. High 60°, low 38°.
Pressure30.65 inHg
Wind2.6 mph N
Humidity65%
Visibility6.2 mi
Dew point40°
Fri, 1665° / 39°0
65 °
Agency, Friday, 16 October
Overcast. High 65°, low 39°.
Pressure30.45 inHg
Wind3.2 mph N
Humidity61%
Visibility6.2 mi
Dew point40°
Sat, 1775° / 42°0
75 °
Agency, Saturday, 17 October
Overcast. High 75°, low 42°.
Pressure30.03 inHg
Wind2.3 mph SE
Humidity40%
Visibility6.2 mi
Dew point41°
Sun, 1862° / 45°0
62 °
Agency, Sunday, 18 October
Clear. High 62°, low 45°.
Pressure30.15 inHg
Wind2.4 mph N
Humidity65%
Visibility6.2 mi
Dew point43°
Mon, 1966° / 44°0
66 °
Agency, Monday, 19 October
Overcast. High 66°, low 44°.
Pressure29.91 inHg
Wind3 mph N
Humidity65%
Visibility—
Dew point45°
Tue, 2060° / 47°0
60 °
Agency, Tuesday, 20 October
Overcast. High 60°, low 47°.
Pressure29.97 inHg
Wind3.8 mph NE
Humidity59%
Visibility—
Dew point41°
Wed, 2160° / 39°0
60 °
Agency, Wednesday, 21 October
Partly cloudy. High 60°, low 39°.
Pressure29.85 inHg
Wind5.3 mph SW
Humidity47%
Visibility—
Dew point31°
Thu, 2250° / 40°0.01
50 °
Agency, Thursday, 22 October
Light rain. High 50°, low 40°.
Pressure29.88 inHg
Wind9.4 mph W
Humidity58%
Visibility—
Dew point34°
Fri, 2341° / 34°0.12
41 °
Agency, Friday, 23 October
Snow. High 41°, low 34°.
Pressure30.27 inHg
Wind5.9 mph SW
Humidity78%
Visibility—
Dew point34°
Sat, 2445° / 35°0.06
45 °
Agency, Saturday, 24 October
Light snow. High 45°, low 35°.
Pressure30.62 inHg
Wind5.9 mph SW
Humidity73%
Visibility—
Dew point32°
Sun, 2548° / 29°0
48 °
Agency, Sunday, 25 October
Overcast. High 48°, low 29°.
Pressure30.56 inHg
Wind6.7 mph SW
Humidity53%
Visibility—
Dew point25°
Mon, 2648° / 33°0
48 °
Agency, Monday, 26 October
Overcast. High 48°, low 33°.
Pressure30.42 inHg
Wind4.1 mph NE
Humidity52%
Visibility—
Dew point26°
Tue, 2756° / 34°0
56 °
Agency, Tuesday, 27 October
Partly cloudy. High 56°, low 34°.
Pressure30.09 inHg
Wind6.6 mph S
Humidity54%
Visibility—
Dew point31°
Wed, 2853° / 40°0
53 °
Agency, Wednesday, 28 October
Mostly clear. High 53°, low 40°.
Pressure30.06 inHg
Wind6 mph S
Humidity62%
Visibility—
Dew point36°
Thu, 2960° / 38°0
60 °
Agency, Thursday, 29 October
Overcast. High 60°, low 38°.
Pressure29.77 inHg
Wind8.1 mph S
Humidity42%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3048° / 32°0.07
48 °
Agency, Friday, 30 October
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.07 in
Chance of precipitation35%
Record high67° (2008)
Record low5° (1972)
Sat, 3147° / 32°0.11
47 °
Agency, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.11 in
Chance of precipitation47%
Record high65° (1988)
Record low6° (1996)
Sun, 0147° / 32°0.11
47 °
Agency, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.11 in
Chance of precipitation43%
Record high66° (1988)
Record low8° (1984)
Mon, 0247° / 32°0.11
47 °
Agency, Monday, 2 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.11 in
Chance of precipitation40%
Record high64° (1981)
Record low5° (1991)
Tue, 0347° / 31°0.06
47 °
Agency, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.06 in
Chance of precipitation30%
Record high64° (1981)
Record low0° (1973)
Wed, 0447° / 32°0.11
47 °
Agency, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.11 in
Chance of precipitation58%
Record high61° (1980)
Record low-3° (1973)
Thu, 0546° / 32°0.11
46 °
Agency, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.11 in
Chance of precipitation53%
Record high64° (1980)
Record low2° (2003)
Fri, 0646° / 31°0.13
46 °
Agency, Friday, 6 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.13 in
Chance of precipitation58%
Record high63° (2010)
Record low2° (2003)
Sat, 0744° / 30°0.13
44 °
Agency, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.13 in
Chance of precipitation47%
Record high58° (1978)
Record low8° (2000)
Sun, 0844° / 30°0.09
44 °
Agency, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.09 in
Chance of precipitation50%
Record high60° (2016)
Record low9° (2000)
Mon, 0944° / 30°0.1
44 °
Agency, Monday, 9 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.1 in
Chance of precipitation48%
Record high64° (2016)
Record low11° (1986)
Tue, 1043° / 28°0.07
43 °
Agency, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high43°
Average low28°
Average precipitation0.07 in
Chance of precipitation40%
Record high62° (2016)
Record low-10° (1986)
Wed, 1142° / 27°0.09
42 °
Agency, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high42°
Average low27°
Average precipitation0.09 in
Chance of precipitation37%
Record high61° (2016)
Record low-2° (2000)
Thu, 1242° / 28°0.11
42 °
Agency, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high42°
Average low28°
Average precipitation0.11 in
Chance of precipitation48%
Record high66° (1999)
Record low0° (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 Agency, 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 Agency, 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.