Monthly outlook for Agency, MT: average high 50.1°, average low 35.2°. That is 1° below the climate normal for October. Precipitation is expected on 7 days (about 1.6 inches), against a normal of 6 days and 1.4 inches. The warmest day looks like 19 October (66.3°), the coolest 30 October (18.9°).
50.1°/35.2°
Average high / low
−1°
Below normal
7 / 6
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
55.6°
54.2°
+0.8°
28 October – 6 November
40.9°
47.4°
-3.6°
7 November – 16 November
at normal
42.8°
—
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).
Mon, 1966° / 33°0
66 °
Agency, Monday, 19 October
Partly cloudy. High 66°, low 33°.
Pressure29.91 inHg
Wind3.2 mph N
Humidity59%
Visibility6.2 mi
Dew point42°
Tue, 2065° / 43°0
65 °
Agency, Tuesday, 20 October
Partly cloudy. High 65°, low 43°.
Pressure30.06 inHg
Wind2.1 mph N
Humidity61%
Visibility6.2 mi
Dew point42°
Wed, 2165° / 44°0
65 °
Agency, Wednesday, 21 October
Overcast. High 65°, low 44°.
Pressure30.03 inHg
Wind3 mph N
Humidity65%
Visibility6.2 mi
Dew point45°
Thu, 2260° / 46°0.17
60 °
Agency, Thursday, 22 October
Light rain. High 60°, low 46°.
Pressure29.77 inHg
Wind3.1 mph N
Humidity64%
Visibility6.2 mi
Dew point45°
Fri, 2354° / 43°0.14
54 °
Agency, Friday, 23 October
Light rain. High 54°, low 43°.
Pressure29.97 inHg
Wind9.2 mph W
Humidity60%
Visibility—
Dew point38°
Sat, 2451° / 35°0
51 °
Agency, Saturday, 24 October
Overcast. High 51°, low 35°.
Pressure30.36 inHg
Wind4.1 mph S
Humidity60%
Visibility—
Dew point32°
Sun, 2551° / 40°0.07
51 °
Agency, Sunday, 25 October
Light rain. High 51°, low 40°.
Pressure30.06 inHg
Wind5.9 mph N
Humidity33%
Visibility—
Dew point21°
Mon, 2642° / 40°0.27
42 °
Agency, Monday, 26 October
Snow. High 42°, low 40°.
Pressure30.06 inHg
Wind4.4 mph NW
Humidity98%
Visibility—
Dew point39°
Tue, 2741° / 38°0.54
41 °
Agency, Tuesday, 27 October
Snow. High 41°, low 38°.
Pressure29.91 inHg
Wind3.7 mph N
Humidity100%
Visibility—
Dew point38°
Wed, 2847° / 32°0.04
47 °
Agency, Wednesday, 28 October
Light snow. High 47°, low 32°.
Pressure29.94 inHg
Wind6 mph SW
Humidity80%
Visibility—
Dew point35°
Thu, 2937° / 27°0.12
37 °
Agency, Thursday, 29 October
Snow. High 37°, low 27°.
Pressure29.91 inHg
Wind10.8 mph N
Humidity96%
Visibility—
Dew point35°
Fri, 3035° / 19°0
35 °
Agency, Friday, 30 October
Light snow. High 35°, low 19°.
Pressure30.36 inHg
Wind3.6 mph SW
Humidity80%
Visibility—
Dew point24°
Sat, 3140° / 23°0
40 °
Agency, Saturday, 31 October
Mostly clear. High 40°, low 23°.
Pressure30.24 inHg
Wind4.4 mph SW
Humidity71%
Visibility—
Dew point24°
Sun, 0142° / 27°0.03
42 °
Agency, Sunday, 1 November
Light snow. High 42°, low 27°.
Pressure30.03 inHg
Wind4.6 mph SW
Humidity71%
Visibility—
Dew point26°
Mon, 0245° / 37°0.24
45 °
Agency, Monday, 2 November
Snow. High 45°, low 37°.
Pressure29.85 inHg
Wind8.4 mph S
Humidity97%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Fri, 1342° / 29°0.1
42 °
Agency, Friday, 13 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.1 in
Chance of precipitation52%
Record high65° (2025)
Record low4° (2000)
Sat, 1442° / 28°0.09
42 °
Agency, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high42°
Average low28°
Average precipitation0.09 in
Chance of precipitation40%
Record high62° (1999)
Record low2° (2000)
Sun, 1543° / 27°0.04
43 °
Agency, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high43°
Average low27°
Average precipitation0.04 in
Chance of precipitation30%
Record high62° (2021)
Record low5° (2014)
Mon, 1642° / 28°0.1
42 °
Agency, Monday, 16 November
Climate normal for this date — 60-year average.
Average high42°
Average low28°
Average precipitation0.1 in
Chance of precipitation52%
Record high57° (2001)
Record low6° (1996)
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.