Monthly outlook for Hesper, MT: average high 57.3°, average low 41.3°. That is 1.5° below the climate normal for October. Precipitation is expected on 4 days (about 1.5 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 9 October (84.6°), the coolest 13 October (28.8°).
57.3°/41.3°
Average high / low
−1.5°
Below normal
4 / 4
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
58°
60.4°
-1.3°
19 October – 28 October
56°
58°
-1.1°
29 October – 7 November
at normal
51°
—
October records over 66 years
91°1 October 2011All-time high
-18.8°30 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Mossmain (4 mi).
Sat, 1067° / 46°0.25
67 °
Hesper, Saturday, 10 October
Rain. High 67°, low 46°.
Pressure29.59 inHg
Wind12.1 mph E
Humidity33%
Visibility6.2 mi
Dew point32°
Sun, 1145° / 35°0.72
45 °
Hesper, Sunday, 11 October
Snow. High 45°, low 35°.
Pressure29.94 inHg
Wind11.7 mph NE
Humidity94%
Visibility2.8 mi
Dew point41°
Mon, 1237° / 33°0.35
37 °
Hesper, Monday, 12 October
Snow. High 37°, low 33°.
Pressure30.18 inHg
Wind5.4 mph N
Humidity89%
Visibility6.2 mi
Dew point31°
Tue, 1345° / 29°0.01
45 °
Hesper, Tuesday, 13 October
Light rain. High 45°, low 29°.
Pressure30.09 inHg
Wind4.5 mph E
Humidity71%
Visibility—
Dew point32°
Wed, 1460° / 35°0
60 °
Hesper, Wednesday, 14 October
Clear. High 60°, low 35°.
Pressure29.88 inHg
Wind15 mph NW
Humidity35%
Visibility—
Dew point28°
Thu, 1550° / 40°0
50 °
Hesper, Thursday, 15 October
Partly cloudy. High 50°, low 40°.
Pressure30.33 inHg
Wind27.1 mph NW
Humidity45%
Visibility—
Dew point25°
Fri, 1655° / 33°0
55 °
Hesper, Friday, 16 October
Clear. High 55°, low 33°.
Pressure30.47 inHg
Wind16.1 mph NW
Humidity32%
Visibility—
Dew point18°
Sat, 1769° / 45°0
69 °
Hesper, Saturday, 17 October
Partly cloudy. High 69°, low 45°.
Pressure30.12 inHg
Wind16.6 mph SW
Humidity23%
Visibility—
Dew point21°
Sun, 1868° / 50°0
68 °
Hesper, Sunday, 18 October
Mostly clear. High 68°, low 50°.
Pressure30.00 inHg
Wind7.2 mph NE
Humidity25%
Visibility—
Dew point26°
Mon, 1971° / 46°0
71 °
Hesper, Monday, 19 October
Overcast. High 71°, low 46°.
Pressure29.91 inHg
Wind6.6 mph E
Humidity31%
Visibility—
Dew point28°
Tue, 2061° / 48°0
61 °
Hesper, Tuesday, 20 October
Mostly clear. High 61°, low 48°.
Pressure29.85 inHg
Wind11.9 mph NE
Humidity38%
Visibility—
Dew point32°
Wed, 2147° / 41°0.18
47 °
Hesper, Wednesday, 21 October
Light rain. High 47°, low 41°.
Pressure30.30 inHg
Wind10.9 mph NE
Humidity91%
Visibility—
Dew point39°
Thu, 2250° / 43°0
50 °
Hesper, Thursday, 22 October
Overcast. High 50°, low 43°.
Pressure30.21 inHg
Wind8 mph E
Humidity77%
Visibility—
Dew point41°
Fri, 2349° / 44°0.01
49 °
Hesper, Friday, 23 October
Light rain. High 49°, low 44°.
Pressure30.00 inHg
Wind3.4 mph N
Humidity85%
Visibility—
Dew point43°
Sat, 2459° / 42°0
59 °
Hesper, Saturday, 24 October
Overcast. High 59°, low 42°.
Pressure29.94 inHg
Wind5.7 mph SE
Humidity58%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2557° / 37°0.03
57 °
Hesper, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high57°
Average low37°
Average precipitation0.03 in
Chance of precipitation15%
Record high75° (2014)
Record low1° (2020)
Mon, 2656° / 37°0.05
56 °
Hesper, Monday, 26 October
Climate normal for this date — 60-year average.
Average high56°
Average low37°
Average precipitation0.05 in
Chance of precipitation23%
Record high74° (1999)
Record low1° (2020)
Tue, 2755° / 35°0.04
55 °
Hesper, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high55°
Average low35°
Average precipitation0.04 in
Chance of precipitation18%
Record high74° (2024)
Record low6° (2023)
Wed, 2855° / 34°0.06
55 °
Hesper, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high55°
Average low34°
Average precipitation0.06 in
Chance of precipitation27%
Record high73° (1990)
Record low5° (2023)
Thu, 2952° / 34°0.06
52 °
Hesper, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high52°
Average low34°
Average precipitation0.06 in
Chance of precipitation33%
Record high74° (1987)
Record low-2° (1991)
Fri, 3052° / 30°0.04
52 °
Hesper, Friday, 30 October
Climate normal for this date — 60-year average.
Average high52°
Average low30°
Average precipitation0.04 in
Chance of precipitation22%
Record high72° (1962)
Record low-19° (1991)
Sat, 3151° / 32°0.06
51 °
Hesper, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low32°
Average precipitation0.06 in
Chance of precipitation22%
Record high72° (1999)
Record low-3° (1996)
Sun, 0151° / 32°0.05
51 °
Hesper, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low32°
Average precipitation0.05 in
Chance of precipitation20%
Record high70° (1965)
Record low-1° (2003)
Mon, 0250° / 31°0.02
50 °
Hesper, Monday, 2 November
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.02 in
Chance of precipitation18%
Record high70° (1965)
Record low-16° (1991)
Tue, 0351° / 32°0.02
51 °
Hesper, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low32°
Average precipitation0.02 in
Chance of precipitation15%
Record high69° (1981)
Record low-4° (1991)
Wed, 0452° / 33°0.04
52 °
Hesper, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low33°
Average precipitation0.04 in
Chance of precipitation23%
Record high69° (1978)
Record low3° (1995)
Thu, 0551° / 33°0.05
51 °
Hesper, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.05 in
Chance of precipitation28%
Record high70° (2001)
Record low-9° (2003)
Fri, 0650° / 31°0.04
50 °
Hesper, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.04 in
Chance of precipitation22%
Record high72° (2010)
Record low2° (2003)
Sat, 0749° / 31°0.04
49 °
Hesper, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.04 in
Chance of precipitation25%
Record high73° (1999)
Record low2° (2017)
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 Hesper, 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 Hesper, 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.