Monthly outlook for Hesper, MT: average high 58°, average low 40.5°. That is 0.3° below the climate normal for October. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 19 October (71.9°), the coolest 14 October (34.4°).
58°/40.5°
Average high / low
−0.3°
Below normal
1 / 3
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
60.3°
59.8°
+0.2°
23 October – 1 November
54.3°
54.4°
-0.1°
2 November – 11 November
at normal
49°
—
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).
Wed, 1461° / 34°0
61 °
Hesper, Wednesday, 14 October
Clear. High 61°, low 34°.
Pressure30.12 inHg
Wind7.6 mph SW
Humidity48%
Visibility6.2 mi
Dew point34°
Thu, 1556° / 41°0
56 °
Hesper, Thursday, 15 October
Clear. High 56°, low 41°.
Pressure30.65 inHg
Wind1.9 mph NE
Humidity45%
Visibility6.2 mi
Dew point29°
Fri, 1666° / 36°0
66 °
Hesper, Friday, 16 October
Clear. High 66°, low 36°.
Pressure30.42 inHg
Wind11.9 mph SW
Humidity46%
Visibility6.2 mi
Dew point38°
Sat, 1771° / 51°0
71 °
Hesper, Saturday, 17 October
Overcast. High 71°, low 51°.
Pressure29.97 inHg
Wind13.7 mph SW
Humidity31%
Visibility6.2 mi
Dew point35°
Sun, 1863° / 44°0
63 °
Hesper, Sunday, 18 October
Clear. High 63°, low 44°.
Pressure30.03 inHg
Wind4.8 mph W
Humidity45%
Visibility—
Dew point36°
Mon, 1972° / 43°0
72 °
Hesper, Monday, 19 October
Overcast. High 72°, low 43°.
Pressure29.68 inHg
Wind13.8 mph S
Humidity25%
Visibility—
Dew point27°
Tue, 2054° / 45°0.11
54 °
Hesper, Tuesday, 20 October
Light rain. High 54°, low 45°.
Pressure29.80 inHg
Wind15.2 mph NW
Humidity62%
Visibility—
Dew point38°
Wed, 2149° / 42°0.02
49 °
Hesper, Wednesday, 21 October
Light rain. High 49°, low 42°.
Pressure30.06 inHg
Wind7 mph W
Humidity57%
Visibility—
Dew point31°
Thu, 2257° / 38°0
57 °
Hesper, Thursday, 22 October
Light rain. High 57°, low 38°.
Pressure29.83 inHg
Wind19.6 mph W
Humidity46%
Visibility—
Dew point30°
Fri, 2348° / 41°0.02
48 °
Hesper, Friday, 23 October
Light rain. High 48°, low 41°.
Pressure30.21 inHg
Wind25.3 mph NW
Humidity49%
Visibility—
Dew point27°
Sat, 2452° / 35°0
52 °
Hesper, Saturday, 24 October
Partly cloudy. High 52°, low 35°.
Pressure30.30 inHg
Wind21.5 mph SW
Humidity32%
Visibility—
Dew point19°
Sun, 2554° / 41°0
54 °
Hesper, Sunday, 25 October
Clear. High 54°, low 41°.
Pressure30.47 inHg
Wind10.9 mph W
Humidity45%
Visibility—
Dew point29°
Mon, 2661° / 37°0
61 °
Hesper, Monday, 26 October
Clear. High 61°, low 37°.
Pressure30.03 inHg
Wind9.8 mph S
Humidity43%
Visibility—
Dew point28°
Tue, 2755° / 44°0.02
55 °
Hesper, Tuesday, 27 October
Light rain. High 55°, low 44°.
Pressure29.65 inHg
Wind19.4 mph NW
Humidity42%
Visibility—
Dew point31°
Wed, 2855° / 40°0
55 °
Hesper, Wednesday, 28 October
Partly cloudy. High 55°, low 40°.
Pressure30.06 inHg
Wind14.4 mph NW
Humidity45%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sun, 0848° / 31°0.04
48 °
Hesper, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.04 in
Chance of precipitation28%
Record high71° (1999)
Record low1° (1966)
Mon, 0946° / 28°0.06
46 °
Hesper, Monday, 9 November
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.06 in
Chance of precipitation22%
Record high69° (2016)
Record low-3° (1966)
Tue, 1046° / 28°0.05
46 °
Hesper, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.05 in
Chance of precipitation25%
Record high67° (2007)
Record low-19° (1986)
Wed, 1145° / 27°0.03
45 °
Hesper, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.03 in
Chance of precipitation20%
Record high68° (1999)
Record low-4° (1966)
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.