Monthly outlook for Hysham, MT: average high 57.4°, average low 40.9°. That is 0.3° below the climate normal for October. Precipitation is expected on 1 day (about 0.6 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 17 October (74.7°), the coolest 16 October (32°).
57.4°/40.9°
Average high / low
−0.3°
Below normal
1 / 3
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
63.8°
59.8°
+2.2°
25 October – 3 November
46.8°
53.7°
-3.9°
4 November – 13 November
at normal
48.4°
—
October records over 66 years
93°1 October 2011All-time high
-20°30 October 1991All-time low
Fri, 1665° / 32°0
65 °
Hysham, Friday, 16 October
Clear. High 65°, low 32°.
Pressure30.50 inHg
Wind5.1 mph SW
Humidity42%
Visibility6.2 mi
Dew point27°
Sat, 1775° / 46°0
75 °
Hysham, Saturday, 17 October
Overcast. High 75°, low 46°.
Pressure29.97 inHg
Wind11.7 mph SW
Humidity34%
Visibility6.2 mi
Dew point37°
Sun, 1864° / 43°0
64 °
Hysham, Sunday, 18 October
Partly cloudy. High 64°, low 43°.
Pressure30.12 inHg
Wind4.5 mph E
Humidity46%
Visibility6.2 mi
Dew point38°
Mon, 1965° / 40°0
65 °
Hysham, Monday, 19 October
Clear. High 65°, low 40°.
Pressure29.97 inHg
Wind4.8 mph E
Humidity55%
Visibility—
Dew point40°
Tue, 2072° / 40°0
72 °
Hysham, Tuesday, 20 October
Mostly clear. High 72°, low 40°.
Pressure29.91 inHg
Wind7.2 mph SW
Humidity46%
Visibility—
Dew point40°
Wed, 2167° / 48°0
67 °
Hysham, Wednesday, 21 October
Clear. High 67°, low 48°.
Pressure29.77 inHg
Wind6.1 mph NE
Humidity39%
Visibility—
Dew point35°
Thu, 2269° / 54°0
69 °
Hysham, Thursday, 22 October
Overcast. High 69°, low 54°.
Pressure29.68 inHg
Wind20.1 mph W
Humidity32%
Visibility—
Dew point35°
Fri, 2358° / 49°0
58 °
Hysham, Friday, 23 October
Partly cloudy. High 58°, low 49°.
Pressure29.97 inHg
Wind11.8 mph NW
Humidity43%
Visibility—
Dew point33°
Sat, 2451° / 40°0
51 °
Hysham, Saturday, 24 October
Clear. High 51°, low 40°.
Pressure30.24 inHg
Wind15.4 mph NW
Humidity33%
Visibility—
Dew point20°
Sun, 2548° / 38°0.03
48 °
Hysham, Sunday, 25 October
Snow. High 48°, low 38°.
Pressure30.21 inHg
Wind21.9 mph NE
Humidity55%
Visibility—
Dew point29°
Mon, 2640° / 35°0
40 °
Hysham, Monday, 26 October
Overcast. High 40°, low 35°.
Pressure30.18 inHg
Wind10.6 mph NE
Humidity86%
Visibility—
Dew point34°
Tue, 2747° / 39°0.54
47 °
Hysham, Tuesday, 27 October
Rain. High 47°, low 39°.
Pressure29.83 inHg
Wind15 mph E
Humidity91%
Visibility—
Dew point40°
Wed, 2847° / 37°0
47 °
Hysham, Wednesday, 28 October
Overcast. High 47°, low 37°.
Pressure29.65 inHg
Wind19.2 mph NW
Humidity53%
Visibility—
Dew point29°
Thu, 2951° / 40°0
51 °
Hysham, Thursday, 29 October
Partly cloudy. High 51°, low 40°.
Pressure29.80 inHg
Wind14.8 mph NW
Humidity36%
Visibility—
Dew point22°
Fri, 3047° / 35°0
47 °
Hysham, Friday, 30 October
Overcast. High 47°, low 35°.
Pressure30.12 inHg
Wind21.7 mph NW
Humidity35%
Visibility—
Dew point17°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3152° / 33°0.04
52 °
Hysham, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high52°
Average low33°
Average precipitation0.04 in
Chance of precipitation15%
Record high77° (1990)
Record low-1° (1991)
Sun, 0151° / 33°0.02
51 °
Hysham, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.02 in
Chance of precipitation15%
Record high73° (1965)
Record low2° (1991)
Mon, 0251° / 32°0.02
51 °
Hysham, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low32°
Average precipitation0.02 in
Chance of precipitation13%
Record high75° (1965)
Record low-7° (1991)
Tue, 0351° / 33°0.03
51 °
Hysham, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.03 in
Chance of precipitation15%
Record high70° (1981)
Record low-17° (1991)
Wed, 0453° / 33°0.03
53 °
Hysham, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low33°
Average precipitation0.03 in
Chance of precipitation15%
Record high71° (1983)
Record low10° (1995)
Thu, 0552° / 33°0.03
52 °
Hysham, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low33°
Average precipitation0.03 in
Chance of precipitation23%
Record high73° (2020)
Record low4° (1961)
Fri, 0650° / 31°0.03
50 °
Hysham, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.03 in
Chance of precipitation17%
Record high73° (2010)
Record low10° (1991)
Sat, 0749° / 31°0.02
49 °
Hysham, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.02 in
Chance of precipitation13%
Record high73° (1999)
Record low-2° (1991)
Sun, 0849° / 30°0.04
49 °
Hysham, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low30°
Average precipitation0.04 in
Chance of precipitation22%
Record high77° (1999)
Record low3° (1966)
Mon, 0947° / 29°0.07
47 °
Hysham, Monday, 9 November
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.07 in
Chance of precipitation22%
Record high69° (2016)
Record low-1° (1966)
Tue, 1046° / 27°0.05
46 °
Hysham, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high46°
Average low27°
Average precipitation0.05 in
Chance of precipitation18%
Record high71° (2007)
Record low-19° (1986)
Wed, 1145° / 26°0.02
45 °
Hysham, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high45°
Average low26°
Average precipitation0.02 in
Chance of precipitation23%
Record high71° (1990)
Record low-7° (2019)
Thu, 1247° / 27°0.02
47 °
Hysham, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high47°
Average low27°
Average precipitation0.02 in
Chance of precipitation15%
Record high76° (1999)
Record low-16° (1986)
Fri, 1347° / 29°0.03
47 °
Hysham, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.03 in
Chance of precipitation17%
Record high71° (1990)
Record low-21° (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 Hysham, 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 Hysham, 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.