Monthly outlook for Hammond, IN: average high 63°, average low 50°. That is 1.4° above the climate normal for October. Precipitation is expected on 4 days (about 0.7 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 12 October (81.8°), the coolest 17 October (35.9°).
63°/50°
Average high / low
+1.4°
Above normal
4 / 5
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
65.3°
61.6°
+2.1°
20 October – 29 October
59.2°
57.7°
+0.8°
30 October – 8 November
at normal
53.8°
—
October records over 66 years
88.5°3 October 2025All-time high
26.2°26 October 1962All-time low
Climate normals and records are computed from the nearest reference point — Calumet Park (9 mi).
Sun, 1174° / 59°0
74 °
Hammond, Sunday, 11 October
Clear. High 74°, low 59°.
Pressure30.00 inHg
Wind0.8 mph E
Humidity68%
Visibility6.2 mi
Dew point57°
Mon, 1282° / 62°0
82 °
Hammond, Monday, 12 October
Overcast. High 82°, low 62°.
Pressure29.85 inHg
Wind7.7 mph SW
Humidity61%
Visibility6.2 mi
Dew point62°
Tue, 1381° / 62°0
81 °
Hammond, Tuesday, 13 October
Partly cloudy. High 81°, low 62°.
Pressure29.80 inHg
Wind9.8 mph W
Humidity63%
Visibility6.2 mi
Dew point66°
Wed, 1461° / 57°0.04
61 °
Hammond, Wednesday, 14 October
Light rain. High 61°, low 57°.
Pressure30.12 inHg
Wind7.4 mph NE
Humidity81%
Visibility6.2 mi
Dew point55°
Thu, 1559° / 55°0
59 °
Hammond, Thursday, 15 October
Overcast. High 59°, low 55°.
Pressure30.33 inHg
Wind10.7 mph NE
Humidity73%
Visibility—
Dew point50°
Fri, 1666° / 44°0.02
66 °
Hammond, Friday, 16 October
Light rain. High 66°, low 44°.
Pressure29.77 inHg
Wind22.9 mph W
Humidity41%
Visibility—
Dew point32°
Sat, 1745° / 36°0
45 °
Hammond, Saturday, 17 October
Overcast. High 45°, low 36°.
Pressure30.21 inHg
Wind17.7 mph W
Humidity50%
Visibility—
Dew point25°
Sun, 1849° / 38°0.13
49 °
Hammond, Sunday, 18 October
Snow. High 49°, low 38°.
Pressure30.50 inHg
Wind13.4 mph NW
Humidity50%
Visibility—
Dew point28°
Mon, 1957° / 41°0
57 °
Hammond, Monday, 19 October
Overcast. High 57°, low 41°.
Pressure30.39 inHg
Wind12.4 mph S
Humidity34%
Visibility—
Dew point24°
Tue, 2062° / 45°0
62 °
Hammond, Tuesday, 20 October
Overcast. High 62°, low 45°.
Pressure30.30 inHg
Wind10.8 mph S
Humidity28%
Visibility—
Dew point25°
Wed, 2160° / 52°0.1
60 °
Hammond, Wednesday, 21 October
Light rain. High 60°, low 52°.
Pressure30.00 inHg
Wind15.1 mph S
Humidity47%
Visibility—
Dew point39°
Thu, 2265° / 48°0
65 °
Hammond, Thursday, 22 October
Clear. High 65°, low 48°.
Pressure30.09 inHg
Wind12.3 mph SW
Humidity44%
Visibility—
Dew point37°
Fri, 2358° / 50°0
58 °
Hammond, Friday, 23 October
Clear. High 58°, low 50°.
Pressure30.15 inHg
Wind10.1 mph NW
Humidity31%
Visibility—
Dew point26°
Sat, 2455° / 47°0
55 °
Hammond, Saturday, 24 October
Overcast. High 55°, low 47°.
Pressure30.21 inHg
Wind6 mph E
Humidity37%
Visibility—
Dew point28°
Sun, 2555° / 47°0.39
55 °
Hammond, Sunday, 25 October
Rain. High 55°, low 47°.
Pressure29.71 inHg
Wind13.6 mph N
Humidity90%
Visibility—
Dew point51°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2656° / 45°0.11
56 °
Hammond, Monday, 26 October
Climate normal for this date — 60-year average.
Average high56°
Average low45°
Average precipitation0.11 in
Chance of precipitation32%
Record high79° (1963)
Record low26° (1962)
Tue, 2756° / 44°0.09
56 °
Hammond, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high56°
Average low44°
Average precipitation0.09 in
Chance of precipitation37%
Record high73° (2014)
Record low31° (1962)
Wed, 2856° / 44°0.06
56 °
Hammond, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high56°
Average low44°
Average precipitation0.06 in
Chance of precipitation22%
Record high73° (1999)
Record low29° (1976)
Thu, 2956° / 43°0.06
56 °
Hammond, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high56°
Average low43°
Average precipitation0.06 in
Chance of precipitation20%
Record high79° (2024)
Record low30° (1980)
Fri, 3057° / 44°0.12
57 °
Hammond, Friday, 30 October
Climate normal for this date — 60-year average.
Average high57°
Average low44°
Average precipitation0.12 in
Chance of precipitation30%
Record high78° (2024)
Record low30° (1988)
Sat, 3156° / 45°0.15
56 °
Hammond, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high56°
Average low45°
Average precipitation0.15 in
Chance of precipitation40%
Record high73° (1974)
Record low27° (2023)
Sun, 0155° / 43°0.18
55 °
Hammond, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high55°
Average low43°
Average precipitation0.18 in
Chance of precipitation43%
Record high73° (2016)
Record low23° (2019)
Mon, 0254° / 42°0.12
54 °
Hammond, Monday, 2 November
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.12 in
Chance of precipitation40%
Record high73° (1961)
Record low25° (1991)
Tue, 0353° / 41°0.07
53 °
Hammond, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.07 in
Chance of precipitation25%
Record high72° (1987)
Record low19° (1991)
Wed, 0453° / 43°0.09
53 °
Hammond, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low43°
Average precipitation0.09 in
Chance of precipitation27%
Record high71° (2015)
Record low19° (1991)
Thu, 0553° / 41°0.13
53 °
Hammond, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.13 in
Chance of precipitation32%
Record high74° (1978)
Record low20° (1991)
Fri, 0653° / 40°0.07
53 °
Hammond, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.07 in
Chance of precipitation30%
Record high72° (1975)
Record low25° (1991)
Sat, 0752° / 40°0.06
52 °
Hammond, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.06 in
Chance of precipitation20%
Record high70° (2020)
Record low22° (1991)
Sun, 0851° / 39°0.06
51 °
Hammond, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.06 in
Chance of precipitation20%
Record high74° (2020)
Record low17° (1991)
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 Hammond, IN 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 Hammond, IN 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.