As of 15:22 CDT

Weather in Lyman, SD

55°Current weather

Lyman, Thursday, 15 October, 15:22

Mostly clear. Feels like 53°. High 55°, low 44°.

Pressure30.24 inHg
Wind27 mph NW
Humidity49%
Visibility6.2 mi
Dew point36°

Monthly outlook for Lyman, SD: average high 62.2°, average low 47.7°. That is 2.2° above the climate normal for October. Precipitation is expected on 5 days (about 0.5 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 22 October (77.5°), the coolest 17 October (41.2°).

62.2°/47.7°
Average high / low
+2.2°
Above normal
5 / 3
Wet days / normal
0.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
15 October – 24 October64.4°59.6°+2.7°
25 October – 3 November58.4°54.3°+2.3°
4 November – 13 Novemberat normal48.6°—

October records over 66 years

92.8°4 October 1975All-time high
2.5°27 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Kennebec (6 mi).

Fri, 1652° / 41°0Clear
52 °Clear

Lyman, Friday, 16 October

Clear. High 52°, low 41°.

Pressure30.74 inHg
Wind9.7 mph NW
Humidity57%
Visibility6.2 mi
Dew point31°
Sat, 1770° / 41°0Clear
70 °Clear

Lyman, Saturday, 17 October

Clear. High 70°, low 41°.

Pressure30.18 inHg
Wind14.6 mph S
Humidity37%
Visibility6.2 mi
Dew point32°
Sun, 1866° / 46°0Clear
66 °Clear

Lyman, Sunday, 18 October

Clear. High 66°, low 46°.

Pressure30.03 inHg
Wind3.8 mph N
Humidity49%
Visibility6.2 mi
Dew point41°
Mon, 1963° / 45°0Clear
63 °Clear

Lyman, Monday, 19 October

Clear. High 63°, low 45°.

Pressure30.09 inHg
Wind5.8 mph NE
Humidity68%
Visibility6.2 mi
Dew point45°
Tue, 2067° / 47°0Clear
67 °Clear

Lyman, Tuesday, 20 October

Clear. High 67°, low 47°.

Pressure30.06 inHg
Wind12.4 mph SE
Humidity64%
Visibility—
Dew point49°
Wed, 2169° / 54°0Light rain
69 °Light rain

Lyman, Wednesday, 21 October

Light rain. High 69°, low 54°.

Pressure29.94 inHg
Wind15.3 mph S
Humidity72%
Visibility—
Dew point55°
Thu, 2278° / 60°0.03Light rain
78 °Light rain

Lyman, Thursday, 22 October

Light rain. High 78°, low 60°.

Pressure29.80 inHg
Wind14.8 mph SE
Humidity58%
Visibility—
Dew point57°
Fri, 2367° / 61°0.11Light rain
67 °Light rain

Lyman, Friday, 23 October

Light rain. High 67°, low 61°.

Pressure29.59 inHg
Wind20 mph SE
Humidity83%
Visibility—
Dew point59°
Sat, 2459° / 48°0.09Light rain
59 °Light rain

Lyman, Saturday, 24 October

Light rain. High 59°, low 48°.

Pressure30.03 inHg
Wind29.3 mph W
Humidity42%
Visibility—
Dew point34°
Sun, 2554° / 43°0Overcast
54 °Overcast

Lyman, Sunday, 25 October

Overcast. High 54°, low 43°.

Pressure30.50 inHg
Wind7.1 mph W
Humidity30%
Visibility—
Dew point20°
Mon, 2656° / 48°0.05Light rain
56 °Light rain

Lyman, Monday, 26 October

Light rain. High 56°, low 48°.

Pressure30.21 inHg
Wind15.2 mph SE
Humidity76%
Visibility—
Dew point46°
Tue, 2764° / 51°0Clear
64 °Clear

Lyman, Tuesday, 27 October

Clear. High 64°, low 51°.

Pressure30.00 inHg
Wind13.8 mph S
Humidity45%
Visibility—
Dew point40°
Wed, 2872° / 49°0Overcast
72 °Overcast

Lyman, Wednesday, 28 October

Overcast. High 72°, low 49°.

Pressure29.88 inHg
Wind17.5 mph SW
Humidity46%
Visibility—
Dew point45°
Thu, 2959° / 44°0Clear
59 °Clear

Lyman, Thursday, 29 October

Clear. High 59°, low 44°.

Pressure29.83 inHg
Wind11 mph W
Humidity42%
Visibility—
Dew point33°
Fri, 3047° / 41°0.07Light rain
47 °Light rain

Lyman, Friday, 30 October

Light rain. High 47°, low 41°.

Pressure30.00 inHg
Wind17.7 mph N
Humidity89%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3153° / 35°0.04Climate normal
53 °Climate normal

Lyman, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high53°
Average low35°
Average precipitation0.04 in
Chance of precipitation15%
Record high82° (2016)
Record low14° (2002)
Sun, 0151° / 36°0.03Climate normal
51 °Climate normal

Lyman, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high51°
Average low36°
Average precipitation0.03 in
Chance of precipitation18%
Record high77° (1990)
Record low12° (2002)
Mon, 0252° / 35°0.02Climate normal
52 °Climate normal

Lyman, Monday, 2 November

Climate normal for this date — 60-year average.

Average high52°
Average low35°
Average precipitation0.02 in
Chance of precipitation15%
Record high75° (1964)
Record low8° (1991)
Tue, 0351° / 35°0.03Climate normal
51 °Climate normal

Lyman, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high51°
Average low35°
Average precipitation0.03 in
Chance of precipitation17%
Record high73° (2020)
Record low6° (1991)
Wed, 0452° / 33°0.01Climate normal
52 °Climate normal

Lyman, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high52°
Average low33°
Average precipitation0.01 in
Chance of precipitation10%
Record high76° (1978)
Record low4° (1995)
Thu, 0552° / 34°0.03Climate normal
52 °Climate normal

Lyman, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high52°
Average low34°
Average precipitation0.03 in
Chance of precipitation17%
Record high77° (2001)
Record low15° (2003)
Fri, 0651° / 33°0.03Climate normal
51 °Climate normal

Lyman, Friday, 6 November

Climate normal for this date — 60-year average.

Average high51°
Average low33°
Average precipitation0.03 in
Chance of precipitation17%
Record high78° (2020)
Record low2° (2003)
Sat, 0751° / 33°0.03Climate normal
51 °Climate normal

Lyman, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high51°
Average low33°
Average precipitation0.03 in
Chance of precipitation12%
Record high72° (2006)
Record low2° (1991)
Sun, 0850° / 33°0.07Climate normal
50 °Climate normal

Lyman, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high50°
Average low33°
Average precipitation0.07 in
Chance of precipitation15%
Record high80° (1999)
Record low9° (1991)
Mon, 0947° / 32°0.05Climate normal
47 °Climate normal

Lyman, Monday, 9 November

Climate normal for this date — 60-year average.

Average high47°
Average low32°
Average precipitation0.05 in
Chance of precipitation20%
Record high70° (2016)
Record low7° (2000)
Tue, 1046° / 28°0.04Climate normal
46 °Climate normal

Lyman, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high46°
Average low28°
Average precipitation0.04 in
Chance of precipitation23%
Record high70° (1989)
Record low-2° (1986)
Wed, 1144° / 29°0.02Climate normal
44 °Climate normal

Lyman, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high44°
Average low29°
Average precipitation0.02 in
Chance of precipitation15%
Record high69° (2005)
Record low-5° (1986)
Thu, 1246° / 28°0.05Climate normal
46 °Climate normal

Lyman, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high46°
Average low28°
Average precipitation0.05 in
Chance of precipitation13%
Record high71° (1999)
Record low-3° (1986)
Fri, 1348° / 29°0.03Climate normal
48 °Climate normal

Lyman, Friday, 13 November

Climate normal for this date — 60-year average.

Average high48°
Average low29°
Average precipitation0.03 in
Chance of precipitation17%
Record high71° (1981)
Record low-14° (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 Lyman, SD 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 Lyman, SD 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.