As of 02:19 CDT

Weather in Lyman, IA

64°Current weather

Lyman, Saturday, 10 October, 02:19

Clear. Feels like 63°. High 86°, low 64°.

Pressure29.88 inHg
Wind13.1 mph S
Humidity69%
Visibility6.2 mi
Dew point54°

Monthly outlook for Lyman, IA: average high 64.9°, average low 50.3°. That is 1.5° above the climate normal for October. Precipitation is expected on 1 day (about 0.3 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 10 October (86.3°), the coolest 18 October (33.5°).

64.9°/50.3°
Average high / low
+1.5°
Above normal
1 / 4
Wet days / normal
0.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
10 October – 19 October68.3°63°+3°
20 October – 29 October59.1°59.4°-0.2°
30 October – 8 Novemberat normal53.9°—

October records over 66 years

92.5°5 October 2024All-time high
13.6°27 October 1997All-time low

Climate normals and records are computed from the nearest reference point — Lewis (7 mi).

Sun, 1184° / 63°0Mostly clear
84 °Mostly clear

Lyman, Sunday, 11 October

Mostly clear. High 84°, low 63°.

Pressure29.80 inHg
Wind12.3 mph S
Humidity53%
Visibility6.2 mi
Dew point59°
Mon, 1286° / 69°0Clear
86 °Clear

Lyman, Monday, 12 October

Clear. High 86°, low 69°.

Pressure29.71 inHg
Wind13 mph S
Humidity54%
Visibility6.2 mi
Dew point63°
Tue, 1372° / 60°0Overcast
72 °Overcast

Lyman, Tuesday, 13 October

Overcast. High 72°, low 60°.

Pressure29.94 inHg
Wind7.1 mph NE
Humidity71%
Visibility6.2 mi
Dew point58°
Wed, 1468° / 59°0.02Light rain
68 °Light rain

Lyman, Wednesday, 14 October

Light rain. High 68°, low 59°.

Pressure30.15 inHg
Wind12 mph NE
Humidity63%
Visibility—
Dew point54°
Thu, 1566° / 55°0.03Light rain
66 °Light rain

Lyman, Thursday, 15 October

Light rain. High 66°, low 55°.

Pressure30.18 inHg
Wind15.7 mph NW
Humidity88%
Visibility—
Dew point56°
Fri, 1656° / 40°0Mostly clear
56 °Mostly clear

Lyman, Friday, 16 October

Mostly clear. High 56°, low 40°.

Pressure30.06 inHg
Wind26.5 mph W
Humidity48%
Visibility—
Dew point33°
Sat, 1745° / 37°0Overcast
45 °Overcast

Lyman, Saturday, 17 October

Overcast. High 45°, low 37°.

Pressure30.56 inHg
Wind22.6 mph NW
Humidity49%
Visibility—
Dew point25°
Sun, 1857° / 33°0Mostly clear
57 °Mostly clear

Lyman, Sunday, 18 October

Mostly clear. High 57°, low 33°.

Pressure30.21 inHg
Wind21.5 mph S
Humidity42%
Visibility—
Dew point28°
Mon, 1962° / 42°0Overcast
62 °Overcast

Lyman, Monday, 19 October

Overcast. High 62°, low 42°.

Pressure30.18 inHg
Wind13.5 mph S
Humidity45%
Visibility—
Dew point36°
Tue, 2063° / 50°0.03Light rain
63 °Light rain

Lyman, Tuesday, 20 October

Light rain. High 63°, low 50°.

Pressure30.03 inHg
Wind16.9 mph S
Humidity53%
Visibility—
Dew point38°
Wed, 2158° / 52°0.19Light rain
58 °Light rain

Lyman, Wednesday, 21 October

Light rain. High 58°, low 52°.

Pressure29.80 inHg
Wind15.9 mph S
Humidity90%
Visibility—
Dew point55°
Thu, 2262° / 49°0Overcast
62 °Overcast

Lyman, Thursday, 22 October

Overcast. High 62°, low 49°.

Pressure29.94 inHg
Wind20.3 mph N
Humidity57%
Visibility—
Dew point44°
Fri, 2366° / 45°0Partly cloudy
66 °Partly cloudy

Lyman, Friday, 23 October

Partly cloudy. High 66°, low 45°.

Pressure29.85 inHg
Wind22.2 mph NW
Humidity49%
Visibility—
Dew point41°
Sat, 2456° / 42°0Clear
56 °Clear

Lyman, Saturday, 24 October

Clear. High 56°, low 42°.

Pressure30.15 inHg
Wind16.6 mph NW
Humidity46%
Visibility—
Dew point31°
Sun, 2550° / 44°0.02Light rain
50 °Light rain

Lyman, Sunday, 25 October

Light rain. High 50°, low 44°.

Pressure29.97 inHg
Wind6.8 mph NE
Humidity78%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2659° / 42°0.08Climate normal
59 °Climate normal

Lyman, Monday, 26 October

Climate normal for this date — 60-year average.

Average high59°
Average low42°
Average precipitation0.08 in
Chance of precipitation28%
Record high76° (1989)
Record low23° (2020)
Tue, 2758° / 41°0.06Climate normal
58 °Climate normal

Lyman, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high58°
Average low41°
Average precipitation0.06 in
Chance of precipitation17%
Record high82° (1999)
Record low14° (1997)
Wed, 2857° / 40°0.07Climate normal
57 °Climate normal

Lyman, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high57°
Average low40°
Average precipitation0.07 in
Chance of precipitation17%
Record high79° (2016)
Record low23° (1967)
Thu, 2958° / 41°0.09Climate normal
58 °Climate normal

Lyman, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high58°
Average low41°
Average precipitation0.09 in
Chance of precipitation23%
Record high81° (2024)
Record low19° (1980)
Fri, 3057° / 41°0.12Climate normal
57 °Climate normal

Lyman, Friday, 30 October

Climate normal for this date — 60-year average.

Average high57°
Average low41°
Average precipitation0.12 in
Chance of precipitation30%
Record high76° (2024)
Record low22° (1991)
Sat, 3155° / 40°0.11Climate normal
55 °Climate normal

Lyman, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high55°
Average low40°
Average precipitation0.11 in
Chance of precipitation30%
Record high76° (1968)
Record low19° (1993)
Sun, 0155° / 39°0.16Climate normal
55 °Climate normal

Lyman, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high55°
Average low39°
Average precipitation0.16 in
Chance of precipitation32%
Record high76° (1990)
Record low21° (1991)
Mon, 0253° / 38°0.08Climate normal
53 °Climate normal

Lyman, Monday, 2 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.08 in
Chance of precipitation23%
Record high74° (1964)
Record low9° (1991)
Tue, 0354° / 38°0.09Climate normal
54 °Climate normal

Lyman, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high54°
Average low38°
Average precipitation0.09 in
Chance of precipitation22%
Record high76° (2022)
Record low6° (1991)
Wed, 0453° / 37°0.07Climate normal
53 °Climate normal

Lyman, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high53°
Average low37°
Average precipitation0.07 in
Chance of precipitation15%
Record high70° (1978)
Record low1° (1991)
Thu, 0553° / 37°0.05Climate normal
53 °Climate normal

Lyman, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high53°
Average low37°
Average precipitation0.05 in
Chance of precipitation22%
Record high72° (2015)
Record low19° (1967)
Fri, 0653° / 37°0.06Climate normal
53 °Climate normal

Lyman, Friday, 6 November

Climate normal for this date — 60-year average.

Average high53°
Average low37°
Average precipitation0.06 in
Chance of precipitation17%
Record high73° (1980)
Record low13° (1991)
Sat, 0753° / 36°0.02Climate normal
53 °Climate normal

Lyman, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high53°
Average low36°
Average precipitation0.02 in
Chance of precipitation12%
Record high71° (2001)
Record low-3° (1991)
Sun, 0853° / 36°0.04Climate normal
53 °Climate normal

Lyman, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high53°
Average low36°
Average precipitation0.04 in
Chance of precipitation18%
Record high77° (1999)
Record low-2° (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 Lyman, IA 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, IA 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.