Observed 7:15 PM CDT at KMCW

Chapin, IA weather

Clear and 64°18°, 18°10° warmer than a typical Oct 24.

Mostly agree

Now 64°18°

Clear

Wind: 6 mph9 km/h; From the west-southwest. Up to 7 mph11 km/h through 7 AM
Dew point: 52°11°; Comfortable
UV tomorrow: 4Moderate; Moderate 12–4 PM · peak 4
Air quality: 67Moderate; Main pollutant: PM10 (dust)
Pressure: 30.24 inHg1024 hPa; Rising · +0.04 inHg+1.5 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

About the same as this time yesterday (66°19° then, 65°18° now)

Good hours for

Low 51°11° tomorrow at 8 AM
Above 60°16° tomorrow by 11 AM
High 70°21° tomorrow at 4 PM
Below 60°16° tomorrow night after 8 PM

TonightDown to 53°12° by 5 AM · Mostly cloudy
Tomorrow morningUp to 62°17° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 70°21° by 4 PM · Mostly cloudy
Tomorrow nightDown to 48°9° by 5 AM · Mostly cloudy
Monday morningUp to 57°14° by 11 AM · Mostly cloudy
Monday afternoonUp to 66°19° by 3 PM · Cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 7p	Mostly cloudy	67°19° (likely 66°19° to 69°21°)	67°19°	0%	7 mph11 km/h from S, gusts 12 mph20 km/h	54%	53%	0
Sat 8p	Mostly cloudy	65°18° (likely 64°18° to 67°19°)	65°18°	0%	7 mph11 km/h from S, gusts 12 mph20 km/h	60%	47%	0
Sat 9p	Cloudy	64°18° (likely 61°16° to 64°18°)	64°18°	0%	6 mph10 km/h from SSW, gusts 14 mph22 km/h	63%	79%	0
Sat 10p	Cloudy	62°17° (likely 59°15° to 62°17°)	62°17°	0%	7 mph11 km/h from WNW, gusts 13 mph21 km/h	67%	81%	0
Sat 11p	Cloudy	60°16° (likely 57°14° to 60°16°)	60°16°	5%	6 mph10 km/h from NNW, gusts 13 mph21 km/h	72%	82%	0
Sun 12a	Cloudy	59°15° (likely 55°13° to 59°15°)	59°15°	5%	6 mph10 km/h from N, gusts 12 mph19 km/h	72%	83%	0
Sun 1a	Cloudy	58°14° (likely 54°12° to 58°14°)	58°14°	5%	5 mph8 km/h from N, gusts 12 mph19 km/h	75%	87%	0
Sun 2a	Cloudy	56°13° (likely 54°12° to 56°13°)	56°13°	5%	3 mph5 km/h from N, gusts 11 mph18 km/h	77%	84%	0
Sun 3a	Cloudy	55°13° (likely 53°12° to 56°13°)	55°13°	5%	2 mph3 km/h from N, gusts 11 mph18 km/h	80%	83%	0
Sun 4a	Cloudy	54°12° (likely 52°11° to 55°13°)	54°12°	5%	3 mph5 km/h from N, gusts 12 mph19 km/h	83%	80%	0
Sun 5a	Cloudy	53°12° (likely 51°11° to 54°12°)	53°12°	5%	3 mph5 km/h from NNE, gusts 11 mph18 km/h	83%	80%	0
Sun 6a	Cloudy	52°11° (likely 51°11° to 53°12°)	52°11°	5%	3 mph5 km/h from NNE, gusts 11 mph18 km/h	86%	77%	0
Sun 7a	Cloudy	52°11° (likely 50°10° to 53°12°)	52°11°	5%	3 mph5 km/h from NNE, gusts 11 mph18 km/h	86%	73%	0
Sun 8a	Cloudy	51°11° (likely 50°10° to 53°12°)	51°11°	5%	3 mph5 km/h from NNE, gusts 11 mph17 km/h	89%	67%	0
Sun 9a	Cloudy	54°12° (likely 51°11° to 54°12°)	54°12°	5%	3 mph5 km/h from NE, gusts 10 mph17 km/h	83%	64%	0
Sun 10a	Cloudy	59°15° (likely 53°12° to 59°15°)	59°15°	5%	5 mph8 km/h from NE, gusts 12 mph20 km/h	69%	66%	1
Sun 11a	Cloudy	62°17° (likely 55°13° to 62°17°)	62°17°	5%	5 mph8 km/h from NE, gusts 12 mph19 km/h	62%	61%	2
Sun 12p	Cloudy	65°18° (likely 58°14° to 65°18°)	65°18°	5%	3 mph5 km/h from NE, gusts 11 mph17 km/h	56%	74%	3
Sun 1p	Cloudy	67°19° (likely 59°15° to 67°19°)	67°19°	5%	3 mph5 km/h from NE, gusts 10 mph15 km/h	52%	77%	4
Sun 2p	Cloudy	69°21° (likely 61°16° to 69°21°)	69°21°	5%	3 mph5 km/h from NE, gusts 10 mph16 km/h	49%	79%	4
Sun 3p	Cloudy	69°21° (likely 62°17° to 69°21°)	69°21°	5%	3 mph5 km/h from NE, gusts 10 mph15 km/h	49%	80%	3
Sun 4p	Cloudy	70°21° (likely 61°16° to 70°21°)	70°21°	5%	3 mph5 km/h from NNE, gusts 10 mph16 km/h	46%	80%	2
Sun 5p	Cloudy	68°20° (likely 61°16° to 68°20°)	68°20°	5%	5 mph8 km/h from NNE, gusts 11 mph17 km/h	47%	80%	1
Sun 6p	Cloudy	67°19° (likely 58°14° to 67°19°)	67°19°	5%	5 mph8 km/h from NNE, gusts 12 mph20 km/h	49%	77%	0
Sun 7p	Cloudy	63°17° (likely 54°12° to 63°17°)	63°17°	0%	6 mph10 km/h from NNE, gusts 17 mph27 km/h	54%	76%	0
Sun 8p	Cloudy	57°14° (likely 52°11° to 59°15°)	57°14°	0%	7 mph11 km/h from NNE, gusts 19 mph31 km/h	62%	79%	0
Sun 9p	Cloudy	55°13° (likely 51°11° to 57°14°)	55°13°	0%	6 mph10 km/h from NNE, gusts 18 mph29 km/h	61%	80%	0
Sun 10p	Cloudy	53°12° (likely 49°9° to 54°12°)	53°12°	0%	6 mph10 km/h from NNE, gusts 21 mph34 km/h	61%	78%	0
Sun 11p	Cloudy	52°11° (likely 48°9° to 53°12°)	52°11°	0%	6 mph10 km/h from NNE, gusts 19 mph30 km/h	61%	74%	0
Mon 12a	Cloudy	51°11° (likely 48°9° to 52°11°)	51°11°	0%	6 mph10 km/h from NE, gusts 16 mph26 km/h	61%	83%	0
Mon 1a	Cloudy	50°10° (likely 47°8° to 51°11°)	48°9°	0%	6 mph10 km/h from NE, gusts 17 mph27 km/h	61%	90%	0
Mon 2a	Cloudy	50°10° (likely 46°8° to 51°11°)	48°9°	0%	6 mph10 km/h from NE, gusts 17 mph27 km/h	58%	91%	0
Mon 3a	Cloudy	49°9° (likely 46°8° to 50°10°)	47°8°	0%	6 mph10 km/h from NE, gusts 20 mph31 km/h	61%	85%	0
Mon 4a	Cloudy	49°9° (likely 47°8° to 50°10°)	47°8°	0%	6 mph10 km/h from NE, gusts 21 mph33 km/h	61%	70%	0
Mon 5a	Cloudy	48°9° (likely 47°8° to 50°10°)	45°7°	0%	6 mph10 km/h from NE, gusts 20 mph32 km/h	63%	72%	0
Mon 6a	Cloudy	48°9° (likely 47°8° to 49°9°)	45°7°	0%	6 mph10 km/h from NE, gusts 20 mph33 km/h	56%	77%	0
Mon 7a	Cloudy	48°9° (likely 47°8° to 49°9°)	45°7°	5%	6 mph10 km/h from ENE, gusts 18 mph29 km/h	56%	80%	0
Mon 8a	Cloudy	47°8° (likely 46°8° to 48°9°)	44°7°	5%	7 mph11 km/h from ENE, gusts 20 mph32 km/h	58%	80%	0
Mon 9a	Cloudy	50°10° (likely 48°9° to 50°10°)	47°8°	5%	8 mph13 km/h from ENE, gusts 19 mph30 km/h	56%	80%	0
Mon 10a	Cloudy	54°12° (likely 49°9° to 54°12°)	54°12°	5%	8 mph13 km/h from ENE, gusts 23 mph38 km/h	52%	88%	1
Mon 11a	Cloudy	57°14° (likely 51°11° to 57°14°)	57°14°	5%	8 mph13 km/h from E, gusts 22 mph35 km/h	49%	88%	2
Mon 12p	Cloudy	60°16° (likely 54°12° to 60°16°)	60°16°	5%	8 mph13 km/h from E, gusts 20 mph33 km/h	46%	82%	2
Mon 1p	Cloudy	63°17° (likely 56°13° to 63°17°)	63°17°	0%	8 mph13 km/h from E, gusts 19 mph30 km/h	41%	87%	3
Mon 2p	Mostly cloudy	65°18° (likely 58°14° to 65°18°)	65°18°	0%	8 mph13 km/h from E, gusts 17 mph27 km/h	40%	81%	3
Mon 3p	Cloudy	66°19° (likely 59°15° to 66°19°)	66°19°	0%	8 mph13 km/h from E, gusts 18 mph29 km/h	38%	74%	3
Mon 4p	Cloudy	66°19° (likely 59°15° to 66°19°)	66°19°	0%	8 mph13 km/h from E, gusts 18 mph29 km/h	40%	98%	2
Mon 5p	Cloudy	65°18° (likely 58°14° to 65°18°)	65°18°	0%	8 mph13 km/h from E, gusts 18 mph29 km/h	43%	92%	1
Mon 6p	Cloudy	63°17° (likely 57°14° to 63°17°)	63°17°	0%	7 mph11 km/h from E, gusts 19 mph30 km/h	46%	97%	0

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Cloudy. High 76°24°, low 51°11°. Typical 58°14° / 35°2°. Dry. Mostly agree.
1. Evening
  6 PM–midnight
  Cloudy, 65°18°
  Dry
2. Overnight
  midnight–6 AM
  Cloudy, 53°12°
  Dry
Official NWS forecast
Tonight: Mostly cloudy. Low around 51, with temperatures rising to around 53 overnight. North northwest wind 2 to 7 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
74°23°–77°25°
Low, likely
51°11°–57°14°
Typical high / low
58°14° / 35°2°
Wind
16 mph26 km/h, gusts 26 mph41 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 70°21°, low 46°8°. Typical 57°14° / 34°1°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 48°9°
  Dry
Official NWS forecast
Day: Partly sunny. High near 70, with temperatures falling to around 68 in the afternoon. Northeast wind around 5 mph.
Night: Mostly cloudy. Low around 46, with temperatures rising to around 48 overnight. Northeast wind around 7 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
62°17°–70°21°
Low, likely
46°8°–51°11°
Typical high / low
57°14° / 34°1°
Wind
14 mph23 km/h, gusts 24 mph39 km/h
UV peak
4
Monday, Oct 26. Mostly cloudy. High 66°19°, low 49°9°. Typical 56°13° / 34°1°. Dry. Mostly agree. Best day outdoors this week.
1. Morning
  6 AM–noon
  Cloudy, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 55°13°
  Dry
Official NWS forecast
Day: Mostly cloudy, with a high near 66. East northeast wind around 8 mph.
Night: Mostly cloudy, with a low around 49. East southeast wind around 8 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Best day outdoors this week: the one dry, mild day the forecasts agree on (high 66°19°).
High, likely
59°15°–66°19°
Low, likely
46°8°–49°9°
Typical high / low
56°13° / 34°1°
Wind
14 mph23 km/h, gusts 27 mph44 km/h
UV peak
3
Tuesday, Oct 27. Drizzle. High 70°21°, low 53°12°. Typical 56°13° / 34°1°. Rain 0.05 in1.3 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 67°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 58°15°
  30% chance · 0.01 in0.3 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers after 1pm. Mostly cloudy, with a high near 70. Chance of precipitation is 20%.
Night: A chance of rain showers. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
65°18°–70°21°
Low, likely
51°11°–55°13°
Typical high / low
56°13° / 34°1°
Wind
20 mph32 km/h, gusts 33 mph53 km/h
UV peak
2
Wednesday, Oct 28. Showers. High 72°22°, low 50°10°. Typical 55°13° / 33°1°. Rain 0.13 in3.3 mm, 40% chance. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 59°15°
  30% chance
2. Afternoon
  noon–6 PM
  Cloudy, 71°22°
  Dry
3. Evening
  6 PM–midnight
  Drizzle, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Showers, 53°12°
  20% chance · 0.14 in3.5 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain showers. Partly sunny, with a high near 72. Chance of precipitation is 40%.
Night: A chance of rain showers before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 50. Chance of precipitation is 40%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
68°20°–73°23°
Low, likely
50°10°–56°13°
Typical high / low
55°13° / 33°1°
Wind
17 mph27 km/h, gusts 32 mph52 km/h
UV peak
4
Thursday, Oct 29. Showers. High 72°22°, low 53°12°. Typical 55°13° / 33°1°. Rain 0.14 in3.6 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Drizzle, 55°13°
  30% chance · 0.05 in1.3 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain showers before 1pm. Mostly sunny, with a high near 72. Chance of precipitation is 30%.
Night: A chance of rain showers after 7pm. Partly cloudy, with a low around 53. Chance of precipitation is 30%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
63°17°–72°22°
Low, likely
46°8°–56°13°
Typical high / low
55°13° / 33°1°
Wind
13 mph21 km/h, gusts 32 mph51 km/h
UV peak
1
Friday, Oct 30. Showers. High 73°23°, low 54°12°. Typical 54°12° / 32°0°. Rain 0.25 in6.4 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 58°15°
  30% chance · 0.1 in2.4 mm
2. Afternoon
  noon–6 PM
  Drizzle, 70°21°
  30% chance · 0.04 in1.1 mm
3. Evening
  6 PM–midnight
  Drizzle, 65°18°
  40% chance · 0.06 in1.4 mm
4. Overnight
  midnight–6 AM
  Drizzle, 60°16°
  40% chance · 0.07 in1.7 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain showers. Partly sunny, with a high near 73. Chance of precipitation is 30%.
Night: Rain showers likely. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
65°18°–75°24°
Low, likely
48°9°–62°17°
Typical high / low
54°12° / 32°0°
Wind
23 mph36 km/h, gusts 39 mph63 km/h
UV peak
2
Saturday, Oct 31. Showers. High 68°20°, low 58°14°. Typical 54°12° / 32°0°. Rain 0.35 in8.9 mm, 70% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 60°15°
  50% chance · 0.09 in2.4 mm
2. Afternoon
  noon–6 PM
  Drizzle, 66°19°
  50% chance · 0.06 in1.5 mm
3. Evening
  6 PM–midnight
  Drizzle, 60°16°
  50% chance · 0.09 in2.4 mm
4. Overnight
  midnight–6 AM
  Drizzle, 59°15°
  50% chance · 0.1 in2.6 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain showers likely. Mostly cloudy, with a high near 68.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–71°22°
Low, likely
57°14°–59°15°
Typical high / low
54°12° / 32°0°
Wind
17 mph27 km/h, gusts 29 mph47 km/h
UV peak
3
Sunday, Nov 1. Drizzle. High 64°18°, low 52°11°. Typical 53°12° / 31°−1°. Rain 0.21 in5.3 mm, 50% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 59°15°
  40% chance · 0.05 in1.1 mm
2. Afternoon
  noon–6 PM
  Cloudy, 61°16°
  30% chance
3. Evening
  6 PM–midnight
  Drizzle, 56°13°
  30% chance · 0.03 in0.6 mm
4. Overnight
  midnight–6 AM
  Mostly clear, 50°10°
  20% chance · 0.11 in2.9 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
60°16°–67°19°
Low, likely
41°5°–58°14°
Typical high / low
53°12° / 31°−1°
Wind
18 mph29 km/h, gusts 31 mph49 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 61°16°, low 49°9°. Typical 52°11° / 31°−1°. Rain 0.48 in12 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 52°11°
  30% chance · 0.21 in5.4 mm
2. Afternoon
  noon–6 PM
  Sunny, 61°16°
  30% chance · 0.09 in2.2 mm
3. Evening
  6 PM–midnight
  Partly cloudy, 54°12°
  40% chance · 0.01 in0.3 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
49°9°–70°21°
Low, likely
33°1°–57°14°
Typical high / low
52°11° / 31°−1°
Wind
24 mph38 km/h, gusts 42 mph68 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 76°, low 51°.
Tomorrow
Dry, high 70°, low 46°, cooling off.
Monday
Dry, high 66°, low 49°, cooling off.
Rest of week
Highs 61–73°; chance of precipitation on Saturday, Sunday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (DMX) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Iowa River near Rowan

21 mi

Below flood stage

Level: 4.0 ft
Flow: 100 cfs

Reading from Sat 6 PM · NWS gauge page

Clear Lake at Clear Lake

22 mi

Level: 4.6 ft

Reading from Sat 6 PM · NWS gauge page

Willow Creek at Mason City US 18 Bus

22 mi

Level: 85.8 ft

Reading from Sat 5:45 PM · NWS gauge page

Winnebago River at Mason City

23 mi

Below flood stage

Level: 5.3 ft
Flow: 272 cfs

Reading from Sat 6:15 PM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 90% less heating than a typical week.

This week 15Typical 142

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 1
h below 17°F: 0
h below 5°F: 0

47, 17 and 5°F are the test points heat pumps are rated at.

Comfort

Dry air outside (dew point 52°F).

Open the windows?

Today, 8:00 PM–11:00 PM

Good stretch to open the windows.

Is this typical?

Hampton · official normals 1991–2020 · records 1893–2026

Oct 24, today vs a typical year

Today’s expected high is 18°10° warmer than typical.

Last 7 days vs normal

On average 8°5° warmer than normal (daily mean temperature).

+2°+1°MonOct 19
+4°+2°TueOct 20
+6°+3°WedOct 21
+12°+7°ThuOct 22
+18°+10°FriOct 23
—SatOct 24
—SunOct 25

Chapin weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 39 min; Losing 2 min 44 s a day; shortest Dec 21, 1 h 38 min less
Golden hour: 5:36–6:34 PM; Morning 7:19–8:16 AM
Blue hour: 6:34–6:45 PM; Morning 7:08–7:19 AM; first light 7:08 AM

Stars tonight? Poor

Clouds most of the night (about 76% cover).

Moon

Waxing gibbous

98% lit · growing

Today: sets 5:50 AM · rises 5:14 PM
Full moon: Oct 25
New moon: Nov 9

Looking west from Chapin. A level horizon.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.