Observed 9:15 PM CDT at KHNR

Portsmouth, IA weather

Clear and 57°14°, 15°8° warmer than a typical Oct 24.

Mostly agree

Now 57°14°

Clear

Wind: 7 mph11 km/h; From the north. 58–8 mph13 km/h through 9 AM
Dew point: 50°10°; Comfortable
UV tomorrow: 4Moderate; Moderate 11 AM–5 PM · peak 4
Pressure: 30.29 inHg1026 hPa; Rising · +0.06 inHg+1.9 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

11°6° cooler than this time yesterday (68°20° then, 57°14° now)

Good hours for

Low 50°10° tomorrow at 7 AM
Above 60°16° tomorrow by 11 AM
High 73°23° tomorrow at 5 PM
Below 60°16° tomorrow night after 9 PM

TonightDown to 51°11° by 5 AM · Mostly cloudy
Tomorrow morningUp to 63°17° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 73°23° by 5 PM · Mostly cloudy
Tomorrow nightDown to 52°11° by 5 AM · rain chance 20% · Mostly cloudy
Monday morningUp to 62°17° by 11 AM · Mostly cloudy
Monday afternoonUp to 71°22° by 4 PM · Cloudy
Monday nightDown to 64°18° by 8 PM · Cloudy · rain chance 20%

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 9p	Cloudy	58°14° (likely 57°14° to 60°16°)	58°14°	0%	7 mph11 km/h from N, gusts 16 mph26 km/h	71%	81%	0
Sat 10p	Cloudy	57°14° (likely 56°13° to 58°14°)	57°14°	0%	6 mph10 km/h from N, gusts 15 mph24 km/h	75%	81%	0
Sat 11p	Cloudy	57°14° (likely 56°13° to 57°14°)	57°14°	0%	6 mph10 km/h from N, gusts 14 mph22 km/h	75%	81%	0
Sun 12a	Cloudy	56°13° (likely 55°13° to 56°13°)	56°13°	0%	5 mph8 km/h from N, gusts 12 mph20 km/h	80%	81%	0
Sun 1a	Cloudy	55°13° (likely 54°12° to 56°13°)	55°13°	0%	6 mph10 km/h from N, gusts 12 mph19 km/h	80%	87%	0
Sun 2a	Cloudy	54°12° (likely 53°12° to 55°13°)	54°12°	0%	6 mph10 km/h from NNE, gusts 12 mph19 km/h	86%	85%	0
Sun 3a	Cloudy	54°12° (likely 53°12° to 54°12°)	54°12°	0%	6 mph10 km/h from NE, gusts 12 mph19 km/h	86%	81%	0
Sun 4a	Cloudy	52°11° (likely 52°11° to 54°12°)	52°11°	0%	6 mph10 km/h from NNE, gusts 13 mph21 km/h	93%	84%	0
Sun 5a	Cloudy	51°11° (likely 51°11° to 53°12°)	51°11°	0%	6 mph10 km/h from NE, gusts 13 mph21 km/h	96%	83%	0
Sun 6a	Partly cloudy	51°11° (likely 50°10° to 52°11°)	51°11°	0%	6 mph10 km/h from NE, gusts 13 mph21 km/h	96%	83%	0
Sun 7a	Cloudy	50°10° (likely 50°10° to 52°11°)	48°9°	0%	6 mph10 km/h from NE, gusts 14 mph22 km/h	96%	84%	0
Sun 8a	Cloudy	51°11° (likely 49°9° to 52°11°)	51°11°	0%	6 mph10 km/h from ENE, gusts 13 mph21 km/h	93%	83%	0
Sun 9a	Cloudy	53°12° (likely 51°11° to 54°12°)	53°12°	0%	8 mph13 km/h from ENE, gusts 12 mph20 km/h	93%	77%	0
Sun 10a	Partly sunny	59°15° (likely 53°12° to 59°15°)	59°15°	0%	8 mph13 km/h from E, gusts 12 mph20 km/h	75%	64%	1
Sun 11a	Partly sunny	63°17° (likely 56°13° to 63°17°)	63°17°	0%	8 mph13 km/h from E, gusts 11 mph18 km/h	67%	71%	3
Sun 12p	Partly sunny	67°19° (likely 59°15° to 67°19°)	67°19°	0%	7 mph11 km/h from E, gusts 9 mph15 km/h	59%	76%	4
Sun 1p	Cloudy	68°20° (likely 61°16° to 69°21°)	68°20°	0%	6 mph10 km/h from E, gusts 8 mph13 km/h	57%	79%	4
Sun 2p	Cloudy	71°22° (likely 64°18° to 71°22°)	71°22°	0%	5 mph8 km/h from E, gusts 7 mph12 km/h	51%	78%	4
Sun 3p	Cloudy	72°22° (likely 66°19° to 73°23°)	72°22°	0%	3 mph5 km/h from E, gusts 7 mph11 km/h	49%	75%	4
Sun 4p	Partly sunny	72°22° (likely 67°19° to 73°23°)	72°22°	0%	6 mph10 km/h from E, gusts 8 mph13 km/h	48%	73%	3
Sun 5p	Cloudy	73°23° (likely 66°19° to 73°23°)	73°23°	0%	5 mph8 km/h from E, gusts 9 mph14 km/h	44%	74%	2
Sun 6p	Cloudy	70°21° (likely 63°17° to 70°21°)	70°21°	0%	6 mph10 km/h from NE, gusts 11 mph18 km/h	49%	77%	1
Sun 7p	Cloudy	66°19° (likely 60°16° to 66°19°)	66°19°	0%	3 mph5 km/h from ENE, gusts 14 mph22 km/h	56%	74%	0
Sun 8p	Cloudy	64°18° (likely 57°14° to 64°18°)	64°18°	0%	5 mph8 km/h from ENE, gusts 16 mph26 km/h	60%	90%	0
Sun 9p	Cloudy	59°15° (likely 54°12° to 62°17°)	59°15°	0%	6 mph10 km/h from ENE, gusts 18 mph29 km/h	72%	80%	0
Sun 10p	Cloudy	57°14° (likely 52°11° to 61°16°)	57°14°	5%	6 mph10 km/h from E, gusts 18 mph30 km/h	75%	82%	0
Sun 11p	Cloudy	56°13° (likely 51°11° to 60°16°)	56°13°	0%	6 mph10 km/h from E, gusts 20 mph32 km/h	77%	84%	0
Mon 12a	Cloudy	55°13° (likely 49°9° to 59°15°)	55°13°	0%	6 mph10 km/h from E, gusts 20 mph33 km/h	77%	83%	0
Mon 1a	Cloudy	55°13° (likely 49°9° to 57°14°)	55°13°	5%	6 mph10 km/h from E, gusts 20 mph32 km/h	77%	81%	0
Mon 2a	Cloudy	54°12° (likely 49°9° to 56°13°)	54°12°	10%	5 mph8 km/h from E, gusts 20 mph33 km/h	80%	83%	0
Mon 3a	Cloudy	54°12° (likely 49°9° to 55°13°)	54°12°	20%	5 mph8 km/h from E, gusts 19 mph30 km/h	80%	85%	0
Mon 4a	Cloudy	54°12° (likely 48°9° to 54°12°)	54°12°	20%	5 mph8 km/h from E, gusts 20 mph32 km/h	80%	87%	0
Mon 5a	Cloudy	52°11° (likely 47°8° to 54°12°)	52°11°	20%	5 mph8 km/h from E, gusts 20 mph32 km/h	83%	83%	0
Mon 6a	Cloudy	52°11° (likely 46°8° to 53°12°)	52°11°	10%	6 mph10 km/h from E, gusts 20 mph33 km/h	83%	86%	0
Mon 7a	Cloudy	52°11° (likely 45°7° to 52°11°)	52°11°	10%	6 mph10 km/h from E, gusts 21 mph34 km/h	83%	81%	0
Mon 8a	Cloudy	51°11° (likely 45°7° to 52°11°)	51°11°	10%	7 mph11 km/h from E, gusts 20 mph32 km/h	83%	82%	0
Mon 9a	Cloudy	54°12° (likely 47°8° to 54°12°)	54°12°	10%	7 mph11 km/h from E, gusts 21 mph33 km/h	77%	85%	0
Mon 10a	Mostly cloudy	58°14° (likely 48°9° to 58°14°)	58°14°	10%	7 mph11 km/h from ESE, gusts 23 mph36 km/h	72%	77%	1
Mon 11a	Cloudy	62°17° (likely 51°11° to 62°17°)	62°17°	10%	8 mph13 km/h from ESE, gusts 20 mph33 km/h	62%	82%	1
Mon 12p	Cloudy	65°18° (likely 52°11° to 65°18°)	65°18°	10%	8 mph13 km/h from SE, gusts 20 mph32 km/h	56%	89%	3
Mon 1p	Cloudy	68°20° (likely 54°12° to 68°20°)	68°20°	10%	9 mph14 km/h from SE, gusts 21 mph33 km/h	51%	90%	3
Mon 2p	Cloudy	69°21° (likely 56°13° to 69°21°)	69°21°	10%	10 mph16 km/h from SSE, gusts 20 mph32 km/h	49%	91%	1
Mon 3p	Partly sunny	70°21° (likely 58°14° to 70°21°)	70°21°	10%	10 mph16 km/h from SSE, gusts 19 mph31 km/h	46%	81%	3
Mon 4p	Cloudy	71°22° (likely 59°15° to 71°22°)	71°22°	10%	10 mph16 km/h from SSE, gusts 18 mph30 km/h	44%	77%	2
Mon 5p	Drizzle	70°21° (likely 60°16° to 70°21°)	70°21°	10%	9 mph14 km/h from SSE, gusts 17 mph28 km/h	46%	90%	1
Mon 6p	Cloudy	68°20° (likely 59°15° to 69°21°)	68°20°	10%	9 mph14 km/h from SSE, gusts 17 mph28 km/h	49%	97%	0
Mon 7p	Showers	66°19° (likely 59°15° to 68°20°)	66°19°	20%	8 mph13 km/h from SSE, gusts 19 mph30 km/h	52%	94%	0
Mon 8p	Showers	64°18° (likely 62°17° to 68°20°)	64°18°	20%	8 mph13 km/h from SSE, gusts 20 mph32 km/h	56%	87%	0

Days ahead

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

Today, Oct 24. Cloudy. High 76°24°, low 50°10°. Typical 61°16° / 35°2°. Dry. Mostly agree.
1. Evening
  6 PM–midnight
  Cloudy, 57°14°
  Dry
2. Overnight
  midnight–6 AM
  Cloudy, 51°11°
  Dry
Official NWS forecast
Tonight: Mostly cloudy, with a low around 50. North northeast wind around 7 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–77°25°
Low, likely
50°10°–57°14°
Typical high / low
61°16° / 35°2°
Wind
18 mph28 km/h, gusts 29 mph46 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 73°23°, low 51°11°. Typical 60°16° / 34°1°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 52°11°
  20% chance
Official NWS forecast
Day: Mostly sunny, with a high near 73. East northeast wind 3 to 8 mph.
Night: A slight chance of rain showers after 3am. Mostly cloudy, with a low around 51. East northeast wind around 6 mph. Chance of precipitation is 20%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
67°19°–73°23°
Low, likely
49°9°–52°11°
Typical high / low
60°16° / 34°1°
Wind
13 mph20 km/h, gusts 24 mph38 km/h
UV peak
4
Monday, Oct 26. Drizzle. High 71°22°, low 53°12°. Typical 60°16° / 34°1°. Rain 0.04 in1 mm, 10% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 71°22°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 60°16°
  Dry
Official NWS forecast
Day: Mostly cloudy, with a high near 71. East southeast wind 6 to 10 mph, with gusts as high as 16 mph.
Night: A slight chance of rain showers after 7pm. Mostly cloudy, with a low around 53. South southeast wind around 9 mph. Chance of precipitation is 20%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–71°22°
Low, likely
46°8°–53°12°
Typical high / low
60°16° / 34°1°
Wind
16 mph25 km/h, gusts 32 mph51 km/h
UV peak
3
Tuesday, Oct 27. Showers. High 68°20°, low 54°12°. Typical 59°15° / 34°1°. Rain 0.02 in0.5 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 58°15°
  30% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers. Mostly cloudy, with a high near 68. South wind 5 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 20%.
Night: A slight chance of rain showers. Mostly cloudy, with a low around 54. South wind around 9 mph, with gusts as high as 16 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
65°18°–69°21°
Low, likely
50°10°–60°16°
Typical high / low
59°15° / 34°1°
Wind
17 mph27 km/h, gusts 34 mph55 km/h
UV peak
3
Wednesday, Oct 28. Thunderstorms. High 72°22°, low 52°11°. Typical 58°14° / 33°1°. Storms 0.11 in2.8 mm, 20% chance. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 58°14°
  20% chance
2. Afternoon
  noon–6 PM
  Mostly sunny, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Showers, 67°19°
  30% chance · 0.08 in2 mm
4. Overnight
  midnight–6 AM
  Showers, 58°14°
  30% chance · 0.15 in3.7 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 72. South southwest wind around 9 mph.
Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 52. South wind around 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
71°22°–75°24°
Low, likely
52°11°–59°15°
Typical high / low
58°14° / 33°1°
Wind
16 mph26 km/h, gusts 32 mph51 km/h
UV peak
4
Thursday, Oct 29. Thunderstorms. High 74°23°, low 57°14°. Typical 58°14° / 33°1°. Storms 0.27 in6.9 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 58°14°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 69°20°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 65°18°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 63°17°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 74. Southeast wind 3 to 9 mph.
Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 57. East southeast wind 7 to 10 mph, with gusts as high as 17 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
66°19°–74°23°
Low, likely
52°11°–59°15°
Typical high / low
58°14° / 33°1°
Wind
14 mph23 km/h, gusts 28 mph44 km/h
UV peak
2
Friday, Oct 30. Showers. High 74°23°, low 55°13°. Typical 57°14° / 32°0°. Rain 0.3 in7.6 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 64°18°
  30% chance · 0.14 in3.6 mm
2. Afternoon
  noon–6 PM
  Drizzle, 73°23°
  30% chance · 0.03 in0.9 mm
3. Evening
  6 PM–midnight
  Drizzle, 69°20°
  40% chance · 0.03 in0.7 mm
4. Overnight
  midnight–6 AM
  Drizzle, 61°16°
  40% chance · 0.03 in0.7 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain showers. Mostly cloudy, with a high near 74. South southeast wind 10 to 15 mph, with gusts as high as 22 mph.
Night: A chance of rain showers. Mostly cloudy, with a low around 55. South southeast wind around 13 mph, with gusts as high as 21 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
69°21°–76°24°
Low, likely
55°13°–65°18°
Typical high / low
57°14° / 32°0°
Wind
20 mph33 km/h, gusts 35 mph57 km/h
UV peak
3
Saturday, Oct 31. Drizzle. High 67°19°, low 59°15°. Typical 57°14° / 32°0°. Rain 0.22 in5.6 mm, 70% chance. Forecasts agree.
1. Morning
  6 AM–noon
  Drizzle, 61°16°
  50% chance · 0.04 in1 mm
2. Afternoon
  noon–6 PM
  Drizzle, 65°18°
  60% chance · 0.06 in1.6 mm
3. Evening
  6 PM–midnight
  Drizzle, 62°16°
  50% chance · 0.09 in2.4 mm
4. Overnight
  midnight–6 AM
  Drizzle, 58°15°
  40% chance · 0.09 in2.2 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain showers likely. Mostly cloudy, with a high near 67. South wind 10 to 14 mph, with gusts as high as 21 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
64°18°–67°19°
Low, likely
56°13°–61°16°
Typical high / low
57°14° / 32°0°
Wind
17 mph27 km/h, gusts 29 mph47 km/h
UV peak
2
Sunday, Nov 1. Drizzle. High 64°18°, low 52°11°. Typical 56°13° / 32°0°. Rain 0.18 in4.6 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 55°13°
  30% chance
2. Afternoon
  noon–6 PM
  Drizzle, 60°15°
  30% chance · 0.03 in0.7 mm
3. Evening
  6 PM–midnight
  Drizzle, 56°13°
  30% chance · 0.05 in1.3 mm
4. Overnight
  midnight–6 AM
  Mostly clear, 52°11°
  30% chance · 0.28 in7.2 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
61°16°–68°20°
Low, likely
38°3°–60°16°
Typical high / low
56°13° / 32°0°
Wind
16 mph26 km/h, gusts 26 mph41 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 65°18°, low 49°9°. Typical 56°13° / 31°−1°. Rain 0.51 in13 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 55°13°
  30% chance · 0.1 in2.4 mm
2. Afternoon
  noon–6 PM
  Partly sunny, 65°18°
  30% chance · 0.03 in0.7 mm
3. Evening
  6 PM–midnight
  Clear, 55°13°
  30% chance
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
54°12°–76°24°
Low, likely
36°2°–54°12°
Typical high / low
56°13° / 31°−1°
Wind
22 mph36 km/h, gusts 44 mph70 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 76°, low 50°.
Tomorrow
Dry, high 73°, low 51°, cooling off.
Monday
Dry, high 71°, low 53°.
Rest of week
Highs 64–74°; chance of precipitation on Saturday, Sunday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (OAX) (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

Boyer River at Logan

14 mi

Below flood stage

Level: 4.6 ft
Flow: 489 cfs

Reading from Sat 8 PM · NWS gauge page

West Nishnabotna River near Hancock

20 mi

Below flood stage

Level: 3.5 ft
Flow: 585 cfs

Reading from Sat 8 PM · NWS gauge page

Willow Creek near Soldier

21 mi

Below flood stage

Level: 65.5 ft

Reading from Sat 8 PM · NWS gauge page

Soldier River at Pisgah

25 mi

Below flood stage

Level: 3.1 ft
Flow: 147 cfs

Reading from Sat 9 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 13Typical 131

Heating degree days, base 65°F

Comfort

Dry air outside (dew point 50°F).

Open the windows?

Sun, 11:00 AM–8:00 PM

Good stretch to open the windows (air quality forecast not available for part of this window).

Is this typical?

Logan 1 Wnw · official normals 1991–2020 · records 1893–2026

Oct 24, today vs a typical year

Today’s expected high is 15°8° warmer than typical.

Last 7 days vs normal

On average 11°6° warmer than normal (daily mean temperature).

+5°+3°MonOct 19
+5°+3°TueOct 20
+8°+4°WedOct 21
+14°+8°ThuOct 22
+16°+9°FriOct 23
+22°+12°SatOct 24
—SunOct 25

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

Sun & moon

Sun

Daylight: 10 h 43 min; Losing 2 min 35 s a day; shortest Dec 21, 1 h 33 min less
Golden hour: 5:48–6:44 PM; Morning 7:27–8:23 AM
Blue hour: 6:44–6:55 PM; Morning 7:16–7:27 AM; first light 7:16 AM

Stars tonight? Poor

Clouds most of the night (about 83% cover).

Moon

Waxing gibbous

98% lit · growing

Today: sets 5:59 AM · rises 5:25 PM
Full moon: Oct 25
New moon: Nov 9

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

Portsmouth, IA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Boyer River at Logan

West Nishnabotna River near Hancock

Willow Creek near Soldier

Soldier River at Pisgah

For your home

Heating this week

Comfort

Open the windows?

Is this typical?

Oct 24, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Poor

Moon