Observed 10:50 AM CDT at KLWD

Sun Valley Lake, IA weather

Sunny and 64°18°, 16°9° warmer than a typical Oct 24.

Mostly agree

Now 64°18°

Sunny

Wind: 10 mph17 km/hgusts 16 mph26 km/h; From the south. 610–10 mph17 km/h through 11 PM
Dew point: 48°9°; Comfortable
UV index: 2Low; Moderate 12–4 PM · peak 4
Pressure: 30.28 inHg1025 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

About the same as this time yesterday (61°16° then, 61°16° now)

Good hours for

High 74°23° today at 3 PM
Low 54°12° tomorrow at 8 AM
Above 60°16° tomorrow by 10 AM

This afternoonUp to 74°23° by 3 PM · Partly cloudy
TonightDown to 56°13° by 5 AM · Mostly cloudy
Tomorrow morningUp to 67°19° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 76°24° by 3 PM · Mostly cloudy
Tomorrow nightDown to 55°13° by 5 AM · Mostly cloudy
Monday morningUp to 60°16° by 10 AM · 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 11a	Partly sunny	65°18° (likely 65°18° to 68°20°)	65°18°	0%	10 mph16 km/h from S, gusts 20 mph33 km/h	60%	36%	2
Sat 12p	Sunny	69°21° (likely 68°20° to 71°22°)	69°21°	0%	10 mph16 km/h from S, gusts 20 mph32 km/h	55%	7%	3
Sat 1p	Sunny	71°22° (likely 71°22° to 74°23°)	71°22°	0%	10 mph16 km/h from S, gusts 19 mph30 km/h	51%	20%	4
Sat 2p	Sunny	72°22° (likely 72°22° to 76°24°)	72°22°	0%	10 mph16 km/h from S, gusts 19 mph30 km/h	51%	7%	4
Sat 3p	Partly sunny	74°23° (likely 73°23° to 77°25°)	74°23°	0%	10 mph16 km/h from S, gusts 18 mph30 km/h	48%	26%	3
Sat 4p	Partly sunny	73°23° (likely 73°23° to 77°25°)	73°23°	0%	10 mph16 km/h from S, gusts 19 mph30 km/h	49%	48%	2
Sat 5p	Partly sunny	73°23° (likely 72°22° to 76°24°)	73°23°	0%	8 mph13 km/h from S, gusts 18 mph29 km/h	48%	66%	1
Sat 6p	Partly cloudy	72°22° (likely 69°21° to 74°23°)	72°22°	0%	7 mph11 km/h from S, gusts 11 mph18 km/h	49%	66%	0
Sat 7p	Cloudy	68°20° (likely 65°18° to 69°21°)	68°20°	0%	6 mph10 km/h from S, gusts 10 mph16 km/h	57%	66%	0
Sat 8p	Cloudy	65°18° (likely 63°17° to 66°19°)	65°18°	0%	6 mph10 km/h from S, gusts 10 mph17 km/h	60%	76%	0
Sat 9p	Cloudy	64°18° (likely 62°17° to 65°18°)	64°18°	0%	6 mph10 km/h from S, gusts 10 mph16 km/h	65%	53%	0
Sat 10p	Cloudy	63°17° (likely 61°16° to 63°17°)	63°17°	0%	6 mph10 km/h from S, gusts 12 mph19 km/h	67%	66%	0
Sat 11p	Cloudy	61°16° (likely 60°16° to 62°17°)	61°16°	0%	6 mph10 km/h from S, gusts 13 mph21 km/h	70%	79%	0
Sun 12a	Cloudy	61°16° (likely 59°15° to 61°16°)	61°16°	0%	5 mph8 km/h from SSW, gusts 13 mph21 km/h	70%	80%	0
Sun 1a	Cloudy	60°16° (likely 58°14° to 60°16°)	60°16°	0%	5 mph8 km/h from SSW, gusts 13 mph21 km/h	69%	80%	0
Sun 2a	Cloudy	59°15° (likely 57°14° to 59°15°)	59°15°	0%	5 mph8 km/h from SSE, gusts 13 mph21 km/h	72%	78%	0
Sun 3a	Cloudy	58°14° (likely 57°14° to 58°14°)	58°14°	0%	5 mph8 km/h from SSW, gusts 12 mph19 km/h	75%	76%	0
Sun 4a	Cloudy	57°14° (likely 54°12° to 57°14°)	57°14°	0%	5 mph8 km/h from NE, gusts 5 mph8 km/h	75%	74%	0
Sun 5a	Partly cloudy	56°13° (likely 53°12° to 56°13°)	56°13°	0%	5 mph8 km/h from NNE, gusts 6 mph10 km/h	77%	74%	0
Sun 6a	Cloudy	56°13° (likely 52°11° to 56°13°)	56°13°	0%	3 mph5 km/h from NNE, gusts 6 mph9 km/h	74%	74%	0
Sun 7a	Cloudy	55°13° (likely 52°11° to 55°13°)	55°13°	0%	3 mph5 km/h from NNE, gusts 8 mph13 km/h	80%	74%	0
Sun 8a	Mostly cloudy	54°12° (likely 52°11° to 56°13°)	54°12°	0%	3 mph5 km/h from E, gusts 7 mph11 km/h	83%	75%	0
Sun 9a	Cloudy	58°14° (likely 54°12° to 59°15°)	58°14°	0%	3 mph5 km/h from S, gusts 7 mph11 km/h	75%	76%	0
Sun 10a	Cloudy	63°17° (likely 57°14° to 64°18°)	63°17°	0%	3 mph5 km/h from S, gusts 5 mph8 km/h	67%	77%	1
Sun 11a	Cloudy	67°19° (likely 60°16° to 69°21°)	67°19°	0%	3 mph5 km/h from S, gusts 5 mph8 km/h	61%	78%	3
Sun 12p	Cloudy	70°21° (likely 64°18° to 72°22°)	70°21°	0%	3 mph5 km/h from S, gusts 8 mph13 km/h	55%	77%	3
Sun 1p	Cloudy	73°23° (likely 67°19° to 75°24°)	73°23°	0%	3 mph5 km/h from SSW, gusts 7 mph12 km/h	51%	79%	4
Sun 2p	Partly sunny	75°24° (likely 70°21° to 77°25°)	75°24°	0%	3 mph5 km/h from S, gusts 9 mph14 km/h	46%	79%	4
Sun 3p	Cloudy	76°24° (likely 73°23° to 78°26°)	76°24°	0%	3 mph5 km/h from S, gusts 10 mph16 km/h	45%	78%	4
Sun 4p	Cloudy	76°24° (likely 73°23° to 77°25°)	76°24°	0%	3 mph5 km/h from S, gusts 10 mph16 km/h	45%	77%	3
Sun 5p	Cloudy	75°24° (likely 72°22° to 77°25°)	75°24°	0%	3 mph5 km/h from S, gusts 9 mph14 km/h	46%	79%	1
Sun 6p	Cloudy	73°23° (likely 68°20° to 74°23°)	73°23°	0%	2 mph3 km/h from S, gusts 6 mph10 km/h	48%	79%	0
Sun 7p	Cloudy	69°21° (likely 65°18° to 69°21°)	69°21°	0%	3 mph5 km/h from SSE, gusts 6 mph10 km/h	57%	80%	0
Sun 8p	Cloudy	64°18° (likely 63°17° to 66°19°)	64°18°	0%	3 mph5 km/h from SSE, gusts 8 mph13 km/h	67%	82%	0
Sun 9p	Cloudy	62°17° (likely 61°16° to 64°18°)	62°17°	0%	3 mph5 km/h from SSE, gusts 8 mph12 km/h	72%	82%	0
Sun 10p	Cloudy	61°16° (likely 59°15° to 63°17°)	61°16°	0%	3 mph5 km/h from SSE, gusts 11 mph17 km/h	72%	81%	0
Sun 11p	Cloudy	60°16° (likely 58°14° to 63°17°)	60°16°	0%	3 mph5 km/h from SSE, gusts 11 mph18 km/h	72%	82%	0
Mon 12a	Cloudy	59°15° (likely 57°14° to 62°17°)	59°15°	0%	3 mph5 km/h from SSE, gusts 11 mph17 km/h	72%	81%	0
Mon 1a	Cloudy	58°14° (likely 56°13° to 60°16°)	58°14°	0%	3 mph5 km/h from SSE, gusts 10 mph16 km/h	77%	81%	0
Mon 2a	Cloudy	57°14° (likely 56°13° to 59°15°)	57°14°	0%	3 mph5 km/h from SSE, gusts 10 mph16 km/h	80%	82%	0
Mon 3a	Cloudy	56°13° (likely 55°13° to 59°15°)	56°13°	0%	3 mph5 km/h from SSE, gusts 8 mph13 km/h	80%	83%	0
Mon 4a	Cloudy	56°13° (likely 54°12° to 58°14°)	56°13°	0%	3 mph5 km/h from SE, gusts 8 mph13 km/h	80%	83%	0
Mon 5a	Cloudy	55°13° (likely 53°12° to 57°14°)	55°13°	0%	3 mph5 km/h from SE, gusts 7 mph12 km/h	80%	90%	0
Mon 6a	Cloudy	54°12° (likely 52°11° to 56°13°)	54°12°	0%	3 mph5 km/h from ESE, gusts 8 mph13 km/h	83%	95%	0
Mon 7a	Cloudy	54°12° (likely 52°11° to 56°13°)	54°12°	0%	3 mph5 km/h from ESE, gusts 8 mph12 km/h	83%	97%	0
Mon 8a	Cloudy	55°13° (likely 51°11° to 58°14°)	55°13°	0%	3 mph5 km/h from ESE, gusts 6 mph9 km/h	83%	96%	0
Mon 9a	Cloudy	57°14° (likely 54°12° to 60°16°)	57°14°	0%	3 mph5 km/h from SE, gusts 8 mph13 km/h	80%	98%	0
Mon 10a	Cloudy	60°16° (likely 57°14° to 63°17°)	60°16°	0%	3 mph5 km/h from SE, gusts 9 mph15 km/h	75%	97%	1

Days ahead

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

Today, Oct 24. Cloudy. High 76°24°, low 54°12°. Typical 60°16° / 37°3°. Dry. Mostly agree.
1. Afternoon
  noon–6 PM
  Partly sunny, 74°23°
  Dry
2. Evening
  6 PM–midnight
  Cloudy, 65°18°
  Dry
3. Overnight
  midnight–6 AM
  Cloudy, 56°13°
  Dry
Official NWS forecast
Today: Mostly sunny. High near 76, with temperatures falling to around 73 in the afternoon. South wind around 10 mph, with gusts as high as 18 mph.
Tonight: Partly cloudy. Low around 54, with temperatures rising to around 56 overnight. South wind around 7 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–77°25°
Low, likely
54°12°–56°13°
Typical high / low
60°16° / 37°3°
Wind
13 mph22 km/h, gusts 25 mph40 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 76°24°, low 54°12°. Typical 60°16° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 76°24°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 55°13°
  Dry
Official NWS forecast
Day: Partly sunny, with a high near 76. South southeast wind around 3 mph.
Night: Mostly cloudy, with a low around 54. South southeast wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–78°26°
Low, likely
52°11°–55°13°
Typical high / low
60°16° / 36°2°
Wind
9 mph14 km/h, gusts 19 mph31 km/h
UV peak
4
Monday, Oct 26. Mostly cloudy. High 72°22°, low 54°12°. Typical 59°15° / 36°2°. Dry. Mostly agree. Best day outdoors this week.
1. Morning
  6 AM–noon
  Cloudy, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 65°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 60°15°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 72. Southeast wind 3 to 7 mph.
Night: Mostly cloudy, with a low around 54.
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 72°22°).
High, likely
72°22°–75°24°
Low, likely
52°11°–56°13°
Typical high / low
59°15° / 36°2°
Wind
11 mph18 km/h, gusts 22 mph35 km/h
UV peak
4
Tuesday, Oct 27. Drizzle. High 70°21°, low 54°12°. Typical 59°15° / 36°2°. Rain 0.05 in1.3 mm, 10% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 59°15°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 69°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 63°17°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 60°15°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly cloudy, with a high near 70.
Night: A chance of rain showers after 7pm. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–72°22°
Low, likely
54°12°–58°14°
Typical high / low
59°15° / 36°2°
Wind
16 mph26 km/h, gusts 26 mph42 km/h
UV peak
3
Wednesday, Oct 28. Showers. High 71°22°, low 50°10°. Typical 58°14° / 35°2°. Rain 0.06 in1.5 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 59°15°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Clear, 67°20°
  Dry
4. Overnight
  midnight–6 AM
  Drizzle, 59°15°
  20% chance · 0.1 in2.5 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain showers before 1pm. Partly sunny, with a high near 71. Chance of precipitation is 30%.
Night: A slight chance of rain showers after 1am. Partly cloudy, with a low around 50.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
71°22°–74°23°
Low, likely
50°10°–61°16°
Typical high / low
58°14° / 35°2°
Wind
17 mph27 km/h, gusts 36 mph58 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 70°21°, low 52°11°. Typical 58°14° / 35°2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 60°15°
  20% chance · 0.03 in0.8 mm
2. Afternoon
  noon–6 PM
  Sunny, 71°22°
  Dry
3. Evening
  6 PM–midnight
  Showers, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 61°16°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers before 7am. Mostly sunny, with a high near 70.
Night: A chance of rain showers after 7pm. Partly cloudy, with a low around 52. Chance of precipitation is 30%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
68°20°–75°24°
Low, likely
52°11°–61°16°
Typical high / low
58°14° / 35°2°
Wind
14 mph23 km/h, gusts 34 mph55 km/h
UV peak
3
Friday, Oct 30. Showers. High 68°20°, low 50°10°. Typical 57°14° / 34°1°. Rain 0.12 in3 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 62°17°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 74°23°
  20% chance
3. Evening
  6 PM–midnight
  Cloudy, 68°20°
  30% chance
4. Overnight
  midnight–6 AM
  Cloudy, 62°17°
  40% chance · 0.03 in0.8 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 68. Chance of precipitation is 40%.
Night: A chance of rain showers. Mostly cloudy, with a low around 50.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
68°20°–77°25°
Low, likely
50°10°–63°17°
Typical high / low
57°14° / 34°1°
Wind
16 mph26 km/h, gusts 29 mph46 km/h
UV peak
2
Saturday, Oct 31. Drizzle. High 67°19°, low 60°16°. Typical 57°14° / 34°1°. Rain 0.26 in6.6 mm, 50% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 62°17°
  40% chance
2. Afternoon
  noon–6 PM
  Rain, 66°19°
  50% chance · 0.09 in2.3 mm
3. Evening
  6 PM–midnight
  Rain, 63°17°
  50% chance · 0.05 in1.2 mm
4. Overnight
  midnight–6 AM
  Drizzle, 62°16°
  50% chance · 0.06 in1.6 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°–77°25°
Low, likely
56°13°–66°19°
Typical high / low
57°14° / 34°1°
Wind
17 mph28 km/h, gusts 34 mph54 km/h
UV peak
1
Sunday, Nov 1. Drizzle. High 65°18°, low 54°12°. Typical 56°13° / 34°1°. Rain 0.33 in8.4 mm, 50% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 60°16°
  40% chance · 0.21 in5.4 mm
2. Afternoon
  noon–6 PM
  Drizzle, 65°18°
  30% chance · 0.06 in1.5 mm
3. Evening
  6 PM–midnight
  Drizzle, 59°15°
  30% chance · 0.02 in0.5 mm
4. Overnight
  midnight–6 AM
  Showers, 54°12°
  30% chance · 0.3 in7.6 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
59°15°–70°21°
Low, likely
49°9°–62°17°
Typical high / low
56°13° / 34°1°
Wind
23 mph37 km/h, gusts 32 mph52 km/h
UV peak
2
Monday, Nov 2. Showers. High 60°16°, low 52°11°. Typical 56°13° / 33°1°. Rain 0.62 in16 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 52°11°
  30% chance · 0.23 in5.9 mm
2. Afternoon
  noon–6 PM
  Sunny, 56°13°
  30% chance · 0.07 in1.7 mm
3. Evening
  6 PM–midnight
  Clear, 58°14°
  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
56°13°–68°20°
Low, likely
45°7°–64°18°
Typical high / low
56°13° / 33°1°
Wind
31 mph49 km/h, gusts 52 mph83 km/h
UV peak
4

10 days15 days30 days

The outlook

Today
Dry, high 76°, low 54°.
Tomorrow
Dry, high 76°, low 54°.
Monday
Dry, high 72°, low 54°, cooling off.
Rest of week
Highs 60–71°; 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

Thompson River at Davis City

20 mi

Below flood stage

Level: 1.6 ft
Flow: 211 cfs

Reading from Sat 9 AM · NWS gauge page

For your home

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

Heating this week

About 94% less heating than a typical week.

This week 8Typical 125

Heating degree days, base 65°F

Comfort

Dry air outside (dew point 48°F).

Open the windows?

Today, 12:00 PM–1:00 AM

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

Is this typical?

Mount Ayr · official normals 1991–2020 · records 1893–2026

Oct 24, today vs a typical year

Today’s expected high is 16°9° warmer than typical.

Last 7 days vs normal

On average 2°1° warmer than normal (daily mean temperature).

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

Sun Valley Lake weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 45 min; Losing 2 min 35 s a day; shortest Dec 21, 1 h 30 min less
Golden hour: 5:44–6:39 PM; Morning 7:20–8:15 AM
Blue hour: 6:39–6:50 PM; Morning 7:09–7:20 AM; first light 7:09 AM

Stars tonight? Poor

Clouds most of the night (about 73% cover).

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:52 AM · rises 5:20 PM
Full moon: Oct 25
New moon: Nov 9

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