Observed 2:15 AM CDT at KIKV

Johnston, IA weather

Clear and 61°16°, 18°10° warmer than a typical Oct 24.

Mostly agree

Now 61°16°

Clear

Wind: 5 mph8 km/h; 58–10 mph16 km/h through 2 PM
Dew point: 50°10°; Comfortable
UV index: 0Low; Moderate 11 AM–5 PM · peak 4
Air quality: 52Moderate; Main pollutant: PM2.5 (fine particles)
Pressure: 30.2 inHg1023 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

7°4° warmer than this time yesterday (54°12° then, 61°16° now)

Good hours for

Low 57°14° today at 6 AM
Above 70°21° today by noon
High 77°25° today at 2 PM
Below 70°21° tonight after 7 PM

TonightNear 60°16° · Mostly cloudy
This morningUp to 69°21° by 11 AM · Partly cloudy
This afternoonUp to 77°25° by 2 PM · Partly cloudy
TonightDown to 56°13° by 5 AM · Mostly cloudy
Tomorrow morningUp to 66°19° by 11 AM · Partly cloudy
Tomorrow afternoonUp to 74°23° by 3 PM · Partly cloudy
Tomorrow nightDown to 56°13° by 1 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 2a	Cloudy	61°16° (likely 58°14° to 63°17°)	61°16°	0%	5 mph8 km/h from SSE, gusts 15 mph23 km/h	72%	80%	0
Sat 3a	Cloudy	59°15° (likely 58°14° to 62°17°)	59°15°	0%	7 mph11 km/h from SSE, gusts 14 mph22 km/h	72%	74%	0
Sat 4a	Mostly clear	59°15° (likely 57°14° to 62°17°)	59°15°	0%	7 mph11 km/h from SSE, gusts 14 mph22 km/h	72%	48%	0
Sat 5a	Partly cloudy	58°14° (likely 56°13° to 61°16°)	58°14°	0%	6 mph10 km/h from SSE, gusts 13 mph21 km/h	75%	56%	0
Sat 6a	Cloudy	57°14° (likely 55°13° to 60°16°)	57°14°	0%	7 mph11 km/h from SSE, gusts 12 mph20 km/h	77%	71%	0
Sat 7a	Mostly cloudy	57°14° (likely 55°13° to 60°16°)	57°14°	0%	7 mph11 km/h from SSE, gusts 13 mph20 km/h	77%	55%	0
Sat 8a	Partly sunny	57°14° (likely 54°12° to 60°16°)	57°14°	0%	7 mph11 km/h from SSE, gusts 12 mph20 km/h	77%	38%	0
Sat 9a	Partly sunny	61°16° (likely 57°14° to 61°16°)	61°16°	0%	7 mph11 km/h from SSE, gusts 14 mph22 km/h	69%	35%	1
Sat 10a	Partly sunny	65°18° (likely 61°16° to 65°18°)	65°18°	0%	8 mph13 km/h from S, gusts 17 mph28 km/h	61%	56%	1
Sat 11a	Partly sunny	69°21° (likely 66°19° to 69°21°)	69°21°	0%	9 mph14 km/h from S, gusts 19 mph31 km/h	55%	48%	3
Sat 12p	Sunny	73°23° (likely 70°21° to 73°23°)	73°23°	0%	10 mph16 km/h from S, gusts 19 mph31 km/h	48%	21%	4
Sat 1p	Cloudy	75°24° (likely 72°22° to 75°24°)	75°24°	0%	10 mph16 km/h from S, gusts 18 mph29 km/h	45%	67%	4
Sat 2p	Cloudy	77°25° (likely 74°23° to 77°25°)	77°25°	0%	10 mph16 km/h from S, gusts 18 mph28 km/h	40%	69%	4
Sat 3p	Cloudy	77°25° (likely 75°24° to 78°26°)	77°25°	0%	10 mph16 km/h from S, gusts 17 mph28 km/h	40%	69%	4
Sat 4p	Partly sunny	77°25° (likely 75°24° to 78°26°)	77°25°	0%	9 mph14 km/h from S, gusts 17 mph28 km/h	42%	56%	3
Sat 5p	Partly sunny	75°24° (likely 72°22° to 77°25°)	75°24°	0%	8 mph13 km/h from S, gusts 16 mph25 km/h	45%	70%	1
Sat 6p	Partly cloudy	72°22° (likely 69°21° to 74°23°)	72°22°	0%	7 mph11 km/h from S, gusts 12 mph19 km/h	49%	73%	0
Sat 7p	Partly cloudy	68°20° (likely 66°19° to 70°21°)	68°20°	0%	6 mph10 km/h from S, gusts 11 mph17 km/h	59%	70%	0
Sat 8p	Cloudy	66°19° (likely 64°18° to 67°19°)	66°19°	0%	5 mph8 km/h from S, gusts 10 mph17 km/h	63%	68%	0
Sat 9p	Cloudy	64°18° (likely 63°17° to 66°19°)	64°18°	0%	5 mph8 km/h from S, gusts 9 mph14 km/h	67%	71%	0
Sat 10p	Cloudy	63°17° (likely 62°17° to 65°18°)	63°17°	0%	5 mph8 km/h from S, gusts 8 mph13 km/h	70%	70%	0
Sat 11p	Cloudy	61°16° (likely 61°16° to 64°18°)	61°16°	0%	3 mph5 km/h from SW, gusts 8 mph12 km/h	75%	70%	0
Sun 12a	Cloudy	60°16° (likely 60°16° to 62°17°)	60°16°	0%	3 mph5 km/h from NW, gusts 9 mph14 km/h	75%	75%	0
Sun 1a	Cloudy	59°15° (likely 59°15° to 62°17°)	59°15°	0%	3 mph5 km/h from NW, gusts 10 mph17 km/h	78%	77%	0
Sun 2a	Cloudy	59°15° (likely 57°14° to 61°16°)	59°15°	0%	2 mph3 km/h from NW, gusts 11 mph17 km/h	75%	80%	0
Sun 3a	Cloudy	58°14° (likely 56°13° to 60°16°)	58°14°	0%	2 mph3 km/h from NNW, gusts 10 mph17 km/h	77%	80%	0
Sun 4a	Cloudy	57°14° (likely 54°12° to 58°14°)	57°14°	0%	2 mph3 km/h from NNW, gusts 10 mph16 km/h	83%	80%	0
Sun 5a	Cloudy	56°13° (likely 54°12° to 57°14°)	56°13°	0%	2 mph3 km/h from N, gusts 11 mph17 km/h	83%	75%	0
Sun 6a	Partly cloudy	56°13° (likely 52°11° to 56°13°)	56°13°	0%	1 mph2 km/h from N, gusts 11 mph17 km/h	83%	68%	0
Sun 7a	Partly cloudy	55°13° (likely 51°11° to 55°13°)	55°13°	0%	1 mph2 km/h from NNW, gusts 8 mph13 km/h	86%	66%	0
Sun 8a	Partly sunny	54°12° (likely 51°11° to 56°13°)	54°12°	0%	1 mph2 km/h from NNE, gusts 9 mph15 km/h	90%	64%	0
Sun 9a	Mostly cloudy	57°14° (likely 54°12° to 59°15°)	57°14°	0%	2 mph3 km/h from SSE, gusts 11 mph17 km/h	80%	43%	0
Sun 10a	Mostly cloudy	62°17° (likely 57°14° to 63°17°)	62°17°	0%	2 mph3 km/h from S, gusts 10 mph15 km/h	70%	44%	1
Sun 11a	Cloudy	66°19° (likely 59°15° to 66°19°)	66°19°	0%	2 mph3 km/h from S, gusts 7 mph11 km/h	63%	56%	2
Sun 12p	Partly sunny	69°21° (likely 61°16° to 69°21°)	69°21°	0%	2 mph3 km/h from S, gusts 7 mph11 km/h	57%	36%	3
Sun 1p	Partly sunny	71°22° (likely 64°18° to 72°22°)	71°22°	0%	2 mph3 km/h from S, gusts 6 mph10 km/h	55%	28%	3
Sun 2p	Partly sunny	73°23° (likely 66°19° to 74°23°)	73°23°	0%	2 mph3 km/h from S, gusts 5 mph9 km/h	51%	67%	3
Sun 3p	Mostly cloudy	74°23° (likely 67°19° to 75°24°)	74°23°	0%	2 mph3 km/h from S, gusts 6 mph10 km/h	50%	65%	3
Sun 4p	Cloudy	74°23° (likely 67°19° to 76°24°)	74°23°	0%	2 mph3 km/h from SSE, gusts 8 mph13 km/h	50%	67%	3
Sun 5p	Partly sunny	73°23° (likely 65°18° to 75°24°)	73°23°	0%	2 mph3 km/h from ESE, gusts 11 mph18 km/h	49%	74%	1
Sun 6p	Cloudy	71°22° (likely 62°17° to 73°23°)	71°22°	0%	3 mph5 km/h from E, gusts 11 mph17 km/h	55%	78%	0
Sun 7p	Cloudy	68°20° (likely 60°16° to 69°21°)	68°20°	0%	3 mph5 km/h from E, gusts 10 mph17 km/h	59%	86%	0
Sun 8p	Cloudy	63°17° (likely 61°16° to 69°21°)	63°17°	0%	3 mph5 km/h from E, gusts 7 mph12 km/h	70%	88%	0
Sun 9p	Cloudy	61°16° (likely 60°16° to 67°19°)	61°16°	0%	3 mph5 km/h from E, gusts 8 mph13 km/h	75%	92%	0
Sun 10p	Cloudy	60°16° (likely 58°14° to 66°19°)	60°16°	0%	3 mph5 km/h from ENE, gusts 9 mph15 km/h	75%	94%	0
Sun 11p	Cloudy	59°15° (likely 56°13° to 66°19°)	59°15°	0%	3 mph5 km/h from ENE, gusts 9 mph14 km/h	75%	95%	0
Mon 12a	Cloudy	57°14° (likely 55°13° to 66°19°)	57°14°	0%	3 mph5 km/h from ENE, gusts 8 mph13 km/h	80%	97%	0
Mon 1a	Cloudy	56°13° (likely 54°12° to 65°18°)	56°13°	0%	3 mph5 km/h from NE, gusts 7 mph11 km/h	80%	97%	0

Days ahead

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

Today, Oct 24. Cloudy. High 77°25°, low 57°14°. Typical 59°15° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 77°25°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 66°19°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 56°13°
  Dry
Official NWS forecast
Today: Mostly sunny. High near 77, with temperatures falling to around 75 in the afternoon. South wind 7 to 10 mph.
Tonight: Mostly cloudy, with a low around 57. South southeast wind around 7 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–78°26°
Low, likely
54°12°–59°15°
Typical high / low
59°15° / 40°4°
Wind
12 mph19 km/h, gusts 22 mph35 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 74°23°, low 52°11°. Typical 59°15° / 39°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly cloudy, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Mostly cloudy, 74°23°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 63°17°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 56°13°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 74. Southeast wind around 2 mph.
Night: Mostly cloudy, with a low around 52. East northeast wind around 5 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
69°21°–76°24°
Low, likely
51°11°–55°13°
Typical high / low
59°15° / 39°4°
Wind
8 mph13 km/h, gusts 18 mph29 km/h
UV peak
3
Monday, Oct 26. Mostly cloudy. High 69°21°, low 53°12°. Typical 58°14° / 39°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 60°16°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly cloudy, with a high near 69.
Night: Mostly cloudy, with a low around 53.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
69°21°–74°23°
Low, likely
50°10°–57°14°
Typical high / low
58°14° / 39°4°
Wind
11 mph17 km/h, gusts 18 mph29 km/h
UV peak
4
Tuesday, Oct 27. Mostly cloudy. High 69°21°, low 54°12°. Typical 58°14° / 38°3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 61°16°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 59°15°
  30% chance · 0.04 in1 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly cloudy, with a high near 69.
Night: A chance of rain showers after 7pm. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
68°20°–74°23°
Low, likely
54°12°–62°17°
Typical high / low
58°14° / 38°3°
Wind
13 mph21 km/h, gusts 28 mph45 km/h
UV peak
2
Wednesday, Oct 28. Showers. High 71°22°, low 49°9°. Typical 57°14° / 38°3°. Rain 0.06 in1.5 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 59°15°
  30% chance
2. Afternoon
  noon–6 PM
  Sunny, 72°22°
  20% chance · 0.01 in0.3 mm
3. Evening
  6 PM–midnight
  Clear, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Drizzle, 58°15°
  Dry
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 49.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
69°21°–74°23°
Low, likely
49°9°–61°16°
Typical high / low
57°14° / 38°3°
Wind
14 mph22 km/h, gusts 37 mph59 km/h
UV peak
4
Thursday, Oct 29. Showers. High 68°20°, low 50°10°. Typical 57°14° / 38°3°. Rain 0.08 in2 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 58°15°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 71°22°
  Dry
3. Evening
  6 PM–midnight
  Clear, 63°17°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 59°15°
  20% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers. Mostly sunny, with a high near 68.
Night: A chance of rain showers. Partly cloudy, with a low around 50. Chance of precipitation is 30%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
68°20°–75°24°
Low, likely
50°10°–60°16°
Typical high / low
57°14° / 38°3°
Wind
14 mph23 km/h, gusts 37 mph59 km/h
UV peak
2
Friday, Oct 30. Showers. High 67°19°, low 59°15°. Typical 56°13° / 37°3°. Rain 0.13 in3.3 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 60°16°
  30% chance · 0.03 in0.7 mm
2. Afternoon
  noon–6 PM
  Mostly sunny, 72°22°
  30% chance · 0.03 in0.7 mm
3. Evening
  6 PM–midnight
  Showers, 68°20°
  30% chance · 0.07 in1.8 mm
4. Overnight
  midnight–6 AM
  Cloudy, 63°17°
  40% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain showers. Partly sunny, with a high near 67.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
67°19°–77°25°
Low, likely
52°11°–66°19°
Typical high / low
56°13° / 37°3°
Wind
17 mph27 km/h, gusts 29 mph47 km/h
UV peak
1
Saturday, Oct 31. Drizzle. High 69°21°, low 62°17°. Typical 56°13° / 37°3°. Rain 0.15 in3.8 mm, 50% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 64°18°
  40% chance
2. Afternoon
  noon–6 PM
  Drizzle, 69°20°
  40% chance · 0.01 in0.3 mm
3. Evening
  6 PM–midnight
  Drizzle, 66°19°
  40% chance · 0.08 in2 mm
4. Overnight
  midnight–6 AM
  Drizzle, 61°16°
  40% chance · 0.06 in1.5 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
62°17°–78°26°
Low, likely
58°14°–70°21°
Typical high / low
56°13° / 37°3°
Wind
17 mph27 km/h, gusts 32 mph51 km/h
Sunday, Nov 1. Drizzle. High 66°19°, low 52°11°. Typical 55°13° / 36°2°. Rain 0.45 in11 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 60°15°
  40% chance · 0.25 in6.4 mm
2. Afternoon
  noon–6 PM
  Drizzle, 65°18°
  30% chance · 0.09 in2.2 mm
3. Evening
  6 PM–midnight
  Drizzle, 58°15°
  20% chance · 0.04 in1 mm
4. Overnight
  midnight–6 AM
  Drizzle, 48°9°
  20% chance · 0.03 in0.6 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°–71°22°
Low, likely
51°11°–54°12°
Typical high / low
55°13° / 36°2°
Wind
20 mph32 km/h, gusts 35 mph56 km/h
UV peak
3
Monday, Nov 2. Showers. High 57°14°, low 45°7°. Typical 55°13° / 36°2°. Rain 0.43 in11 mm, 20% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 53°12°
  Dry
3. Evening
  6 PM–midnight
  Rain, 46°8°
  20% chance · 0.17 in4.4 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
54°12°–60°16°
Low, likely
44°7°–47°8°
Typical high / low
55°13° / 36°2°
Wind
20 mph33 km/h, gusts 38 mph61 km/h

10 days15 days30 days

The outlook

Today
Dry, high 77°, low 57°.
Tomorrow
Dry, high 74°, low 52°, cooling off.
Monday
Dry, high 69°, low 53°, cooling off.
Rest of week
Highs 57–71°; chance of precipitation on Friday, 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

Beaver Creek near Grimes

0.6 mi

Below flood stage

Level: 5.7 ft
Flow: 591 cfs

Reading from Sat 12:15 AM · NWS gauge page

Des Moines River at Saylorville Reservoir

2.0 mi

Below flood stage

Level: 838 ft

Reading from Sat 12 AM · NWS gauge page

Des Moines River at Saylorville Tail

3.0 mi

Level: 6.1 ft
Flow: 3,740 cfs

Reading from Sat 12:46 AM · NWS gauge page

North Walnut Creek at Urbandale 92nd Dr

4.3 mi

Level: 3.2 ft

Reading from Fri 9:36 PM · 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 7Typical 119

Heating degree days, base 65°F

Comfort

Dry air outside (dew point 50°F).

Open the windows?

Today, 9:00 AM–12:00 AM

Good stretch to open the windows.

Is this typical?

Des Moines International Airport · official normals 1991–2020 · records 1878–2026

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).

+3°+1°SunOct 18
+4°+2°MonOct 19
+7°+4°TueOct 20
+13°+7°WedOct 21
+16°+9°ThuOct 22
—FriOct 23
—SatOct 24

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

Sun & moon

Sun

Daylight: 10 h 42 min; Losing 2 min 35 s a day; shortest Dec 21, 1 h 33 min less
Golden hour: 5:41–6:37 PM; Morning 7:20–8:16 AM
Blue hour: 6:37–6:48 PM; Morning 7:09–7:20 AM; first light 7:09 AM

Stars tonight? Poor

Clouds most of the night (about 64% cover).

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:51 AM · rises 5:18 PM
Full moon: Oct 25
New moon: Nov 9

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