What is the weather in Walnut right now?

Current weather in Walnut is light rain.

Where can I find the hourly weather forecast for Walnut?

This page shows hourly weather forecast for Walnut, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Walnut updated regularly?

Weather data for Walnut is updated regularly with the latest available observations and forecasts.

Now · 3:41 PM

Walnut Weather & Hourly Forecast

United States · Iowa · 51577

87°F

Light rain

Feels like: 96°F

💧 Humidity 67% 🌡 Pressure 29.91 inHg 💨 Wind 3 mph 👁 Visibility 4.2 mi ☁ Clouds 62% ☀️ UV index 6.1 · High 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Walnut

Today

4:00 PM

Light rain

87° 💧 0.041 in 💨 3 mph H 67%29.91 inHg

7:00 PM

Light rain

79° 💧 0.014 in 💨 7 mph H 88%29.91 inHg

10:00 PM

Light rain

74° 💧 0.386 in 💨 8 mph H 96%29.97 inHg

Tomorrow

1:00 AM

Light thunderstorms

72° 💧 0.179 in 💨 1 mph H 96%30.00 inHg

4:00 AM

Light rain

72° 💧 0.011 in 💨 4 mph H 96%30.00 inHg

7:00 AM

Partly cloudy

70° 💧 0.000 in 💨 2 mph H 99%30.03 inHg

10:00 AM

Mostly cloudy

74° 💧 None 💨 4 mph H 86%30.06 inHg

1:00 PM

Sunny

81° 💧 None 💨 4 mph H 54%30.06 inHg

4:00 PM

Sunny

81° 💧 None 💨 7 mph H 48%30.03 inHg

7:00 PM

Mostly sunny

75° 💧 None 💨 4 mph H 73%30.03 inHg

10:00 PM

Mostly clear night

68° 💧 None 💨 6 mph H 83%30.06 inHg

Thursday

1:00 AM

Mostly clear night

65° 💧 None 💨 6 mph H 81%30.06 inHg

4:00 AM

Clear night

61° 💧 None 💨 3 mph H 89%30.06 inHg

7:00 AM

Sunny

58° 💧 None 💨 3 mph H 93%30.06 inHg

10:00 AM

Sunny

70° 💧 None 💨 3 mph H 73%30.09 inHg

1:00 PM

Sunny

76° 💧 None 💨 5 mph H 51%30.06 inHg

Today

4:00 PM

Light rain

87° 💧 0.014 in 💨 3 mph H 67%29.91 inHg

5:00 PM

Light thunderstorms

84° 💧 0.021 in 💨 7 mph H 74%29.91 inHg

6:00 PM

Light rain

82° 💧 0.006 in 💨 5 mph H 81%29.94 inHg

7:00 PM

Light rain

79° 💧 0.010 in 💨 7 mph H 88%29.91 inHg

8:00 PM

Partly cloudy night

77° 💧 0.000 in 💨 2 mph H 92%29.91 inHg

9:00 PM

Light rain

76° 💧 0.005 in 💨 8 mph H 94%29.94 inHg

10:00 PM

Light rain

74° 💧 0.029 in 💨 8 mph H 96%29.97 inHg

11:00 PM

Thunderstorms

74° 💧 0.176 in 💨 7 mph H 95%30.03 inHg

Tomorrow

12:00 AM

Thunderstorms

73° 💧 0.181 in 💨 6 mph H 96%29.97 inHg

1:00 AM

Light thunderstorms

72° 💧 0.018 in 💨 1 mph H 96%30.00 inHg

2:00 AM

Thunderstorms

72° 💧 0.145 in 💨 0 mph H 98%29.97 inHg

3:00 AM

Light rain

71° 💧 0.015 in 💨 5 mph H 98%30.00 inHg

4:00 AM

Light rain

72° 💧 0.006 in 💨 4 mph H 96%30.00 inHg

5:00 AM

Light rain

71° 💧 0.004 in 💨 1 mph H 97%30.00 inHg

6:00 AM

Partly cloudy night

70° 💧 0.000 in 💨 1 mph H 98%30.03 inHg

7:00 AM

Partly cloudy

70° 💧 0.000 in 💨 2 mph H 99%30.03 inHg

8:00 AM

Mostly cloudy

71° 💧 None 💨 4 mph H 98%30.03 inHg

9:00 AM

Partly cloudy

73° 💧 None 💨 6 mph H 95%30.06 inHg

10:00 AM

Mostly cloudy

74° 💧 None 💨 4 mph H 86%30.06 inHg

11:00 AM

Partly cloudy

76° 💧 None 💨 3 mph H 80%30.06 inHg

12:00 PM

Sunny

79° 💧 None 💨 3 mph H 66%30.06 inHg

1:00 PM

Sunny

81° 💧 None 💨 4 mph H 54%30.06 inHg

2:00 PM

Sunny

82° 💧 None 💨 6 mph H 48%30.03 inHg

3:00 PM

Sunny

82° 💧 None 💨 7 mph H 46%30.03 inHg

4:00 PM

Sunny

81° 💧 None 💨 7 mph H 48%30.03 inHg

5:00 PM

Sunny

80° 💧 None 💨 7 mph H 52%30.00 inHg

6:00 PM

Sunny

79° 💧 None 💨 6 mph H 62%30.00 inHg

7:00 PM

Mostly sunny

75° 💧 None 💨 4 mph H 73%30.03 inHg

8:00 PM

Clear night

71° 💧 None 💨 4 mph H 79%30.03 inHg

9:00 PM

Mostly clear night

69° 💧 None 💨 5 mph H 82%30.03 inHg

10:00 PM

Mostly clear night

68° 💧 None 💨 6 mph H 83%30.06 inHg

11:00 PM

Partly cloudy night

67° 💧 None 💨 7 mph H 79%30.06 inHg

Thursday

12:00 AM

Partly cloudy night

67° 💧 None 💨 7 mph H 77%30.06 inHg

1:00 AM

Mostly clear night

65° 💧 None 💨 6 mph H 81%30.06 inHg

2:00 AM

Mostly clear night

64° 💧 None 💨 5 mph H 84%30.06 inHg

3:00 AM

Clear night

62° 💧 None 💨 4 mph H 88%30.06 inHg

4:00 AM

Clear night

61° 💧 None 💨 3 mph H 89%30.06 inHg

5:00 AM

Clear night

60° 💧 None 💨 3 mph H 91%30.06 inHg

6:00 AM

Clear night

59° 💧 None 💨 2 mph H 92%30.06 inHg

7:00 AM

Sunny

58° 💧 None 💨 3 mph H 93%30.06 inHg

8:00 AM

Sunny

61° 💧 None 💨 3 mph H 90%30.09 inHg

9:00 AM

Sunny

66° 💧 None 💨 2 mph H 84%30.09 inHg

10:00 AM

Sunny

70° 💧 None 💨 3 mph H 73%30.09 inHg

11:00 AM

Sunny

73° 💧 None 💨 5 mph H 63%30.09 inHg

12:00 PM

Sunny

75° 💧 None 💨 5 mph H 53%30.06 inHg

1:00 PM

Sunny

76° 💧 None 💨 5 mph H 51%30.06 inHg

2:00 PM

Sunny

77° 💧 None 💨 4 mph H 48%30.03 inHg

3:00 PM

Sunny

77° 💧 None 💨 5 mph H 48%30.00 inHg

4:00 PM

Sunny

77° 💧 None 💨 4 mph H 49%30.00 inHg

5:00 PM

Sunny

77° 💧 None 💨 5 mph H 51%29.97 inHg

6:00 PM

Sunny

76° 💧 None 💨 4 mph H 58%29.97 inHg

7:00 PM

Sunny

73° 💧 None 💨 3 mph H 72%29.94 inHg

8:00 PM

Clear night

69° 💧 None 💨 4 mph H 72%29.94 inHg

9:00 PM

Clear night

67° 💧 None 💨 4 mph H 75%29.94 inHg

10:00 PM

Clear night

66° 💧 None 💨 5 mph H 76%29.97 inHg

11:00 PM

Clear night

65° 💧 None 💨 7 mph H 74%29.97 inHg

Friday

12:00 AM

Clear night

65° 💧 None 💨 8 mph H 71%29.94 inHg

1:00 AM

Clear night

64° 💧 None 💨 9 mph H 71%29.94 inHg

2:00 AM

Clear night

64° 💧 None 💨 9 mph H 75%29.94 inHg

3:00 AM

Clear night

64° 💧 None 💨 10 mph H 77%29.91 inHg

4:00 AM

Clear night

64° 💧 None 💨 10 mph H 77%29.91 inHg

5:00 AM

Clear night

64° 💧 None 💨 10 mph H 79%29.91 inHg

6:00 AM

Clear night

64° 💧 None 💨 11 mph H 82%29.91 inHg

7:00 AM

Sunny

63° 💧 None 💨 11 mph H 84%29.91 inHg

10:00 AM

Mostly sunny

72° 💧 None 💨 12 mph H 82%29.85 inHg

1:00 PM

Mostly sunny

80° 💧 None 💨 15 mph H 72%29.80 inHg

4:00 PM

Mostly cloudy

84° 💧 None 💨 16 mph H 61%29.71 inHg

7:00 PM

Mostly cloudy

80° 💧 None 💨 13 mph H 71%29.68 inHg

10:00 PM

Mostly clear night

77° 💧 None 💨 15 mph H 80%29.71 inHg

Saturday

1:00 AM

Light thunderstorms

72° 💧 None 💨 13 mph H 93%29.71 inHg

4:00 AM

Light rain

70° 💧 None 💨 6 mph H 96%29.77 inHg

7:00 AM

Overcast

68° 💧 None 💨 4 mph H 98%29.83 inHg

10:00 AM

Partly cloudy

70° 💧 None 💨 9 mph H 91%29.88 inHg

1:00 PM

Mostly sunny

75° 💧 None 💨 9 mph H 71%29.94 inHg

4:00 PM

Mostly sunny

76° 💧 None 💨 7 mph H 64%29.91 inHg

7:00 PM

Sunny

72° 💧 None 💨 7 mph H 67%29.94 inHg

10:00 PM

Clear night

67° 💧 None 💨 8 mph H 71%29.97 inHg

Sunday

1:00 AM

Overcast night

65° 💧 None 💨 8 mph H 73%30.00 inHg

4:00 AM

Overcast night

67° 💧 None 💨 10 mph H 75%29.94 inHg

7:00 AM

Overcast

64° 💧 None 💨 9 mph H 91%29.94 inHg

10:00 AM

Moderate rain

70° 💧 None 💨 11 mph H 94%29.91 inHg

1:00 PM

Overcast

79° 💧 None 💨 17 mph H 77%29.85 inHg

4:00 PM

Sunny

84° 💧 None 💨 16 mph H 72%29.74 inHg

7:00 PM

Mostly sunny

82° 💧 None 💨 18 mph H 73%29.71 inHg

10:00 PM

Overcast night

81° 💧 None 💨 14 mph H 77%29.74 inHg

Monday

1:00 AM

Overcast night

79° 💧 None 💨 13 mph H 80%29.71 inHg

4:00 AM

Overcast night

77° 💧 None 💨 6 mph H 85%29.74 inHg

7:00 AM

Light rain

73° 💧 None 💨 12 mph H 90%29.74 inHg

1:00 PM

Partly cloudy

82° 💧 None 💨 11 mph H 71%29.77 inHg

7:00 PM

Sunny

71° 💧 None 💨 13 mph H 77%29.83 inHg

Tuesday

1:00 AM

Clear night

61° 💧 None 💨 8 mph H 84%30.00 inHg

7:00 AM

Clear night

55° 💧 None 💨 4 mph H 86%30.09 inHg

1:00 PM

Partly cloudy

68° 💧 None 💨 6 mph H 60%30.15 inHg

7:00 PM

Mostly sunny

67° 💧 None 💨 4 mph H 73%30.12 inHg

Wednesday

1:00 AM

Mostly cloudy night

63° 💧 None 💨 5 mph H 81%30.18 inHg

7:00 AM

Mostly cloudy night

62° 💧 None 💨 11 mph H 82%30.18 inHg

1:00 PM

Mostly cloudy

74° 💧 None 💨 13 mph H 66%30.12 inHg

7:00 PM

Mostly sunny

77° 💧 None 💨 12 mph H 76%29.97 inHg

Thursday

1:00 AM

Partly cloudy night

75° 💧 None 💨 15 mph H 89%30.00 inHg

7:00 AM

Moderate rain

70° 💧 None 💨 12 mph H 97%30.00 inHg

1:00 PM

Light thunderstorms

80° 💧 None 💨 4 mph H 81%29.97 inHg

7:00 PM

Mostly cloudy

80° 💧 None 💨 7 mph H 85%29.88 inHg

Friday

1:00 AM

Light rain

71° 💧 None 💨 8 mph H 96%29.97 inHg

7:00 AM

Overcast night

70° 💧 None 💨 3 mph H 98%29.94 inHg

1:00 PM

Light rain

81° 💧 None 💨 7 mph H 75%29.94 inHg

7:00 PM

Mostly sunny

78° 💧 None 💨 8 mph H 87%29.85 inHg

Saturday

1:00 AM

Clear night

76° 💧 None 💨 13 mph H 92%29.80 inHg

7:00 AM

Clear night

75° 💧 None 💨 15 mph H 84%29.71 inHg

1:00 PM

Light rain

82° 💧 None 💨 17 mph H 67%29.71 inHg

7:00 PM

Mostly sunny

71° 💧 None 💨 7 mph H 61%29.83 inHg

Sunday

1:00 AM

Partly cloudy night

64° 💧 None 💨 9 mph H 66%29.94 inHg

7:00 AM

Overcast night

59° 💧 None 💨 10 mph H 68%30.12 inHg

1:00 PM

Mostly cloudy

67° 💧 None 💨 11 mph H 55%30.24 inHg

7:00 PM

Overcast

62° 💧 None 💨 9 mph H 60%30.24 inHg

Monday

1:00 AM

Clear night

51° 💧 None 💨 4 mph H 81%30.39 inHg

7:00 AM

Clear night

46° 💧 None 💨 2 mph H 92%30.42 inHg

1:00 PM

Sunny

63° 💧 None 💨 4 mph H 51%30.42 inHg

7:00 PM

Sunny

60° 💧 None 💨 4 mph H 67%30.30 inHg

Tuesday

1:00 AM

Partly cloudy night

55° 💧 None 💨 11 mph H 68%30.24 inHg

7:00 AM

Mostly cloudy night

51° 💧 None 💨 13 mph H 81%30.21 inHg

1:00 PM

Mostly cloudy

66° 💧 None 💨 15 mph H 60%30.09 inHg

7:00 PM

Sunny

65° 💧 None 💨 13 mph H 60%29.94 inHg

Wednesday

1:00 AM

Clear night

60° 💧 None 💨 14 mph H 80%29.97 inHg

7:00 AM

Clear night

58° 💧 None 💨 9 mph H 87%29.97 inHg

In Walnut and, more broadly, across the state of Iowa: As the afternoon progresses into the evening, skies will remain mostly cloudy with temperatures ranging from the upper 60s to low 80s. Moderate west winds will continue, with sustained speeds around 15 mph and gusts reaching up to 31 mph. Rain is likely during this period, with total accumulation expected to be around 0.16 inches. Residents should be prepared for the possibility of wet conditions and occasional gusty winds as the night settles in. Temperatures will gradually cool but remain relatively mild throughout the evening hours.

15-Day Weather Outlook for Walnut

TomorrowTomorrow

Light thunderstorms 83°/70° 💧 None 💨 9 mph

Thursday, Sep 10Thu Sep 10

Mostly cloudy 78°/59° 💧 None 💨 7 mph

Friday, Sep 11Fri Sep 11

Mostly cloudy 83°/63° 💧 0.667 in 💨 16 mph

Saturday, Sep 12Sat Sep 12

Moderate rain 80°/71° 💧 0.099 in 💨 15 mph

Sunday, Sep 13Sun Sep 13

Partly cloudy 83°/62° 💧 0.056 in 💨 15 mph

Monday, Sep 14Mon Sep 14

Light thunderstorms 81°/65° 💧 1.569 in 💨 16 mph

Tuesday, Sep 15Tue Sep 15

Mostly cloudy 78°/58° 💧 0.314 in 💨 13 mph

Wednesday, Sep 16Wed Sep 16

Heavy rain 69°/60° 💧 0.493 in 💨 10 mph

Thursday, Sep 17Thu Sep 17

Moderate rain 65°/61° 💧 2.193 in 💨 10 mph

Friday, Sep 18Fri Sep 18

Overcast 70°/54° 💧 0.014 in 💨 15 mph

Saturday, Sep 19Sat Sep 19

Sunny 63°/48° 💧 None 💨 8 mph

Sunday, Sep 20Sun Sep 20

Partly cloudy 65°/59° 💧 None 💨 13 mph

Monday, Sep 21Mon Sep 21

Light rain 69°/57° 💧 0.081 in 💨 6 mph

Tuesday, Sep 22Tue Sep 22

Overcast 67°/50° 💧 None 💨 6 mph

Wednesday, Sep 23Wed Sep 23

Sunny 72°/66° 💧 None 💨 8 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Walnut

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Walnut

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 4:00 PM

PM2.5 Fine particles Good 2,6µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 3,1µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Fair 83,8µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 0,4µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Walnut

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 7,1High 🙂Fair

Tomorrow UV 7,4High 🙂Fair

Thursday UV 6,5High 🙂Fair

Friday UV 6,7High 😐Moderate

Saturday UV 5,5Moderate 🙂Fair

Sunday UV 5,0Moderate —Unavailable

Monday UV 8,0Very high —Unavailable

Hourly UV index today

4:00 PMUV 3,1 5:00 PMUV 0,3 6:00 PMUV 0,5 7:00 PMUV 0,1

Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Walnut

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · WALNUT, IOWA

Tonight's Stargazing & Shooting Stars

Fair observing conditions. Best local viewing window: 9:00 PM–10:00 PM.

53/100Best-hour score

BEST TIME TONIGHT 9:00 PM–10:00 PM Astronomical darkness: 9:18 PM–5:19 AM

☁ Cloud cover 33% Real hourly forecast for the best viewing hour.

☾ Moonlight 8% Waning Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 6° high at the best hour.

✦ Estimated visible meteors 0–1/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min8%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

DISCOVER WEATHER NEARBY Weather in other cities

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Forecast data for Walnut were last refreshed today at 3:41 PM. The current forecast period extends through 10/09/2026 at 1:00 PM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.