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

Now · 9:41 AM

Grannis Weather & Hourly Forecast

United States · Arkansas · 71944

83°F

Sunny

Feels like: 87°F

💧 Humidity 60% 🌡 Pressure 30.03 inHg 💨 Wind 5 mph 👁 Visibility 22.7 mi ☁ Clouds 10% ☀️ UV index 1.0 · Low 🌅 Sunrise 7:04 AM 🌇 Sunset 7:15 PM

Hourly Forecast for Grannis

Today

10:00 AM

Sunny

83° 💧 0.000 in 💨 5 mph H 60%30.03 inHg

1:00 PM

Strong thunderstorm

90° 💧 0.002 in 💨 6 mph H 46%30.03 inHg

4:00 PM

Light rain

89° 💧 0.114 in 💨 6 mph H 50%29.97 inHg

7:00 PM

Mostly sunny

81° 💧 0.000 in 💨 3 mph H 76%29.97 inHg

10:00 PM

Clear night

77° 💧 None 💨 5 mph H 73%30.03 inHg

Tomorrow

1:00 AM

Clear night

75° 💧 0.001 in 💨 6 mph H 75%30.06 inHg

4:00 AM

Clear night

73° 💧 None 💨 6 mph H 75%30.09 inHg

7:00 AM

Mostly clear night

71° 💧 0.006 in 💨 6 mph H 77%30.12 inHg

10:00 AM

Mostly sunny

77° 💧 None 💨 7 mph H 62%30.18 inHg

1:00 PM

Sunny

87° 💧 None 💨 5 mph H 47%30.12 inHg

4:00 PM

Mostly sunny

90° 💧 None 💨 6 mph H 39%30.06 inHg

7:00 PM

Sunny

82° 💧 None 💨 5 mph H 47%30.06 inHg

10:00 PM

Mostly cloudy night

75° 💧 None 💨 7 mph H 54%30.12 inHg

Thursday

1:00 AM

Overcast night

72° 💧 None 💨 7 mph H 58%30.15 inHg

4:00 AM

Overcast night

68° 💧 None 💨 5 mph H 68%30.15 inHg

7:00 AM

Overcast night

66° 💧 None 💨 6 mph H 72%30.18 inHg

Today

10:00 AM

Sunny

83° 💧 0.000 in 💨 5 mph H 60%30.03 inHg

11:00 AM

Sunny

86° 💧 None 💨 4 mph H 53%30.03 inHg

12:00 PM

Strong thunderstorm

88° 💧 None 💨 4 mph H 49%30.03 inHg

1:00 PM

Strong thunderstorm

90° 💧 0.000 in 💨 6 mph H 46%30.03 inHg

2:00 PM

Strong thunderstorm

91° 💧 0.001 in 💨 6 mph H 44%30.00 inHg

3:00 PM

Strong thunderstorm

91° 💧 0.001 in 💨 7 mph H 44%29.97 inHg

4:00 PM

Light rain

89° 💧 0.015 in 💨 6 mph H 50%29.97 inHg

5:00 PM

Light rain

84° 💧 0.084 in 💨 6 mph H 64%29.97 inHg

6:00 PM

Light rain

84° 💧 0.015 in 💨 3 mph H 76%29.94 inHg

7:00 PM

Mostly sunny

81° 💧 0.000 in 💨 3 mph H 76%29.97 inHg

8:00 PM

Mostly clear night

80° 💧 None 💨 4 mph H 71%29.97 inHg

9:00 PM

Clear night

79° 💧 None 💨 6 mph H 70%30.00 inHg

10:00 PM

Clear night

77° 💧 None 💨 5 mph H 73%30.03 inHg

11:00 PM

Clear night

76° 💧 None 💨 5 mph H 75%30.06 inHg

Tomorrow

12:00 AM

Clear night

76° 💧 None 💨 6 mph H 75%30.06 inHg

1:00 AM

Clear night

75° 💧 0.001 in 💨 6 mph H 75%30.06 inHg

2:00 AM

Clear night

75° 💧 None 💨 7 mph H 73%30.06 inHg

3:00 AM

Clear night

74° 💧 None 💨 7 mph H 74%30.06 inHg

4:00 AM

Clear night

73° 💧 None 💨 6 mph H 75%30.09 inHg

5:00 AM

Mostly clear night

72° 💧 None 💨 7 mph H 76%30.09 inHg

6:00 AM

Mostly clear night

72° 💧 None 💨 7 mph H 76%30.12 inHg

7:00 AM

Mostly clear night

71° 💧 0.001 in 💨 6 mph H 77%30.12 inHg

8:00 AM

Mostly sunny

72° 💧 0.002 in 💨 7 mph H 76%30.15 inHg

9:00 AM

Mostly sunny

74° 💧 0.002 in 💨 7 mph H 71%30.15 inHg

10:00 AM

Mostly sunny

77° 💧 None 💨 7 mph H 62%30.18 inHg

11:00 AM

Mostly sunny

81° 💧 None 💨 7 mph H 55%30.18 inHg

12:00 PM

Sunny

84° 💧 None 💨 6 mph H 50%30.15 inHg

1:00 PM

Sunny

87° 💧 None 💨 5 mph H 47%30.12 inHg

2:00 PM

Mostly sunny

89° 💧 None 💨 4 mph H 44%30.09 inHg

3:00 PM

Mostly sunny

90° 💧 None 💨 4 mph H 41%30.06 inHg

4:00 PM

Mostly sunny

90° 💧 None 💨 6 mph H 39%30.06 inHg

5:00 PM

Sunny

89° 💧 None 💨 6 mph H 39%30.06 inHg

6:00 PM

Sunny

87° 💧 None 💨 5 mph H 40%30.06 inHg

7:00 PM

Sunny

82° 💧 None 💨 5 mph H 47%30.06 inHg

8:00 PM

Clear night

78° 💧 None 💨 6 mph H 51%30.09 inHg

9:00 PM

Clear night

77° 💧 None 💨 6 mph H 52%30.09 inHg

10:00 PM

Mostly cloudy night

75° 💧 None 💨 7 mph H 54%30.12 inHg

11:00 PM

Partly cloudy night

74° 💧 None 💨 6 mph H 56%30.12 inHg

Thursday

12:00 AM

Overcast night

73° 💧 None 💨 7 mph H 58%30.12 inHg

1:00 AM

Overcast night

72° 💧 None 💨 7 mph H 58%30.15 inHg

2:00 AM

Overcast night

71° 💧 None 💨 7 mph H 61%30.15 inHg

3:00 AM

Overcast night

70° 💧 None 💨 6 mph H 65%30.15 inHg

4:00 AM

Overcast night

68° 💧 None 💨 5 mph H 68%30.15 inHg

5:00 AM

Overcast night

68° 💧 None 💨 6 mph H 69%30.18 inHg

6:00 AM

Overcast night

67° 💧 None 💨 6 mph H 71%30.18 inHg

7:00 AM

Overcast night

66° 💧 None 💨 6 mph H 72%30.18 inHg

8:00 AM

Overcast

67° 💧 None 💨 5 mph H 70%30.21 inHg

9:00 AM

Overcast

70° 💧 None 💨 5 mph H 65%30.21 inHg

10:00 AM

Overcast

74° 💧 None 💨 5 mph H 57%30.21 inHg

11:00 AM

Mostly cloudy

77° 💧 None 💨 5 mph H 50%30.21 inHg

12:00 PM

Mostly cloudy

81° 💧 None 💨 4 mph H 46%30.18 inHg

1:00 PM

Overcast

84° 💧 None 💨 4 mph H 42%30.15 inHg

2:00 PM

Overcast

86° 💧 None 💨 4 mph H 39%30.12 inHg

3:00 PM

Overcast

87° 💧 None 💨 4 mph H 37%30.09 inHg

4:00 PM

Mostly cloudy

87° 💧 None 💨 6 mph H 36%30.06 inHg

5:00 PM

Overcast

87° 💧 None 💨 6 mph H 36%30.06 inHg

6:00 PM

Overcast

85° 💧 None 💨 5 mph H 40%30.06 inHg

7:00 PM

Overcast

80° 💧 None 💨 4 mph H 47%30.06 inHg

Friday

4:00 AM

Partly cloudy night

67° 💧 None 💨 4 mph H 68%30.12 inHg

7:00 AM

Overcast night

65° 💧 None 💨 5 mph H 73%30.15 inHg

10:00 AM

Partly cloudy

76° 💧 None 💨 4 mph H 54%30.18 inHg

1:00 PM

Overcast

84° 💧 None 💨 3 mph H 41%30.12 inHg

4:00 PM

Mostly sunny

87° 💧 None 💨 3 mph H 37%30.03 inHg

7:00 PM

Partly cloudy

80° 💧 None 💨 4 mph H 47%30.03 inHg

10:00 PM

Mostly cloudy night

74° 💧 None 💨 5 mph H 55%30.06 inHg

Saturday

1:00 AM

Partly cloudy night

72° 💧 None 💨 5 mph H 58%30.06 inHg

4:00 AM

Partly cloudy night

70° 💧 None 💨 6 mph H 64%30.03 inHg

7:00 AM

Clear night

68° 💧 None 💨 5 mph H 69%30.06 inHg

10:00 AM

Partly cloudy

79° 💧 None 💨 5 mph H 52%30.09 inHg

1:00 PM

Mostly sunny

88° 💧 None 💨 4 mph H 37%30.03 inHg

4:00 PM

Mostly sunny

90° 💧 None 💨 3 mph H 33%29.97 inHg

7:00 PM

Sunny

83° 💧 None 💨 3 mph H 45%29.94 inHg

10:00 PM

Partly cloudy night

77° 💧 None 💨 5 mph H 48%30.00 inHg

Sunday

1:00 AM

Overcast night

74° 💧 None 💨 4 mph H 52%29.97 inHg

4:00 AM

Clear night

71° 💧 None 💨 5 mph H 58%29.97 inHg

7:00 AM

Mostly clear night

69° 💧 None 💨 3 mph H 64%30.00 inHg

10:00 AM

Mostly sunny

82° 💧 None 💨 1 mph H 46%30.00 inHg

1:00 PM

Mostly cloudy

91° 💧 None 💨 6 mph H 36%29.97 inHg

4:00 PM

Sunny

92° 💧 None 💨 4 mph H 32%29.88 inHg

7:00 PM

Mostly sunny

84° 💧 None 💨 2 mph H 45%29.85 inHg

10:00 PM

Mostly cloudy night

80° 💧 None 💨 2 mph H 49%29.88 inHg

Monday

1:00 AM

Mostly clear night

78° 💧 None 💨 2 mph H 54%29.88 inHg

7:00 AM

Mostly clear night

76° 💧 None 💨 4 mph H 54%29.88 inHg

1:00 PM

Sunny

72° 💧 None 💨 6 mph H 63%29.88 inHg

7:00 PM

Mostly sunny

88° 💧 None 💨 5 mph H 45%29.88 inHg

Tuesday

1:00 AM

Mostly cloudy night

83° 💧 None 💨 1 mph H 62%29.80 inHg

7:00 AM

Overcast night

76° 💧 None 💨 5 mph H 71%29.83 inHg

1:00 PM

Overcast

72° 💧 None 💨 5 mph H 80%29.83 inHg

7:00 PM

Overcast

87° 💧 None 💨 8 mph H 51%29.83 inHg

Wednesday

1:00 AM

Overcast night

84° 💧 None 💨 7 mph H 52%29.74 inHg

7:00 AM

Light rain

71° 💧 None 💨 6 mph H 97%29.83 inHg

1:00 PM

Moderate rain

68° 💧 None 💨 7 mph H 99%29.80 inHg

7:00 PM

Light thunderstorms

73° 💧 None 💨 13 mph H 98%29.80 inHg

Thursday

1:00 AM

Moderate rain

71° 💧 None 💨 13 mph H 99%29.80 inHg

7:00 AM

Moderate rain

69° 💧 None 💨 6 mph H 99%29.85 inHg

1:00 PM

Moderate rain

68° 💧 None 💨 8 mph H 100%29.88 inHg

7:00 PM

Moderate rain

71° 💧 None 💨 11 mph H 99%29.88 inHg

Friday

1:00 AM

Heavy rain

69° 💧 None 💨 10 mph H 99%29.85 inHg

7:00 AM

Moderate rain

69° 💧 None 💨 14 mph H 99%29.88 inHg

1:00 PM

Light rain

69° 💧 None 💨 11 mph H 99%29.88 inHg

7:00 PM

Light rain

72° 💧 None 💨 7 mph H 99%29.91 inHg

Saturday

1:00 AM

Overcast night

71° 💧 None 💨 9 mph H 98%29.88 inHg

7:00 AM

Light rain

70° 💧 None 💨 6 mph H 100%29.88 inHg

1:00 PM

Overcast

70° 💧 None 💨 4 mph H 99%29.88 inHg

7:00 PM

Light rain

75° 💧 None 💨 6 mph H 87%29.91 inHg

Sunday

1:00 AM

Mostly cloudy night

74° 💧 None 💨 5 mph H 89%29.85 inHg

7:00 AM

Overcast night

71° 💧 None 💨 5 mph H 98%29.91 inHg

1:00 PM

Overcast

71° 💧 None 💨 2 mph H 97%29.94 inHg

7:00 PM

Partly cloudy night

82° 💧 None 💨 2 mph H 67%29.94 inHg

Monday

1:00 AM

Mostly clear night

75° 💧 None 💨 2 mph H 88%29.91 inHg

7:00 AM

Mostly clear night

71° 💧 None 💨 6 mph H 91%29.97 inHg

1:00 PM

Mostly cloudy

70° 💧 None 💨 6 mph H 94%30.00 inHg

7:00 PM

Light rain

77° 💧 None 💨 5 mph H 80%30.00 inHg

Tuesday

1:00 AM

Mostly clear night

72° 💧 None 💨 5 mph H 97%29.97 inHg

7:00 AM

Overcast night

69° 💧 None 💨 4 mph H 96%30.03 inHg

1:00 PM

Overcast

67° 💧 None 💨 5 mph H 95%30.03 inHg

7:00 PM

Partly cloudy night

76° 💧 None 💨 6 mph H 67%30.03 inHg

Wednesday

1:00 AM

Mostly cloudy night

70° 💧 None 💨 9 mph H 74%30.00 inHg

In Grannis and, more broadly, across the state of Arkansas: This morning will feature a mix of sun and clouds with temperatures starting around 70 degrees. Light northeast winds at up to 6 mph are expected, with occasional gusts reaching 12 mph. As the day progresses, temperatures will rise into the upper 80s and possibly reach the low 90s. There is a chance of scattered rain, with a total accumulation around 0.04 inches and a maximum probability of 54%. Winds will remain light from the northeast, maintaining gentle breezes throughout the day. Overall, expect warm conditions with some clouds and brief periods of rain possible later in the afternoon.

15-Day Weather Outlook for Grannis

TomorrowTomorrow

Mostly sunny 90°/71° 💧 None 💨 7 mph

Thursday, Sep 24Thu Sep 24

Overcast 87°/66° 💧 None 💨 7 mph

Friday, Sep 25Fri Sep 25

Partly cloudy 87°/65° 💧 0.050 in 💨 5 mph

Saturday, Sep 26Sat Sep 26

Partly cloudy 90°/68° 💧 None 💨 6 mph

Sunday, Sep 27Sun Sep 27

Overcast 92°/69° 💧 None 💨 6 mph

Monday, Sep 28Mon Sep 28

Mostly sunny 88°/72° 💧 0.005 in 💨 6 mph

Tuesday, Sep 29Tue Sep 29

Overcast 87°/72° 💧 0.043 in 💨 8 mph

Wednesday, Sep 30Wed Sep 30

Light thunderstorms 84°/68° 💧 1.282 in 💨 13 mph

Thursday, Oct 1Thu Oct 1

Moderate rain 71°/68° 💧 1.978 in 💨 13 mph

Friday, Oct 2Fri Oct 2

Heavy rain 72°/69° 💧 1.695 in 💨 14 mph

Saturday, Oct 3Sat Oct 3

Light rain 75°/70° 💧 0.196 in 💨 9 mph

Sunday, Oct 4Sun Oct 4

Overcast 82°/71° 💧 0.064 in 💨 5 mph

Monday, Oct 5Mon Oct 5

Light rain 77°/70° 💧 0.076 in 💨 6 mph

Tuesday, Oct 6Tue Oct 6

Mostly sunny 76°/67° 💧 0.348 in 💨 6 mph

Wednesday, Oct 7Wed Oct 7

Mostly cloudy 70°/70° 💧 0.001 in 💨 9 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Grannis

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Grannis

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 10:00 AM

PM2.5 Fine particles Good 4,8µg/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 10,3µg/m³

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

O₃ Ozone Good 21,6µg/m³

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

NO₂ Nitrogen dioxide Good 2,6µg/m³

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

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Grannis

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 7,4High 😊Good

Tomorrow UV 8,1Very high 😐Moderate

Thursday UV 8,0Very high 😐Moderate

Friday UV 6,9High 😐Moderate

Saturday UV 8,0Very high 🙂Fair

Sunday UV 7,0High —Unavailable

Monday UV 6,0High —Unavailable

Hourly UV index today

10:00 AMUV 2,7 11:00 AMUV 4,8 12:00 PMUV 6,7 1:00 PMUV 7,2 2:00 PMUV 7,4 3:00 PMUV 6,2 4:00 PMUV 4,1 5:00 PMUV 2,0 6:00 PMUV 0,6 7:00 PMUV 0,0

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.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

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 Grannis

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · GRANNIS, ARKANSAS

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 4:00 AM–5:00 AM.

100/100Best-hour score

BEST TIME TONIGHT 4:00 AM–5:00 AM Astronomical darkness: 8:37 PM–5:42 AM

☁ Cloud cover 0% Real hourly forecast for the best viewing hour.

☾ Moonlight 89% Waxing Gibbous · Moon below the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 69° high at the best hour.

✦ Estimated visible meteors 1–4/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min75%

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

SEP 20–NOV 20

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

ACTIVE NOW

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

NOV 6–NOV 30

LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% 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.

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Forecast data for Grannis were last refreshed today at 9:41 AM. The current forecast period extends through 24/09/2026 at 7:00 AM. 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.