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Current weather in Spencer is clear sky.

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

Now · 2:45 PM

Spencer Weather & Hourly Forecast

United States · Idaho · 83446

65°F

Sunny

Feels like: 57°F

💧 Humidity 42% 🌡 Pressure 29.94 inHg 💨 Wind 10 mph 👁 Visibility 25.8 mi ☁ Clouds 0% ☀️ UV index 7.2 · High 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Spencer

Today

3:00 PM

Sunny

65° 💧 None 💨 10 mph H 42%29.94 inHg

6:00 PM

Sunny

63° 💧 None 💨 6 mph H 44%29.94 inHg

9:00 PM

Clear night

52° 💧 None 💨 2 mph H 62%29.94 inHg

Tomorrow

12:00 AM

Clear night

51° 💧 None 💨 2 mph H 55%29.91 inHg

3:00 AM

Mostly clear night

50° 💧 None 💨 3 mph H 58%29.88 inHg

6:00 AM

Partly cloudy night

44° 💧 None 💨 8 mph H 78%29.94 inHg

9:00 AM

Sunny

56° 💧 None 💨 4 mph H 54%29.97 inHg

12:00 PM

Sunny

62° 💧 None 💨 9 mph H 44%29.94 inHg

3:00 PM

Sunny

67° 💧 0.001 in 💨 10 mph H 35%29.85 inHg

6:00 PM

Sunny

67° 💧 None 💨 11 mph H 25%29.80 inHg

9:00 PM

Clear night

56° 💧 None 💨 1 mph H 39%29.80 inHg

Monday

12:00 AM

Partly cloudy night

50° 💧 None 💨 3 mph H 48%29.77 inHg

3:00 AM

Light rain

48° 💧 0.086 in 💨 5 mph H 78%29.83 inHg

6:00 AM

Light thunderstorms

46° 💧 0.035 in 💨 6 mph H 98%29.88 inHg

9:00 AM

Partly cloudy

47° 💧 0.017 in 💨 6 mph H 88%29.94 inHg

12:00 PM

Light rain

53° 💧 0.022 in 💨 10 mph H 57%29.97 inHg

Today

3:00 PM

Sunny

65° 💧 None 💨 10 mph H 42%29.94 inHg

4:00 PM

Sunny

65° 💧 None 💨 10 mph H 39%29.94 inHg

5:00 PM

Sunny

64° 💧 None 💨 9 mph H 39%29.94 inHg

6:00 PM

Sunny

63° 💧 None 💨 6 mph H 44%29.94 inHg

7:00 PM

Sunny

60° 💧 None 💨 1 mph H 53%29.94 inHg

8:00 PM

Clear night

54° 💧 None 💨 1 mph H 64%29.94 inHg

9:00 PM

Clear night

52° 💧 None 💨 2 mph H 62%29.94 inHg

10:00 PM

Clear night

53° 💧 None 💨 1 mph H 55%29.94 inHg

11:00 PM

Clear night

53° 💧 None 💨 2 mph H 52%29.94 inHg

Tomorrow

12:00 AM

Clear night

51° 💧 None 💨 2 mph H 55%29.91 inHg

1:00 AM

Clear night

50° 💧 None 💨 3 mph H 57%29.91 inHg

2:00 AM

Clear night

50° 💧 None 💨 3 mph H 58%29.88 inHg

3:00 AM

Mostly clear night

50° 💧 None 💨 3 mph H 58%29.88 inHg

4:00 AM

Partly cloudy night

50° 💧 None 💨 3 mph H 55%29.88 inHg

5:00 AM

Partly cloudy night

46° 💧 None 💨 5 mph H 67%29.88 inHg

6:00 AM

Partly cloudy night

44° 💧 None 💨 8 mph H 78%29.94 inHg

7:00 AM

Partly cloudy

44° 💧 None 💨 7 mph H 77%29.94 inHg

8:00 AM

Mostly sunny

47° 💧 None 💨 5 mph H 71%29.94 inHg

9:00 AM

Sunny

56° 💧 None 💨 4 mph H 54%29.97 inHg

10:00 AM

Sunny

59° 💧 None 💨 4 mph H 45%29.97 inHg

11:00 AM

Sunny

61° 💧 None 💨 8 mph H 45%29.94 inHg

12:00 PM

Sunny

62° 💧 None 💨 9 mph H 44%29.94 inHg

1:00 PM

Sunny

64° 💧 None 💨 10 mph H 40%29.91 inHg

2:00 PM

Sunny

66° 💧 None 💨 9 mph H 37%29.88 inHg

3:00 PM

Sunny

67° 💧 0.001 in 💨 10 mph H 35%29.85 inHg

4:00 PM

Sunny

68° 💧 0.001 in 💨 10 mph H 30%29.83 inHg

5:00 PM

Sunny

69° 💧 None 💨 13 mph H 24%29.80 inHg

6:00 PM

Sunny

67° 💧 None 💨 11 mph H 25%29.80 inHg

7:00 PM

Mostly sunny

65° 💧 None 💨 8 mph H 29%29.77 inHg

8:00 PM

Mostly clear night

58° 💧 None 💨 5 mph H 36%29.80 inHg

9:00 PM

Clear night

56° 💧 None 💨 1 mph H 39%29.80 inHg

10:00 PM

Clear night

52° 💧 None 💨 2 mph H 46%29.80 inHg

11:00 PM

Clear night

50° 💧 None 💨 1 mph H 48%29.80 inHg

Monday

12:00 AM

Partly cloudy night

50° 💧 None 💨 3 mph H 48%29.77 inHg

1:00 AM

Overcast night

50° 💧 None 💨 5 mph H 54%29.80 inHg

2:00 AM

Mostly cloudy night

52° 💧 None 💨 7 mph H 57%29.80 inHg

3:00 AM

Light rain

48° 💧 0.004 in 💨 5 mph H 78%29.83 inHg

4:00 AM

Light rain

46° 💧 0.060 in 💨 5 mph H 96%29.85 inHg

5:00 AM

Light rain

45° 💧 0.022 in 💨 7 mph H 97%29.85 inHg

6:00 AM

Light thunderstorms

46° 💧 0.022 in 💨 6 mph H 98%29.88 inHg

7:00 AM

Mostly cloudy

44° 💧 0.002 in 💨 2 mph H 99%29.91 inHg

8:00 AM

Light rain

45° 💧 0.011 in 💨 4 mph H 99%29.91 inHg

9:00 AM

Partly cloudy

47° 💧 0.001 in 💨 6 mph H 88%29.94 inHg

10:00 AM

Light rain

48° 💧 0.007 in 💨 13 mph H 71%29.97 inHg

11:00 AM

Light rain

50° 💧 0.009 in 💨 10 mph H 64%29.97 inHg

12:00 PM

Light rain

53° 💧 0.008 in 💨 10 mph H 57%29.97 inHg

1:00 PM

Light rain

55° 💧 0.006 in 💨 11 mph H 50%29.94 inHg

2:00 PM

Light rain

56° 💧 0.007 in 💨 11 mph H 43%29.94 inHg

3:00 PM

Light rain

59° 💧 0.006 in 💨 12 mph H 33%29.91 inHg

4:00 PM

Mostly cloudy

59° 💧 None 💨 13 mph H 31%29.91 inHg

5:00 PM

Mostly cloudy

58° 💧 None 💨 14 mph H 31%29.91 inHg

6:00 PM

Partly cloudy

55° 💧 None 💨 14 mph H 39%29.94 inHg

7:00 PM

Sunny

54° 💧 None 💨 11 mph H 42%29.94 inHg

8:00 PM

Clear night

49° 💧 None 💨 8 mph H 50%29.97 inHg

9:00 PM

Clear night

46° 💧 None 💨 4 mph H 61%30.00 inHg

10:00 PM

Clear night

44° 💧 None 💨 3 mph H 66%30.03 inHg

11:00 PM

Clear night

42° 💧 None 💨 2 mph H 69%30.06 inHg

Tuesday

12:00 AM

Clear night

41° 💧 None 💨 2 mph H 74%30.06 inHg

1:00 AM

Clear night

39° 💧 None 💨 2 mph H 78%30.09 inHg

2:00 AM

Clear night

39° 💧 None 💨 1 mph H 77%30.09 inHg

3:00 AM

Clear night

39° 💧 None 💨 1 mph H 77%30.09 inHg

4:00 AM

Clear night

38° 💧 None 💨 1 mph H 77%30.12 inHg

5:00 AM

Clear night

37° 💧 None 💨 1 mph H 79%30.15 inHg

6:00 AM

Clear night

36° 💧 None 💨 1 mph H 82%30.15 inHg

9:00 AM

Sunny

50° 💧 None 💨 5 mph H 61%30.21 inHg

12:00 PM

Sunny

59° 💧 None 💨 5 mph H 46%30.21 inHg

3:00 PM

Sunny

65° 💧 None 💨 7 mph H 31%30.12 inHg

6:00 PM

Sunny

68° 💧 None 💨 6 mph H 25%30.09 inHg

9:00 PM

Clear night

59° 💧 None 💨 2 mph H 44%30.12 inHg

Wednesday

12:00 AM

Clear night

51° 💧 None 💨 4 mph H 55%30.18 inHg

3:00 AM

Partly cloudy night

51° 💧 None 💨 5 mph H 49%30.21 inHg

6:00 AM

Partly cloudy night

49° 💧 None 💨 4 mph H 48%30.24 inHg

9:00 AM

Sunny

56° 💧 None 💨 4 mph H 39%30.30 inHg

12:00 PM

Sunny

66° 💧 None 💨 4 mph H 27%30.24 inHg

3:00 PM

Sunny

72° 💧 None 💨 7 mph H 18%30.15 inHg

6:00 PM

Sunny

75° 💧 None 💨 8 mph H 17%30.09 inHg

9:00 PM

Clear night

64° 💧 None 💨 3 mph H 31%30.06 inHg

Thursday

12:00 AM

Mostly clear night

57° 💧 None 💨 6 mph H 37%30.09 inHg

3:00 AM

Mostly cloudy night

54° 💧 None 💨 6 mph H 41%30.12 inHg

6:00 AM

Overcast night

53° 💧 None 💨 6 mph H 43%30.12 inHg

9:00 AM

Mostly cloudy

58° 💧 None 💨 8 mph H 40%30.15 inHg

12:00 PM

Sunny

68° 💧 None 💨 5 mph H 26%30.09 inHg

3:00 PM

Partly cloudy

77° 💧 None 💨 9 mph H 16%29.97 inHg

6:00 PM

Mostly cloudy

78° 💧 None 💨 4 mph H 17%29.85 inHg

9:00 PM

Clear night

66° 💧 None 💨 4 mph H 33%29.85 inHg

Friday

12:00 AM

Clear night

62° 💧 None 💨 5 mph H 38%29.88 inHg

3:00 AM

Clear night

57° 💧 None 💨 2 mph H 46%29.91 inHg

6:00 AM

Mostly clear night

54° 💧 None 💨 7 mph H 51%29.91 inHg

12:00 PM

Partly cloudy

71° 💧 None 💨 9 mph H 31%29.83 inHg

6:00 PM

Mostly sunny

76° 💧 None 💨 22 mph H 24%29.62 inHg

Saturday

12:00 AM

Clear night

52° 💧 None 💨 21 mph H 60%29.83 inHg

6:00 AM

Clear night

44° 💧 None 💨 8 mph H 52%29.94 inHg

12:00 PM

Partly cloudy

59° 💧 None 💨 6 mph H 27%29.97 inHg

6:00 PM

Partly cloudy

63° 💧 None 💨 15 mph H 19%29.91 inHg

Sunday

12:00 AM

Mostly clear night

46° 💧 None 💨 11 mph H 60%30.18 inHg

6:00 AM

Clear night

36° 💧 None 💨 5 mph H 72%30.27 inHg

12:00 PM

Sunny

54° 💧 None 💨 2 mph H 20%30.21 inHg

6:00 PM

Sunny

63° 💧 None 💨 3 mph H 17%30.03 inHg

Monday

12:00 AM

Clear night

52° 💧 None 💨 4 mph H 31%30.03 inHg

6:00 AM

Clear night

46° 💧 None 💨 4 mph H 34%30.06 inHg

12:00 PM

Sunny

67° 💧 None 💨 4 mph H 18%30.03 inHg

6:00 PM

Sunny

76° 💧 None 💨 7 mph H 11%29.88 inHg

Tuesday

12:00 AM

Mostly clear night

59° 💧 None 💨 5 mph H 25%29.94 inHg

6:00 AM

Partly cloudy night

53° 💧 None 💨 4 mph H 30%29.97 inHg

12:00 PM

Partly cloudy

76° 💧 None 💨 4 mph H 15%29.97 inHg

6:00 PM

Mostly sunny

82° 💧 None 💨 11 mph H 14%29.83 inHg

Wednesday

12:00 AM

Mostly clear night

65° 💧 None 💨 8 mph H 43%29.94 inHg

6:00 AM

Mostly clear night

59° 💧 None 💨 5 mph H 52%30.00 inHg

12:00 PM

Partly cloudy

78° 💧 None 💨 6 mph H 27%30.00 inHg

6:00 PM

Partly cloudy

82° 💧 None 💨 4 mph H 22%29.91 inHg

Thursday

12:00 AM

Clear night

62° 💧 None 💨 8 mph H 60%30.00 inHg

6:00 AM

Clear night

59° 💧 None 💨 5 mph H 59%30.03 inHg

12:00 PM

Sunny

75° 💧 None 💨 6 mph H 33%30.09 inHg

6:00 PM

Mostly sunny

83° 💧 None 💨 7 mph H 14%29.91 inHg

Friday

12:00 AM

Clear night

60° 💧 None 💨 8 mph H 39%30.00 inHg

6:00 AM

Clear night

51° 💧 None 💨 5 mph H 63%30.06 inHg

12:00 PM

Sunny

74° 💧 None 💨 4 mph H 27%30.03 inHg

6:00 PM

Sunny

79° 💧 None 💨 10 mph H 11%29.88 inHg

Saturday

12:00 AM

Clear night

56° 💧 None 💨 8 mph H 44%29.88 inHg

6:00 AM

Clear night

53° 💧 None 💨 6 mph H 55%29.97 inHg

12:00 PM

Sunny

72° 💧 None 💨 2 mph H 26%29.97 inHg

6:00 PM

Mostly sunny

75° 💧 None 💨 7 mph H 19%29.85 inHg

Sunday

12:00 AM

Clear night

58° 💧 None 💨 8 mph H 41%29.94 inHg

6:00 AM

Clear night

53° 💧 None 💨 6 mph H 46%29.94 inHg

In Spencer and, more broadly, across the state of Idaho: As the afternoon turns into evening, the sky features a mix of sun and clouds. Temperatures will remain cool, ranging from around 52 to 63 degrees Fahrenheit. Light southwest winds will continue, generally blowing at up to 6 mph, with occasional gusts reaching 19 mph. There is a possibility of light rain, with expected accumulation around 0.06 inches. The rain may occur intermittently throughout the evening, so it’s a good idea to have an umbrella handy if you're heading out. Overall, expect a mild but unsettled evening with brief periods of rain and breezy conditions.

15-Day Weather Outlook for Spencer

TomorrowTomorrow

Mostly sunny 69°/44° 💧 None 💨 13 mph

Monday, Sep 7Mon Sep 7

Light thunderstorms 67°/44° 💧 None 💨 14 mph

Tuesday, Sep 8Tue Sep 8

Partly cloudy 65°/36° 💧 0.117 in 💨 14 mph

Wednesday, Sep 9Wed Sep 9

Partly cloudy 72°/49° 💧 None 💨 7 mph

Thursday, Sep 10Thu Sep 10

Mostly sunny 77°/53° 💧 None 💨 9 mph

Friday, Sep 11Fri Sep 11

Partly cloudy 78°/54° 💧 None 💨 9 mph

Saturday, Sep 12Sat Sep 12

Mostly sunny 76°/44° 💧 0.011 in 💨 22 mph

Sunday, Sep 13Sun Sep 13

Partly cloudy 63°/36° 💧 None 💨 15 mph

Monday, Sep 14Mon Sep 14

Sunny 67°/46° 💧 None 💨 4 mph

Tuesday, Sep 15Tue Sep 15

Mostly sunny 76°/53° 💧 None 💨 7 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 82°/59° 💧 None 💨 11 mph

Thursday, Sep 17Thu Sep 17

Partly cloudy 82°/59° 💧 0.004 in 💨 8 mph

Friday, Sep 18Fri Sep 18

Mostly sunny 83°/51° 💧 None 💨 8 mph

Saturday, Sep 19Sat Sep 19

Sunny 79°/53° 💧 0.001 in 💨 10 mph

Sunday, Sep 20Sun Sep 20

Mostly sunny 75°/53° 💧 None 💨 8 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Spencer

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Spencer

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 3:00 PM

PM2.5 Fine particles Good 1,3µg/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 3,6µg/m³

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

O₃ Ozone Fair 75,2µg/m³

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

NO₂ Nitrogen dioxide Good 0,3µg/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 Spencer

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 7,3High 🙂Fair

Tomorrow UV 7,2High 😐Moderate

Monday UV 6,8High 🙂Fair

Tuesday UV 6,7High 😐Moderate

Wednesday UV 6,6High 🙂Fair

Thursday UV 6,0High —Unavailable

Friday UV 6,0High —Unavailable

Hourly UV index today

3:00 PMUV 6,1 4:00 PMUV 4,3 5:00 PMUV 2,4 6:00 PMUV 1,0 7:00 PMUV 0,2

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.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

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 Spencer

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · SPENCER, IDAHO

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 1:00 AM–2:00 AM.

99/100Best-hour score

BEST TIME TONIGHT 1:00 AM–2:00 AM Astronomical darkness: 9:40 PM–5:15 AM

☁ Cloud cover 1% Real hourly forecast for the best viewing hour.

☾ Moonlight 31% Last Quarter · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 40° high at the best hour.

✦ Estimated visible meteors 1–3/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min65%

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

AUG 28–SEP 5

AurigidsStart AUG 28 · Peak SEP 1 · End SEP 5 · ZHR 6 · 80% Moon at peak

ACTIVE NOW

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

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 Spencer were last refreshed today at 2:45 PM. The current forecast period extends through 07/09/2026 at 12:00 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.