Local weather forecast

Weather in Saint Anthony, ID

Updated 2026-08-11 11:45 local time · ZIP codes 83445

Now78°F

Sunny

High / Low94° / 55°

Rain chance1%

Wind5 mph

Weather alerts

Active alerts

Red Flag Warning issued August 11 at 2:17AM MDT until August 11 at 9:00PM MDT by NWS Riverton WY

The National Weather Service in Riverton has issued a Red Flag Warning, which is in effect from noon today to 9 PM MDT this evening. * IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty Winds...could cause erratic fire behavior. * AFFECTED AREA: In Northwest WY...Fire Weather Zone 140. * COUNTIES AFFECTED: In Northwest WY...Yellowstone National Park. * WIND: West 10 to 15 mph with gusts up to 30 mph. * HUMIDITY: As low as 14 percent. * TEMPERATURES: Highs in the upper 70s.

Safety instructions

A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior.

Hourly

Next hours

Now

78°0% rain

1 PM

90°0% rain

2 PM

92°0% rain

3 PM

94°0% rain

4 PM

94°1% rain

5 PM

94°1% rain

6 PM

94°1% rain

7 PM

92°2% rain

8 PM

86°2% rain

9 PM

77°2% rain

10 PM

73°2% rain

11 PM

71°2% rain

Forecast

3-day weather forecast

Today2026-08-11

94° 55°Sunny

Rain 1%Gust 12 mph

Tomorrow2026-08-12

93° 63°Partly Cloudy

Rain 2%Gust 20 mph

Thursday2026-08-13

81° 55°Sunny

Rain 57%Gust 19 mph

Conditions

Weather details

Feels like77°F

Humidity23%

Pressure30.15 inHg

Visibility10 mi

Wind5 mph SW

Wind gusts5 mph

Precipitation0.00 in

UV index5

Daylight

Sunrise, sunset and moon

Sunrise06:26 AM

Sunset08:37 PM

Moonrise04:27 AM

Moon phaseNew Moon

Practical guide

Weather insights for today

Umbrella not essential

Rain chance stays relatively low over the next 12 hours (up to 2%).

Light layers should work

It feels like 77°F with winds near 5 mph.

Best window: 12 PM

85°F, 0% rain chance and 7 mph wind.

Driving conditions look generally normal

Visibility is around 10 mi; gusts may reach 22 mph.

Run with a few weather adjustments

Current temperature is 78°F, wind 5 mph, rain chance up to 2%.

Moderate UV protection recommended

UV index is 5. Sunscreen and sunglasses are sensible for longer outdoor time.

Saint Anthony weather today

Sunny and 78°F in Saint Anthony, ID. Today's high is 94°F with a 1% rain chance. Winds are around 5 mph with gusts near 5 mph. Relative humidity is 23%, pressure is 30.15 inHg, and visibility is about 10 miles.

Tonight and tomorrow in Saint Anthony

Sunrise is at 06:26 AM and sunset is at 08:37 PM. Tomorrow's forecast calls for Partly Cloudy with a high near 93°F and a low near 63°F. The maximum rain chance is 2%.

Nearby

Weather near Saint Anthony

Sugar City, ID~10 mi away Teton, ID~10 mi away Rexburg, ID~12 mi away Chester, ID~12 mi away Newdale, ID~17 mi away Menan, ID~20 mi away Ashton, ID~22 mi away Rigby, ID~22 mi away

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