Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Saco US-2 MP 502.5 (MTSCO)

Lat: 48.45138°NLon: 107.30166°WElev: 2180.0ft.

NA

58°F

14°C

Humidity 81%
Wind Speed SW 0 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Last update 18 Aug 05:31 AM MDT
Extended Forecast for

5 Miles ESE Saco MT

Heat Advisory August 19, 10:00am until August 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Today

    Today: Sunny, with a high near 90. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 90 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 63. South wind around 6 mph becoming east after midnight.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 101. East southeast wind 5 to 8 mph.

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 65. South southwest wind 6 to 8 mph becoming east northeast in the evening.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 96. East northeast wind 6 to 10 mph becoming north northwest in the afternoon.

    High: 96 °F

    Hot

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms after midnight.  Partly cloudy, with a low around 61. North northwest wind 8 to 10 mph.

    Low: 61 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms before noon.  Mostly sunny, with a high near 81. North northwest wind around 10 mph, with gusts as high as 18 mph.

    High: 81 °F

    Slight Chance
    T-storms then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 52. North wind 6 to 10 mph.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 78. North northwest wind 6 to 9 mph.

    High: 78 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 90. Calm wind becoming southwest around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 63. South wind around 6 mph becoming east after midnight.
Tuesday
Sunny and hot, with a high near 101. East southeast wind 5 to 8 mph.
Tuesday Night
Mostly clear, with a low around 65. South southwest wind 6 to 8 mph becoming east northeast in the evening.
Wednesday
Sunny and hot, with a high near 96. East northeast wind 6 to 10 mph becoming north northwest in the afternoon.
Wednesday Night
A 20 percent chance of showers and thunderstorms after midnight. Partly cloudy, with a low around 61. North northwest wind 8 to 10 mph.
Thursday
A 20 percent chance of showers and thunderstorms before noon. Mostly sunny, with a high near 81. North northwest wind around 10 mph, with gusts as high as 18 mph.
Thursday Night
Mostly clear, with a low around 52. North wind 6 to 10 mph.
Friday
Sunny, with a high near 78. North northwest wind 6 to 9 mph.
Friday Night
Mostly clear, with a low around 50. North wind 6 to 9 mph becoming east northeast after midnight.
Saturday
Sunny, with a high near 78. East wind 6 to 9 mph.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 82.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Saco MT
 48.43°N 107.25°W (Elev. 2178 ft)
2:17 am MDT Aug 18, 2025
5am MDT Aug 18, 2025-6pm MDT Aug 24, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database