10-day forecast for Eureka, MT: 50° to 93°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
93°
Best day: Monday, August 17
77° · 0.17 in
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1090° / 53°0
Morning64°feels 61°
Afternoon90°feels 86°
Evening81°feels 80°
Overnight59°feels 57°
90 °
Eureka, Monday, 10 August
Clear. High 90°, low 53°.
Pressure29.83 inHg
Wind0.9 mph W
Humidity18%
Visibility6.2 mi
Dew point36°
Tue, 1191° / 55°0
Morning62°feels 60°
Afternoon90°feels 87°
Evening82°feels 80°
Overnight63°feels 61°
91 °
Eureka, Tuesday, 11 August
Clear. High 91°, low 55°.
Pressure29.94 inHg
Wind0.6 mph SE
Humidity22%
Visibility6.2 mi
Dew point39°
Wed, 1289° / 55°0
Morning62°feels 61°
Afternoon87°feels 84°
Evening81°feels 80°
Overnight62°feels 60°
89 °
Eureka, Wednesday, 12 August
Overcast. High 89°, low 55°.
Pressure29.88 inHg
Wind2 mph NW
Humidity39%
Visibility6.2 mi
Dew point49°
Thu, 1377° / 55°0.17
Morning59°feels 59°
Afternoon71°feels 70°
Evening69°feels 69°
Overnight59°feels 59°
77 °
Eureka, Thursday, 13 August
Light rain. High 77°, low 55°.
Pressure29.88 inHg
Wind6.1 mph N
Humidity61%
Visibility—
Dew point54°
Fri, 1479° / 51°0.02
Morning57°feels 56°
Afternoon73°feels 72°
Evening77°feels 77°
Overnight63°feels 62°
79 °
Eureka, Friday, 14 August
Light rain. High 79°, low 51°.
Pressure30.06 inHg
Wind4.9 mph N
Humidity52%
Visibility—
Dew point50°
Sat, 1588° / 50°0
Morning58°feels 57°
Afternoon78°feels 77°
Evening85°feels 82°
Overnight67°feels 65°
88 °
Eureka, Saturday, 15 August
Clear. High 88°, low 50°.
Pressure30.09 inHg
Wind3.8 mph NE
Humidity39%
Visibility—
Dew point46°
Sun, 1692° / 60°0
Morning68°feels 65°
Afternoon89°feels 85°
Evening87°feels 84°
Overnight71°feels 69°
92 °
Eureka, Sunday, 16 August
Partly cloudy. High 92°, low 60°.
Pressure29.94 inHg
Wind14.9 mph W
Humidity18%
Visibility—
Dew point36°
Mon, 1793° / 62°0
Morning70°feels 67°
Afternoon89°feels 85°
Evening87°feels 83°
Overnight71°feels 69°
93 °
Eureka, Monday, 17 August
Mostly clear. High 93°, low 62°.
Pressure29.91 inHg
Wind12.5 mph W
Humidity13%
Visibility—
Dew point29°
Tue, 1891° / 64°0
Morning71°feels 68°
Afternoon86°feels 83°
Evening85°feels 83°
Overnight73°feels 72°
91 °
Eureka, Tuesday, 18 August
Light rain. High 91°, low 64°.
Pressure29.97 inHg
Wind8.2 mph SW
Humidity30%
Visibility—
Dew point48°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Eureka, MT around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.