Altona, CO Weather Forecast
Local 7-day forecast
Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Altona, CO in one place.
Partly sunny. High near 51, with temperatures falling to around 46 in the afternoon. East northeast wind 0 to 3 mph.
Local Weather Overview
This forecast page for Altona, CO is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Nov 5, 2026 4:14 PM MST.
The active forecast window currently covers Nov 6 to Nov 11, 2026 for Altona, CO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 6 to Nov 11, 2026
- Latest sync
- Nov 5, 2026 4:14 PM MST
- Forecast office
- BOU
- Source
- NOAA / NWS
Daily Outlook
This Week in Altona
Sunday looks like the warmest upcoming period in Altona at 62 degrees F.
Friday Night is the coolest period ahead with temperatures near 34 degrees F.
The strongest winds are forecast for Sunday Night at about 5 to 12 mph W.
The forecast from Nov 6 through Nov 11 stays mostly dry.
Forecast Details
- Last updated
- Nov 5, 2026 4:14 PM MST
- Coverage
- 7 days
- Time zone
- America/Denver
- Forecast office
- BOU
- Radar station
- KFTG
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 34. West northwest wind around 5 mph.
Sunny, with a high near 55. Southwest wind 0 to 7 mph.
Mostly clear, with a low around 38.
Sunny, with a high near 62.
Clear, with a low around 42.
Sunny, with a high near 61.
Mostly clear, with a low around 41.
Mostly sunny, with a high near 62.
Mostly clear, with a low around 42.
Sunny, with a high near 58.
Mostly clear, with a low around 42.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Nov 6
|
Partly Sunny
|
51°F |
0 to 3 mph
ENE
|
|
Friday Night
Nov 6
|
Mostly Clear
|
34°F |
5 mph
WNW
|
|
Saturday
Nov 7
|
Sunny
|
55°F |
0 to 7 mph
SW
|
|
Saturday Night
Nov 7
|
Mostly Clear
|
38°F |
1 to 5 mph
W
|
|
Sunday
Nov 8
|
Sunny
|
62°F |
0 to 6 mph
WSW
|
|
Sunday Night
Nov 8
|
Clear
|
42°F |
5 to 12 mph
W
|
|
Monday
Nov 9
|
Sunny
|
61°F |
0 to 8 mph
S
|
|
Monday Night
Nov 9
|
Mostly Clear
|
41°F |
0 to 3 mph
W
|
|
Tuesday
Nov 10
|
Mostly Sunny
|
62°F |
0 to 8 mph
ENE
|
|
Tuesday Night
Nov 10
|
Mostly Clear
|
42°F |
1 to 6 mph
W
|
|
Veterans Day
Nov 11
|
Sunny
|
58°F |
0 to 6 mph
NW
|
|
Wednesday Night
Nov 11
|
Mostly Clear
|
42°F |
1 to 6 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Altona.