Cottonwood Creek Water Temperature Forecast

Monument, Oregon — MSWCD Gage Station
Forecast: Thursday, February 19, 2026 Temp: Feb 16 – Feb 26, 2026 Flow: Feb 12 – Feb 23 (obs + predicted)
Water temperatures are below alert thresholds (23.0°C / 73.4°F).

Water Temperature — 3-Day Observed + 7-Day Forecast

Observed
Predicted Mouth
Predicted Upstream
Alert 23.0°C
<10°C Cold
10-18°C Normal
18-21°C Warm
21-23°C High
≥23°C Alert

Discharge (cfs) & Gage Height (ft) — 7-Day Observed + 4-Day Predicted

Observed Flow
Predicted Flow
Predicted flow uses the trained Random Forest model driven by weather forecast and SNOTEL data from Starr Ridge.

7-Day Weather Forecast — Monument, OR

Today
Feb 19
Cloudy
30°F-1°C
RH 67% · DP 20°F
Fri
Feb 20
Cloudy
29°F-2°C
RH 75% · DP 21°F
Sat
Feb 21
🌥
Cool
34°F1°C
RH 61% · DP 21°F
Sun
Feb 22
🌥
Cool
41°F5°C
RH 57% · DP 26°F
Mon
Feb 23
Cloudy
44°F7°C
RH 70% · DP 34°F
Tue
Feb 24
Cloudy
39°F4°C
RH 78% · DP 33°F
Wed
Feb 25
Cloudy
38°F3°C
RH 73% · DP 30°F

Daily Detail (°F with °C below)

DateSrcObs WaterPred MouthPred Upstream Flow (cfs)Gage (ft)Air (°F)RH (%)
Mon Feb 16 Obs 40.44.7°C 40.14.5°C 38.13.4°C 175.2 3.144 35.2 87
Tue Feb 17 Obs 39.64.2°C 38.33.5°C 35.62.0°C 175.8 3.148 32.6 76
Wed Feb 18 Obs 38.33.5°C 37.12.8°C 34.41.3°C 173.8 3.133 30.3 73
Today Obs 34.31.3°C 36.32.4°C 33.30.7°C 170.7 3.111 29.9 67
Fri Feb 20 Fcst -- 33.91.0°C 32.00.0°C 165.3 Pred 3.071 Pred 28.6 75
Sat Feb 21 Fcst -- 35.72.0°C 33.10.6°C 163.7 Pred 3.059 Pred 33.5 61
Sun Feb 22 Fcst -- 38.43.6°C 36.12.3°C 163.2 Pred 3.055 Pred 40.5 57
Mon Feb 23 Fcst -- 40.74.8°C 38.83.8°C 163.6 Pred 3.059 Pred 43.7 70
Tue Feb 24 Fcst -- 39.84.3°C 38.03.3°C 164.0 Pred 3.061 Pred 39.4 78
Wed Feb 25 Fcst -- 39.84.3°C 37.43.0°C 163.5 Pred 3.058 Pred 38.3 73
Thu Feb 26 Fcst -- 40.54.7°C 37.63.1°C 163.5 Pred 3.058 Pred 38.8 68
Cottonwood Creek Water Temperature Prediction System • Generated 2026-02-19
Models: RF flow (Starr Ridge SNOTEL + Monument Wx) → Ridge water temperature